SLOVNAFT a.s.

R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

MGS-S-REF-I-5

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
Page/Pages: 2/5

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.12.2006 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5
R&M Division

Contents

Release list ................................................................................................................................................................... 2

Book breakdown ........................................................................................................................................................... 4
General ......................................................................................................................................................................... 5

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 SLOVNAFT a.s. MGS-S-REF-I-5
R&M Division

Book breakdown

Descriptions Identifier Rev.:

Specification sheets for instrumentation items MGS-S-REF-I-5 1.00.01
Temperature measuring instruments MGS-S-REF-I-5.1 1.00.01
Pressure measuring instruments MGS-S-REF-I-5.2 1.00.01
Differential pressure measuring instruments MGS-S-REF-I-5.3 1.00.01
Flow measuring instruments MGS-S-REF-I-5.4 1.00.01
Restriction-type flow measuring instruments MGS-S-REF-I-5.4.1 1.00.01
Vortex-type flow measuring instruments MGS-S-REF-I-5.4.2 1.00.01
Coriolis Mass flowmeters MGS-S-REF-I-5.4.3 1.00.01
Annubar-type flow measuring instruments MGS-S-REF-I-5.4.4 1.00.01
Turbine-type flow measuring instruments MGS-S-REF-I-5.4.5 1.00.01
Ultrasonic-type flow measuring instruments MGS-S-REF-I-5.4.6 1.00.01
Inductive-type flow measuring instruments MGS-S-REF-I-5.4.7 1.00.01
Rotameter-type flow measuring instruments MGS-S-REF-I-5.4.8 1.00.01
Positive displacement flow measuring instruments MGS-S-REF-I-5.4.9 1.00.01
Thermal dispersion-type flow measuring instruments MGS-S-REF-I-5.4.10 1.00.01
Level measuring MGS-S-REF-I-5.5 1.00.01
Level measuring instruments MGS-S-REF-I-5.5.1 1.00.01
Differential pressure transmitters for level measuring MGS-S-REF-I-5.5.2 1.00.01
Radioactive level measuring instruments MGS-S-REF-I-5.5.3 1.00.00
Radar gauges MGS-S-REF-I-5.5.4 1.00.00
Valves MGS-S-REF-I-5.6 1.00.01
Control valves MGS-S-REF-I-5.6.1 1.00.01
On/Off valves MGS-S-REF-I-5.6.2 1.00.01
Analysers MGS-S-REF-I-5.7 1.00.01

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General
The general specification sheets for the instruments generally used in practice, as well as the individual
specification sheets for the instrument elements mostly used are issued in the Instrumentation Product
Specification Book.
The individual specification sheets include data of one actual instrumentation function, but in the present case
serving as a sample only.
.

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SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

1 Temperature Measuring Instruments

MGS-S-REF-I-5.1

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.1
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
1 Temperature Measuring Instruments Page/Pages: 2/10

Release list

Rev. Date Description Edited Verified Approved

0.00.00 26.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 11.11.2010 General review Jozef Horváth Zuzana Stanová
1.00.00 30.11.2011 General issue Jozef Horváth Zuzana Stanová
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.1
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ........................................................................................................................................................ 5
1.2 Protection ......................................................................................................................................................... 5
1.3 Accuracy .......................................................................................................................................................... 5
1.4 Governing Codes & Standards ........................................................................................................................ 5
2 Technical requirements ......................................................................................................................................... 5
2.1 Thermowells .................................................................................................................................................... 5
2.2 Sensors ............................................................................................................................................................ 5
2.3 Head ................................................................................................................................................................ 6
2.4 Other ................................................................................................................................................................ 6
2.5 Local thermometers ......................................................................................................................................... 7
2.6 Temperature switches ..................................................................................................................................... 7
2.7 Nameplates ...................................................................................................................................................... 7
3 Transmitter diagnostics ......................................................................................................................................... 7
4 Datasheet to be provided for MMS (maintenance management system) ............................................................. 8
5 Appendix ................................................................................................................................................................ 8

Thermocouple specification sheet (sample) ................................................................................................................. 9

Resistant temperature detector specification sheet (sample) .................................................................................... 10

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 SLOVNAFT a.s. MGS-S-REF-I-5.1
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Instruction/maintenance manual with contents also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to EN 60751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (EN 61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to EN 61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.1
R&M Division

TEMPERATURE INSTRUMENTS

1 General
This specification covers basic design requirements regarding temperature instruments installed in production
facilities.

1.1 Deviations
Project Specifications may contain differences from or modifications of the requirements set forth herein.
Any deviations from the contents of this specification and project specifications shall be permitted only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instruments shall meet the requirements of Book MGS-M-REF-I-4 &
MGS-S-REF-I-4, Section “Environmental conditions and required protection levels”.

1.3 Accuracy
The accuracy of temperature measuring instruments shall be at least 1%, for local thermometers the accuracy shall
be at least 2%.

1.4 Governing Codes & Standards

According to MGS-M-REF-I-4 & MGS-S-REF-I-4

2 Technical requirements
1. The instruments installed in process units shall conform to all mechanical and process requirements of the
technology unit.
2. The signal ranges applied shall correspond to the requirements set forth in Book MGS-M-REF-I-4 & MGS-
S-REF-I-4, Section “Signal ranges, measuring ranges, scale data, accuracy requirements”
3. The instrument shall conform to the requirements and specifications set by hazardous area classification of
the technology unit.

2.1 Thermowells
1. Sensors for temperature measurement shall be protected by thermowells to provide their replacement.
Exceptions may be special thermometers (such as skin thermocouples, reactor thermocouples, etc.).
2. Thermowell materials shall correspond to the relevant piping class/piping specifications – however it shall
be at least SST 304 or SST 316, unless the service or measurement range dictates other conditions.
3. The process connection of the thermowell shall be DN50 flange with minimum PN40 rating (or equivalent
ANSI ratings), unless the process pressure does not dictate otherwise. Sealing surfaces (facing) shall be
provided according to pipe class requirements.
4. The length of thermowells shall be selected from the following series: 100-150-200-250-300-400-500-600
mm, or ten times of these lengths. Deviations are allowable in special cases. It shall be ensured by the
installation of the thermometer that the sensing point shall be pointed at the 40-60% of the diameter.
5. Thermowells shall be drilled and tapered design, unless required otherwise by the specifications.
6. In case the diameter of the process line is less than 150 mm, it shall be increased to DN 150 near the
temperature sensor, or it shall be installed at an angle or in an elbow.

2.2 Sensors
1. Up to 450°C operating temperature Platinum 100 resistance temperature detectors (RTD’s) shall be used
for the purpose of temperature measurement and control in a four-wire system, if possible, unless specified
otherwise by process requirements. The shock and vibration conditions of installation shall be determined
when defining the location and selecting of RTD’s, if these values are found excessive thermocouples shall
be used.

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2. In the case of Platinum 100 resistance temperature detector accuracy class “B” shall be usually applied. In
special cases (e.g. custody transfer measurements) class “A” is required.
3. Above 450°C operating temperatures thermocouples shall be used. Within a unit – if there is no technical
reason against it – the same type of thermocouples shall be used.
4. The use of “K” type (Ni-Cr-Ni) thermocouples shall be preferred against other types of thermocouple, if
there is no technical reason against it.
5. In respect of design thermocouples shall be ungrounded, encased and hot junction type.
6. Each thermocouple and RTD applied in control loop shall be dual element. The second one serves as a
spare Sensor for control shall not be used other service (shut down).
7. If allowed by operating conditions (temperature, vibration, etc.) head-mounted or the remote temperature
transmitters near the sensor may be used.
8. Both in RTD and thermocouple cases if field transmitter is used, the protection type of the transmitter shall
meet the area classification.
9. In indication purpose cases multiplexer or remote I/O usage is also acceptable.

2.3 Head
1. The connection head and the cable gland shall provide protection against environmental effects and in the
case of intrinsically safe devices its enclosure shall be at least IP 65.
2. The connection head shall be robust mechanical construction.
3. For armoured cables double sealing cable gland shall be used that provides for grounding the armouring of
the cable to the instrument case and grips both the outside insulation of the cable and the insulation inside
the armour.
4. Screw type terminals shall be used as cable connection.
5. The temperature sensor head shall be connected by threaded connection and protected against loosening.
6. The connection head shall be made of metal, and its cover shall be chained to the head (to avoid loosing
the head).
7. The extension between the thermowell and the head shall have a nipple-union-nipple connection. The
length of nipple between the thermo well and the head shall make it possible to insulate the process line or
the equipment, and shall have a nipple-union-nipple connection.
8. Instrument head shall be connected to the equipotential earth system of the unit.
9. Head protection: see App.
10. In head mounted transmitter cases, the extension length between head and process line shall be long
enough to prevent the transmitter against thermo shock. In some cases the orientation of thermometer
(installation in suitable location) shall ensure this prevention.

2.4 Other
1. The signal cables of the resistance temperature detectors shall be installed directly to the signal receiver
without any additional connection.
2. For thermocouples compensation cables shall be used. For compensation cables cable connections in
junction boxes are not allowed.
3. The secondary instruments of the thermocouples shall have integrated cold junction point compensation.
The transmitters shall be smart electrical one, with intrinsically safe (Ex i) protection, they must not have
servomechanism.
4. The use of capillary tube shall be avoided. Where its use is necessary, it shall be flexible, stainless steel
tube with PVC cover, with a length according to the requirement, but at least 1,5 m.
5. Armouring of cables: see App.
2
6. For cabling of resistance thermometers the use of solid core (min 1.0 mm cross section) twisted pair or in
special cases twisted triple (min 15 twists/meter), screened (spiral wound with aluminium foil, with tinned
copper drain wire) cables is required.
2 2
7. For signal cabling of thermocouples the use of solid core (min 1.3 mm , or for more pairs 0.8 mm ) cross
section), twisted pair (min 15 twists/meter), screened by pairs (spiral wound with aluminium foil, with tinned
copper drain wire) compensation cables is required. The material of the main core and the colour of its
insulation and the insulation for the external insulation must comply with the relevant standards. Multi core
cable must have a common screening.
8. The design of temperature sensors shall provide resistance against harmful environmental vibrations.
Resistance temperature detectors shall be spring-loaded.

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9. In the selection of the place of installation of the thermometers easy access and testing shall be taken into
consideration.

2.5 Local thermometers

1. Tension-type and bimetallic sensors can be used as local temperature indicators and as sensors of local
temperature controllers.
2. The wetted parts and house of local thermometers shall be made of stainless steel.
3. The body shall be adjustable in any angle.
4. The diameter of the local thermometer dial shall be at least 100 mm.
5. At sites exposed to vibrations, liquid filling shall be applied.
6. Connection: see App.

2.6 Temperature switches

1. Proximity switches or sealed gold plated SPDT micro-switches shall be used as temperature switches.

2.7 Nameplates
Durable nameplates shall be provided for all temperature sensors (sensors, switches), mounted in a manner
ensuring good readability during operation even with insulated installations.
Nameplates shall contain at least the following information:
• name of the manufacturer
• model number and serial number of the temperature sensor
• protection/enclosure symbol
• size and pressure rating of process connection
• measuring range of temperature sensor
• ID number (tag number) of temperature sensor
• set-point in the case of temperature switches

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Temperature transmitters shall detect open and shorted temperature sensors.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure

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o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system)

See app.

5 Appendix

2.3: Head
ad 8: Head protection :
Intrinsically safe protection (Exi) of head shall be preferred. Flameproof enclosure (Ex d) is recommended if
intrinsically safe (Ex i) protection cannot be applied.

2.4: Other
ad 5: Armouring of cables:
Armouring for mechanical protection of cables shall be used in case of needs.

2.5: Local thermometers

ad 6: Connection
Flanged (DN 50) or threaded (M20x1,5) connection shall be used as connections for thermowell of bi-metal
type thermometers. Threaded connection M27x2 shall be used as connections for thermowell of gas filled
type thermometer.

4 Datasheet to be provided for MMS (maintenance management system): N/A

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 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.1
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 9/10
Temperature measuring instruments 1.00.00 30.11.2011 Jozef Horváth Rev.: 1.00.00
Thermocouple specification Rev Date Designer Date: 30.11.2011
1 Function Area Class. Temp. meas. Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Explosion Proof Enclosure - min. IP65
GENERAL
5 Explosion Proof For Use in IS System EEx ib IIC T3
6 See second. Instr. Spec. -
7 Ambient Temperature -25...+45 °C
8 -
9 Element Type "K" típus / "K" type (MSZ EN 60584) .
10 Element Mat. Wire size Ni-Cr-Ni Solid min. diam.:1 mm
11 Outer sheet material 304 SST / Inconel
ELEMENT 12 Wire connection 2 x 2 wire Terminal Block with Spring
13 Grounding Isolation Ungrounding Isolated
14 Element no. Single .
15
16 Well construction Material Drilled, Tapered 316 SST
17 Dimensions Wall thickness Diameter 27/19 mm min 6,5 mm
18 End Conn. & Rating DN50 Flanged PN40 / DIN 2635 DIN 2526 Form C
WELL
19 Spacer conn. Size to well 1/2" NPT M
20 Fitting Configuration Length Nipple-union-nipple max. 130 mm (T)
21
22 Head Material Chain material Cast Alloy SST
23 Construction See figure 1 Screwd Cover & Chain.
24 Connection to the spacer 1/2" NPT F
HEAD
25 Grounding connection Inside and outside to
26 Conduit Connection M20x1,5 with Cable gland PG 13,5 **
27
28 Complete Assembly Yes
29 Vibration STN EN 60751.4.4.2
OTHER
30 Accessories
31
Notes: DN50 / PN NPT1/2"
* To be filled by vendor.
** Double compression type cable gland
Required documentation: 1,2,3,4,5,11

H
U T Figure 1

Min. Max. Max.

No Tag No. P&I No. Service Pipe Line No. Fluid T T P Well lenght Pipe end height Note
P2005-ED- °C °C barg (U) mm (H) mm

1. TE 001 R101/1 80-P7002-BQE32 naphta -5 40 21 200 150 -

DC light naphta
2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.1
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 10/10
Temperature measuring instruments 1.00.00 30.11.2011 Jozef Horváth Rev.: 1.00.00
Resistant temperature detector specification Rev Date Designer Date: 30.11.2011
1 Function Area Class Temperature meas. Zone 1 IIC T4 Rev.:
2 Manufacturer *
3 Model *
4 Explosion Proof Enclosure - min. IP65
GENERAL
5 Explosion Proof For Use in IS System EEx ib IIC T4
6 See second. Instr. Spec. 98006-I.-6-IA-M1/12
7 Ambient Temperature -25...+45 °C
8 .
9 Element Type Accuracy class Pt100 (DIN EN 60751) Class "B"
10 Element Mat. Leads Platinum By Manufact.
ELEMENT 11 Outer sheet material DIN 1.4541
12 Wire connection 1 x 4 wire Terminal Block with Spring
13 Element no. Single .
14 Well construction Material Drilled, Tapered DIN 1.4571
15 Dimensions Wall thickness Diameter 27/19 mm min 6,5 mm
16 End Conn. & Rating DN80 Flanged PN40 / DIN 2635 DIN 2526 Form C
WELL 17 Spacer conn. Size to well 1/2" NPT M
18 Fitting Configuration Length Nipple-union-nipple max. 130 mm
19 Design range: °C 450 bar-g 40
20
21 Head Material Cast Alloy
22 Construction See figure 1 Screwd Cover & Chain.
23 Connection to the spacer 1/2" NPT F
HEAD
24 FGrounding connection Inside and outside to
25 Conduit Connection M20x1,5 with Cable gland **
26
27 Complete Assembly Yes
28 Vibration DIN EN 60751.4
OTHER
29 Accessories
30
Notes:
* To be finalised before ordering DN50 / PN NPT1/2"
** Double compression type cable gland
1., Required documentation: 1,2,3,4,5,11
2., One active element and one spare
3., Certification of material for well and flange shell be delivered
4., Certification of individual pressure test for well and flange shell be delivered
H
U T
Figure 1
Min. Max.
No Tag No. P&I No. Service Pipe Line No. Fluid T T P Well lenght Pipe end height Note
98006-I-6-PI °C °C barg (U) mm (H) mm

1. TE 002 003 W102/1 outlet 200-640123-104-x Gasoil 120 380 25 300 200 87% H2 cont.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

2. Pressure measuring instruments

MGS-S-REF-I-5.2

Rev 1.01.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.2
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.01.01
5 Specification sheets for instrumentation items Date: 29.02.2016
2 Pressure measuring instruments Page/Pages: 2/11

Release list

Rev. Date Description Edited Verified Approved

0.00.00 26.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 05.12.2011 General review L. Kántor
1.00.00 30.11.2011 General issue L. Kántor Z. Stanová
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of Technology
1.01.01 29.02.2016 Revision Z. Stanová R. Kopálek Head of
Maintenance

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.2
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Accuracy ....................................................................................................................................................... 5
1.4 Applicable codes & standards ...................................................................................................................... 5
2 Technical requirements ......................................................................................................................................... 5
2.1 General ......................................................................................................................................................... 5
2.2 Pressure transmitters .................................................................................................................................... 6
2.3 Pressure switches ......................................................................................................................................... 6
2.4 Local Pressure Regulators ........................................................................................................................... 6
2.5 Local Pressure Controller. ............................................................................................................................ 7
2.6 Local Pressure Gauges ................................................................................................................................ 7
2.7 Nameplate..................................................................................................................................................... 7
3 Transmitter diagnostics ......................................................................................................................................... 7
4 Datasheet to be provided for MMS (maintenance management system) ............................................................. 8
5 Appendix ................................................................................................................................................................ 8

Pressure transmitter specification sheet (sample) ....................................................................................................... 9

Pressure switch specification sheet (sample)............................................................................................................. 10
Pressure transmitter (FFB) specification sheet (sample) ........................................................................................... 11

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 SLOVNAFT a.s. MGS-S-REF-I-5.2
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. Vibration-proof certification according to IEC751.4.4.4.2.
10. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
11. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
12. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
13. Certificate of compliance with fire-protection requirements.
14. CE declaration of conformity.
15. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.2
R&M Division

PRESSURE MEASURING INSTRUMENTS

1 General
The present specification describes the basic design requirements regarding pressure measuring instruments
installed in production facilities.

1.1 Deviations
Project Specifications may contain differences from or modifications of these requirements.
Any deviations from the contents of this specification and project specifications are subject to written authorisation
by MOL Group.

1.2 Protection
The explosion-protection and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-
4 & MGS-S-REF-I-4, “Site conditions and specified protection classes”.

1.3 Accuracy
The reference accuracy of the measuring instrument shall be better than ±0.15% of span.
Stability with relation to the measuring range and at least for 24 months shall be better than ±0.2% of reading.
The reference accuracy of local pressure gauges shall be less than ±1.5% of span.

1.4 Applicable codes & standards

According to MGS-M-REF-I-4 & MGS-S-REF-I-4

2 Technical requirements
2.1 General
1. The instruments installed shall conform to all mechanical and process requirements. The specified
materials shall be in accordance with the pipe class specification system, standards and requirements.
2. The material of wetted components shall be at least SS 316.
3. Diaphragm material shall be selected to prevent diffusion from and into the capillaries. (E.g. with usage of
gold coated diaphragm surface for high temperature applications and presence of H2).
4. Pressure sensor elements shall be provided with overload protection keeping the zero shift of the calibrated
instrument scale within 0.5% at overpressures equal to minimum 1.3 times the upper range limit. In case of
vacuum measurement, this criteria shall be provided at full vacuum regardless of range limits.
5. The instrument shall be designed to provide full protection for the operating personnel even in case of
failures.
6. The seal material shall be able to endure the operational pressure and temperature even in the case of the
failure of the diaphragm or other pressure-tight components.
7. Pressure-tight components shall have confined seals (tongue and groove or ”O”-ring).
8. DN25 or 3/4” size flanged globe valves shall be installed as first block valves for pressure instruments and
blanked off with counter-flanges drilled for the installation of 1/2” NPTF or 3/4” NPTF or socket weld
connections.
9. Pressure measuring elements connected to the process shall have ½” NPT threads, possibly with
additional oval flanges, and flat surfaces required for mounting.
10. In case of high pressure applications (above 45bar) double block valves shall be used in hook-up lines.
11. Pipe specification: see App.
12. Transmitters shall be located as close to pressure taps as possible. The allowable maximum length of
hook-up lines is 1.5 m.
13. Pressure measuring devices shall be installed below the pressure taps for liquid and steam services and
above the pressure taps for gas and incondensable vapour services. Valves and pipes with minimum ½”
sizes hall be used for draining or venting.
14. For the measurement of fluctuating pressures pulsation dampers shall be installed upstream of the sensor
element. Pulsation dampers shall be adjustable from the outside.

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15. Provisions shall be made for the checking, adjusting, venting or zero setting of pressure instruments at site
without disconnecting piping or dismounting. Two block valve for pressure switch and three way block
valve (manifold) for pressure transmitter shall be installed between the isolating valve of the pressure tap
and the instrument. Venting shall be designed so that the protection of the operating personnel will be
ensured. Aggressive or toxic fluids shall be drained or vented in a closed system.
16. Using of inert gas or fluid purging can be necessary against plugging.
17. Diaphragm seal can be used only with written permission of MOL Group. In case a seal diaphragm is
required (if the medium has high viscosity and/or contains solid contamination.), it shall be integrated with
the instrument and calibrated together with it. If sensor elements with diaphragm seal are used, provisions
shall be made for their cleaning.
18. Capillary lines shall be filled with neutral pressure transmitting fluid suitable for the process temperature
and the instrument shall be calibrated together with the sensor element. The capillary shall be made of
stainless steel tubing with flexible guard (corrugated metal tube or PVC jacket), its length shall be the
shortest possible but never more than 10 meters.
19. Transmitters and separately installed local indicators shall be fitted with mounting yokes.
20. For absolute pressure instruments the measurement inaccuracy caused by the change in the atmospheric
pressure shall be completely compensated.
21. The effect of ambient temperature shall be minimal for every measuring element. The measuring element,
the setting spring, etc. shall have a minimal thermo expansion coefficient.
22. Range limits shall be smoothly adjustable in the full range and the adjusting device shall be lockable.
Instruments with facilities for wide range offset and range limit reduction, zero offset and suppression are
preferred.
23. The instrument shall conform to the requirements and specifications set by hazardous area classification.
24. The instrument body and the cable gland shall provide protection against environmental effects and in case
of intrinsically safe devices their protection class shall be minimum IP 65.
25. Accessibility and ease of handling shall be considered in selecting the place of installation of pressure
instruments and process pressure taps.

2.2 Pressure transmitters

1. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4:“Signal range, measuring range, scale data, accuracy requirements”.
2. Pressure transmitters shall provide increasing outputs at increasing inputs (i.e. shall be direct action).
3. The instruments shall have integral over-voltage protection.
4. Pressure measuring instruments shall have integral dial indicators ensuring good readability (see MGS-M-
REF-I-4 & MGS-S-REF-I-4). The integral indicator shall provide reading of the measured parameter in
physical value and indication of the unit of measure. In lack of integral indicator a local dial indicator shall
be installed in the close vicinity of the transmitter.
5. Cable specification: see App.
6. For armoured cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour.
7. The instrument body shall be connected to the equipotential earth system of the plant.

2.3 Pressure switches

1. Pressure switches are used in cases where there is no other pressure detector installed in the vicinity or
critical shutdown/alarm functions have to be implemented.
2. Proximity switches or sealed gold coated SPDT micro switches with oxidation proof contacts shall be used
as pressure switches.
3. The instruments shall have integral over-voltage protection.
4. Cable specification: see App.
5. For armoured cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour.
6. The instrument body shall be connected to the equipotential earth system of the plant.

2.4 Local Pressure Regulators

1. The use of self-actuating pressure regulators shall be avoided as far as possible. The prerequisite of their
installation is a permissible deviation from the set-point not exceeding 10% of span and valve sizes below

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DN50. Should the use of self-actuating pressure regulators be unavoidable then the use of pressure
regulators actuated by pilots using the process fluid shall not be permissible and only direct-acting pressure
regulator with adjustable springs shall be used.

2.5 Local Pressure Controller.

1. Proportional and integral functions of local controllers shall be adjustable and auto/manual selector
switches shall be provided with the clear display of conditions required for the safe selection of
manual/auto modes.

2.6 Local Pressure Gauges

1. The measuring mechanism body and case of local pressure gauges shall be made of stainless steel.
2. Bourdon or membrane type pressure gauges shall be generally used.
3. The local pressure gages shall have over-pressure protection.
4. At least 100 mm diameter indicator dial shall be provided for both direct and indirect pressure
measurements.
5. At places exposed to vibration liquid fill shall be applied.
6. Process connections shall be at the bottom, G½” or M20x1.5 mm size. For flush mounting the connection
shall be at the back.
7. For pressure gauges without measurement range compression, the operating range shall be between
30…70% of the measuring range of the gauge.
8. Pressure gauges that are accessories of other equipment (e.g. positioner, filter, controller, etc.) shall
conform to vendor standards. The dial diameter of these instruments shall be at least 60 mm.
9. For congealing or aggressive medium applications pressure gauge with diaphragm seal is acceptable.
10. The local pressure gauges shall be connected to the technological part via isolating valve (mechanical part)
and via three-way test manometer valve.
11. Maximal operating pressure shall be marked by permanent red mark on the scale of each pressure gauge
that is installed on the pressure vessel.

2.7 Nameplate
All pressure detectors and transmitters shall be provided with durable nameplates easy to read during operation
even if insulated.
Nameplates shall contain at least the following information:
• Name of the manufacturer
• Model number and serial number of the pressure detectors and transmitters
• Symbol of protection class
• Nominal size and pressure rating of outdoors pressure detectors
• Measuring range of pressure detectors and transmitters
• ID (tag) number of pressure detectors and transmitters
• Length of the capillary, data of filling liquid
• Set-point for pressure switches

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Pressure transmitter shall have plugged impulse line detection capability.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error

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o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system)

See app.

5 Appendix
2.1: General
ad 11: Pipe specification:
Ø 12x1,5mm seamless stainless steel pipe shall be used for hook-up lines.

2.2: Pressure transmitters

ad 5: Cable specification:
The signal lines of pressure instruments shall conform to the general requirements on cables. The cables
of the pressure instruments shall have stranded twisted pair and shielded against interference. In case of
necessity armoured cables may be used.

2.3: Pressure switches

ad 4: Cable specification:
The signal lines of pressure instruments shall conform to the general requirements on cables. The cables
of the pressure instruments shall have stranded twisted pair and shielded against interference. In case of
necessity armoured cables may be used.

4: Datasheet to be provided for MMS (maintenance management system): N/A

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 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.2
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page/Pages: 9/11
Designer Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Revision: 1.00.00
Pressure transmitter Rev Date Design. Date: 30.11.2011
1 Function Area Classification Transmitter Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Electronics housing mat. Cast Alloy -
5 Enclosure min. IP65
GENERAL 6 Explosion Proof EEx ib IIC T3
7 Transient Protector Built in
8 Mounting On 2" pipe with yoke
9 See second. Instr. Spec. -
10 Ambient Temperature -25...+50 °C
11
12 Supply Loop powered
13 Output Signal Communication 4...20 mA HART
14 Signal out charact. Linear
15 at increased input signal Output signal is increasing
16 Failure mode alarm Output signal < 3,75 mA
17 Respons time Update time 100 msec 50 msec
18 Physical Layer Type -
19 Voltage expected Current draw - -
TRANSMITTER 20 Function Blocks Other Blocks - -
21 Diagnostic Information -
22 Other requirement -
23 Output Gage Digital Eng. Unit, linear Adjustable
24 Accuracy < 0,1% of span
25 Turn Down Ratio 100:1 -
26 Local Span and Zero Yes
27 Stability < 0,2% URL for 12 months
28 Conduit Connection for signal with Cable glande *
29 Element Type Service Diaphragm Gage Pressure
30 Element Material 316 SST
31 Wetted parts material SST
32 Fill fluid silicon oil
ELEMENT 33 Overpressure Rating 1,5 x range
34 Process Connection For flange adaptors (DIN 19213)
35 Connection Size 1/2"-14 NPT (Female)
36 Flange Mat. Connection SST Side (or MFR)
37
38 Manufacturer Model . .
DIAPHRAGM 39 Connection Size - - - -
SEAL 40 Capillary Lenght Material - -
41 Fill fluid -
42 Valve Manifold Material - -
43 Counter Flange and Seal 1 pcs flange adaptor bolts and seal
OPTIONS
44 Compensation .
45 .
Notes:
Required documentation: 1,2,3,4,5,8,12,15
1.Gold plated diaphragm
* Double compression type cable gland

No Tag No. P&I No. Service Fluid Line No. Max. Pres. Max. Temp. Adj. Range Set Range Note
P2005-ED- kPag °C kPag kpag
Alapa. 2017-18-ból L.napht 150-P7001-
1. PT 001 R101/1 700 80 MFR 0-1000 -
Feed from 2017-18 a BPE31
2.

3.

4.

5.

6.

7.

8.
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.2
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page/Pages: 10/11
Designer Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Revision: 1.00.00
Pressure switch Rev Date Design. Date: 30.11.2011
1 Function Area Classification Pressure switch Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Construction Type By Manufacturer
5 Elec. housing mat. Enclosure Cast Alloy min. IP65
GENERAL 6 Explosion Proof EEx ib IIC T3
7 Transient Protector In built
8 Mounting On 2" pipe with yoke
9 See second. Instr. Spec. -
10 Ambient Temperature -25...+50 °C
11 Design temperature .
12 Element Type Service Diaphragm Gage Pressure
13 Element Material 316 SST
14 Wetted parts material 316 SST
ELEMENT 15 Overp. Rating 1,5 x range
16 Process Connection M20x1,5 (Male)
18 Connection Bottom .
19 Rating PN 16
20 Tag Number Function .
21 Manufacturer Model . .
22 Location Mounting In head of switch .
23 Supply Accuracy No < 0,5%
24 Switching point adjustable Inside
26 Switches H = Increasing
SWITCHES 26 Switches L = Decreasing
26 Output Signal Connection 1 x SPDT/ Voltage free Terminal board
27 Switches load Surface 10 mA Gold plated
28 Hermetically seald Switches Yes
29 Dead Band minimum
30 Line fault detection outside Open circuit if I<100microA / Short circuit if I<6,5mA
31
32 Manufacturer Model . .
DIAPHRAGM 33 Connection Size - - - -
SEAL 34 Capillary Lenght Material - -
35 Fill fluid -
36 Valve Manifold Material - -
37 Counter Flange and Seal -
OPTIONS 38 Compensation .
39 Conduit Connection for signal with Cable glande **
40 .
Notes:
* To be filled by vendor.
Required documentation: 1,2,3,4,5,8
** Double compression type cable gland

No Tag No. P&I No. Service Fluid Pipe Line No. Max. Pres. Max. Temp. Adj. Range Set Range Note
P2005-ED- kPag °C kPag kPag
naph
1. PSH 002 R101/1 V1 400 50 0-400 350
V1 pressure max. ta
2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.2
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page/Pages: 11/11
Designer Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Revision: 1.00.00
Pressure transmitter (FFB) Rev Date Design. Date: 30.11.2011
1 Function Area Classification Transmitter Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Electronics housing mat. Cast Alloy -
5 Enclosure IP65
GENERAL 6 Explosion Proof EEx ib IIC T3
7 Transient Protector Built in
8 Mounting On 2" pipe with yoke
9 See second. Instr. Spec. -
10 Ambient Temperature -25...+45 °C
11
12 Supply Bus Powered
13 Output Signal Communication - Foundation fieldbus H1
14 Signal out charact. -
15 at increased input signal Output signal is increasing
16 Respons time 20 msec
17 Failure mode alarm -
TRANSMITTER
18 Output Gage Digital Eng. Unit, linear Adjustable
19 Accuracy < 0,1% of span
20 Turn Down Ratio 100:1 -
21 Local Span and Zero Yes
22 Stability < 0,2% URL for 12 months
23 Conduit Connection for signal with Cable glande **
24 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
25 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
26 Function Blocks Other Blocks AI1, AI2, PID -
27 Diagnostic Information Yes
FOUNDATION
FIELDBUS ***
28 Backup LAS funct. Polarity Sensitive Yes No
29 Channel number and description
30 Other requirement
31 IS Parameters for field device, max. internal Ci, Li *
32 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
33 Element Type Service Diaphragm Gage Pressure
34 Element Mat. SST
35 Wetted parts material SST
36 Fill fluid silicon oil
ELEMENT 37 Overp. Rating 1,5 x range
38 Process Connection For flange adaptors (DIN 19213)
39 Connection Size 1/2"-14 NPT (Female)
40 Flange Mat. Connection SST Side
41
42 Manufacturer Model . .
43 Connection Size - - - -
DIAPHRAGM SEAL
44 Capillary Lenght Material - -
45 Fill fluid -
46 Valve Manifold Material - -
47 Counter Flange and Seal 1 pcs flange adaptor bolts and seal
OPTIONS
48 Compensation .
49 .
Notes:
Required documentation: 1,2,3,4,5,6,8,13,15 1: Gold plated diaphragm
*: To be filled by Vendor. 2: NACE Certificate required.
**: Double compression type cable gland for OD 9-11,5 cable
***: The DEV, DD and CF service revision level must also be give.
Design

Design
Oper

Oper
ating

ating

No Tag No. P&I No. Service Fluid Line No. Adj. Range Set Range Note
pres. kPag temp. °C kPag kPag
Heavy Feed from 8"-PG-
1. KPT-1401 P1 Gasoil 490 1900 36 100 0-13800 0-2500 -
P-101-AB 10104-D24-
Heavy Feed from 8"-PG-
2. KPT-1402 P1 Gasoil 490 1900 36 100 0-13800 0-2500 -
P-101-AB 10104-D24-
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

3. Differential pressure measuring instruments

MGS-S-REF-I-5.3

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.3
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
3 Differential pressure measuring instruments Page/Pages: 2/11

Release list

Rev. Date Description Edited Verified Approved

0.00.00 26.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 30.09.2011. General review M. Gál Z. Stanová
1.00.00 30.09.2011. General issue M. Gál Z. Stanová
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.3
R&M Division

Contents
1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Accuracy ....................................................................................................................................................... 5
1.4 Applicable codes & standards ...................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 General ......................................................................................................................................................... 5
2.2 Installation and cabling ................................................................................................................................. 6
2.3 Special applications ...................................................................................................................................... 6
2.4 Differential pressure gauges ......................................................................................................................... 6
2.5 Differential pressure switches ....................................................................................................................... 7
2.6 Transmitters .................................................................................................................................................. 7
2.7 Nameplate..................................................................................................................................................... 7
3 Transmitter diagnostics ......................................................................................................................................... 7
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 8
5 Appendix ................................................................................................................................................................ 8

Differential pressure transmitter specification sheet (sample)...................................................................................... 9

Differential pressure switch specification sheet (sample)........................................................................................... 10
Differential pressure transmitter (FFB) specification sheet (sample) ......................................................................... 11

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REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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DIFFERENTIAL PRESSURE MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding differential pressure measuring instruments
installed in production facilities.

1.1 Deviations
Project Specifications may contain deviations from or modifications to the requirements specified herein.
Any deviations from the contents of this document and project specifications shall be allowed with the written
authorization of MOL Group.

1.2 Protection
The explosion-protection and IP protection of the instruments shall meet the requirements of Section MGS-M-REF-
I-4 & MGS-S-REF-I-4: “Site conditions and required protection classes. In case of intrinsically safe devices
protection class shall be minimum IP 65

1.3 Accuracy
The reference accuracy of the measuring instruments shall be better than ±0.15% of span.
Stability with relation to the measuring range and at least for 24 months shall be better than ±0.2% of reading.

1.4 Applicable codes & standards

According to MGS-M-REF-I-4 & MGS-S-REF-I-4

2 Technical Requirements
2.1 General
1. The instruments installed shall conform to all mechanical and process requirements.
2. The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.
• The material of the instrument case shall be suitable for applications in the hydrocarbon industry and
made of carbon steel as a minimum.
• The material of wetted structural elements shall be at least SS 316
• Diaphragm material shall be selected to prevent diffusion from and into the capillaries. (e.g. with usage
of gold coated diaphragm surface for high temperature applications and presence of H2).
• Seal & gasket materials shall be able to endure the operational pressure and temperature in case of
the failure of the diaphragm or other pressure-holding component.
3. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Signal range, measuring range, scale data and accuracy requirements”.
4. The instrument shall be designed to provide full protection for the operating personnel even in case of
failures.
5. Pressure-holding components shall have confined seals (tongue-and-groove or O-ring).
6. The differential pressure measuring instruments shall endure overloads 100 barg (even from one side) but
at least equal to 1.3 times of their upper measurement limits or nominal static pressure. It is also requested
that the overload described above shall not case zero offsets exceeding 1% of the measuring range.
7. The pressure rating of the instrument shall be PN100 or equal to 125% of the design pressure. If it is not
specified otherwise on the datasheet, the greater value shall be selected
8. The measuring element shall be appropriately flexible, tempered and stress-relieved to ensure minimal
hysteresis.
9. The effect of ambient temperature shall be minimised for every measuring element. The measuring
element shall have a minimal thermal expansion coefficient.
10. The measurement limit (span) shall be adjustable continuously in the whole range and the setting device
shall be lockable. Instruments with wide range shift and measurement limit reduction, and zero shift and
suppression capabilities are preferred.

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11. Manifolds shall be specified in every case for differential pressure instruments. Three-way or five-way
manifold connected directly to the transmitter shall be applied.
12. The instruments shall have integral over-voltage protection.

2.2 Installation and cabling

1. Accessibility and ease of handling shall be considered in selecting the place of installation of the differential
pressure instruments and differential pressure taps in the process system.
2. The local zero setting and adjustment of differential pressure instruments shall be provided by the proper
design of hook-up lines.
3. For high-pressure applications (above 45 bar) double block valve shall be used in hook-up lines.
4. Means shall be provided for the checking and adjustment of differential pressure switches without removing
the instruments.
5. Means shall be provided for venting/drainage all differential pressure measuring instruments during
operation, as well as for the zero adjustment of the installed instruments and the connection of calibration
instruments without disconnecting valves or piping lines, by installing a three-way or five-way manifold
valve between the isolating valve of the pressure tap and the measuring instrument.
6. Pressure taps complete with NPT 1/2” or 3/4” female threaded or socket-weld block valves shall be
installed for differential pressure measuring instruments on the process system if not specified otherwise.
7. Pressure measuring devices shall be installed below the pressure taps for liquid and above the pressure
taps for gas and incondensable vapour services. Valves and pipes with minimum ½” sizes hall be used for
draining or venting. For steam service hook-up line shall be oriented upwards and contain syphon to
provide protection for the element.
8. For the measurement of fluctuating differential pressures pulsation dampers shall be installed before the
sensor instrument. Such pulsation dampers shall be adjustable from the outside.
9. Cabling requirements: see app.
10. For armouring cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour.
11. The instrument case shall be connected to the equipotential (EPH) earth system of the plant.

2.3 Special applications

1. If the differential pressure instrument is used for flow measurement, the low limit of the flow shall not be
less than 30% of the flow rate equal to the upper measurement limit of the differential pressure instrument.
2. Differential pressure transmitters – except for transmitters used in level measurement -– shall provide
increasing output signals at increasing input signals (i.e. be direct action type instruments).
3. In case diaphragm seal is required, it shall be integral with the instrument and calibrated together with it.
The bottom shall be removable for cleaning purposes.
4. Capillary lines shall be filled with neutral anti-freeze pressure-transmitting liquid, suitable for the particular
process fluid temperature, and the instrument shall be calibrated together with the sensor. The capillary
shall be made of stainless steel tubing with flexible protective cover and its length shall be the shortest
possible but never exceed 10 meters.
5. If sensor elements with separating diaphragm are used, provisions shall be made for their cleaning when
justified.

2.4 Differential pressure gauges

1. The measuring mechanism, body and case of local pressure gauges shall be made of stainless steel.
2. Pressure gauges with Bourdon tube or membrane element shall be used for direct measurement, and
bellows type for indirect measurements.
3. The local pressure gages shall have over-pressure protection indicator dial shall be provided for both direct
and indirect pressure measurements.
4. At places exposed to vibration liquid fill shall be applied.
5. Process connections shall be at the bottom, G½” or M20x1.5 mm size. For flush mounting the connection
shall be at the back.
6. For pressure gauges without measurement range compression, the operating range shall be between
30…70% of the measuring range of the gauge.
7. The reference accuracy of local pressure gages shall be less than ±1.5% of span.

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8. Pressure gauges that are accessories of other equipment (e.g. positioner, filter, controller, etc.) shall
conform to vendor standards. The dial diameter of these instruments shall be at least 60 mm.
9. For congealing or aggressive medium applications pressure gauge with diaphragm seal shall be applied.
10. The local pressure gauges shall be connected to the technological part via isolating valves (mechanical
part) and via five way valve manifold.

2.5 Differential pressure switches

1. Differential pressure switches shall be used if there is no other pressure sensor in the vicinity or critical
shut-down and/or alarm functions have to be implemented.
2. Proximity switches or sealed gold coated airtight SPDT micro switches with oxidation proof contacts shall
be used as pressure switches

2.6 Transmitters
1. The signal processing instruments shall provide independent analogue and HART, or Foundation Fieldbus
output proportional to the pressure, that can be connected to an external data acquisition equipment
2. The output signals shall not contain the effects of the mechanical or hydraulic disturbances of the process
system (the transmitter shall have integral digital filters, output signal limit monitoring electronics, etc.).
3. The instrument shall monitor itself continuously during its operation, generate transmitter failure alarms (as
values specific to DCS or ESD systems), include HART or FF based communication and communicate
event information to the field instrument maintenance (FIMS) system
4. The differential pressure measuring instruments shall have integral dial indicators ensuring appropriate
readability of the actual value with engineering or SI unit. The integral indicator shall provide a reading of
the physical value of the measured parameter and show the unit of measure. If there is no integral
indicator, a local indicator shall be installed in the close proximity of the transmitter.
5. The transmitter and the separately installed dial indicators shall have mounting yokes.

2.7 Nameplate
All differential pressure sensors and transmitters shall be provided with durable nameplates easily readable during
operation even if the equipment is insulated.
Nameplates shall contain at least the following information:
• Name of the manufacturer
• Model number and serial number of the differential pressure sensor and transmitter
• Symbol of protection class
• Nominal size and pressure rating of outdoors differential pressure sensors
• Measuring range of differential pressure sensors and transmitters
• ID number (tag) of differential pressure sensors and transmitters
• Length of capillary tubes, data of filling liquid
• Set-point in the case of differential pressure switches

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Pressure transmitter shall have plugged impulse line detection capability.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction

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 SLOVNAFT a.s. MGS-S-REF-I-5.3
R&M Division

o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix
3.1: Installation and cabling
Ad.9: Cable requirements
The cables of the differential pressure instruments shall be stranded, twisted pair and shielded against
interference. Armoured cables shall be applied in necessary.

4: Datasheet to be provided for MMS (maintenance management system): N/A

8/11 Rev 1.00.01

 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.3
1.00.02 Project No:
Specifications for instrumentation items 1.00.01 Page: 9/11
Designer Diff. Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Differential pressure transmitter Rev Date Design. Date: 30.11.2011
1 Function Area Classification Differential Presssure Transmitter Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Elec. housing mat. Cast Alloy -
5 Enclosure min. IP65
6 Explosion Proof EEx ib IIC T3 -
GENERAL
7 Transient Protector Built in
8 Mounting On 2" pipe with yoke
9 See prim. Elem. Spec. P2005-I.-2-IC-A1/4
10 See second. Instr. Spec. -
11 Ambient Temperature -25...+45 °C
12
13 Supply Loop powered
14 Output Signal Comm. 4...20 mA HART
15 Signal out charact. Linear
16 at increased input signal Output signal is increasing
17 Failure mode alarm Output signal < 3,75 mA
18 Respons time Update time 100 msec 50 msec
19 Physical Layer Type - -
20 Voltage expected Current draw - -
TRANSMITTER 21 Function Blocks Other Blocks - -
22 Diagnostic blocks -
23 Other requirement -
24 Output Gage Digital Eng. Unit, linear Adjustable
25 Accuracy < 0,1% of span
26 Turn Down Ratio min. 50:1 -
27 Local Span and Zero Yes
28 Stability < 0,2% URL for 12 months
29 Conduit Connection for signal with Cable gland *
30 Element Type Service Diaphragm Diff. Pressure
31 Element Mat. 316 SST
32 Wetted parts material SST
33 Fill fluid silicon oil
ELEMENT 34 Overr. Rating Body Rating min. 2,1 MPa min. 2,1 Mpa
35 Process Connection For flange adaptors (DIN 19213)
36 Connection Size 1/2"-14 NPT (Female)
37 Flange Mat. Connection SST Oldalt / Side
38
39 Manufacturer Model . .
DIAPHRAGM 40 Connection Size - - - -
SEAL 41 Capillary Lenght Material - - -
42 Fill fluid -
43 Valve Manifold Material 3 way manifold 316 SST
44 Counter Flange and Seal 2 pcs flange adaptor bolts and seal
OPTIONS
45 Compensation .
46 .
Notes:
SRequired documentation: 1,2,3,4,5,8,12,15
1.,Gold plated diaphragm
* Double compression type cable gland

No Tag No. P&I No. Service Fluid Pipe Line No. Max. Pres. Max. Temp. Adj. Range Set Range Note
P2005-ED- MPag °C Mpa Mpa
hydrog 150-P1018- H2 service
1. FT 001 R104/4 306 circ. Gas 2,5 55 MFR 0-23
en C40
2.

3.

4.

5.

6.

7.

8.
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.3
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 10/11
Diff. Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Differential pressure switch Rev Date Design. Date: 30.11.2011
1 Function Area Classification Differential Presssure switch Zone 1 IIC T4 Rev.:
2 Manufacturer *
3 Model *
4 Construction Type By Manufacturer
5 Elec. housing mat. Enclosure Cast Alloy min. IP65
GENERAL 6 Explosion Proof EEx ib IIC T4
7 Transient Protector In built
8 Mounting On 2" pipe with yoke
9 See second. Instr. Spec. 98006-I.-6-IA-M1/12
10 Ambient Temperature -25...+45 °C
11 .
12 Element Type Service Diaphragm Diff. Pressure
13 Element Mat. 316 SST
14 Wetted parts material SST
15 Fill fluid silicon oil
ELEMENT 16 Overr. Rating Body Rating min. 210 bar min. 210 bar
17 Process Connection For flange adaptors (DIN 19213)
18 Connection Size 1/2"-14 NPT (Female)
19 Flange Materal Connection SST Side
20
21 Tag Number Function .
22 Manufacturer Model . .
23 Location Mounting In head of switch .
24 Supply Accuracy No < 0,5%
25 Switching point adjustable Inside
26 Switches On Increases signal
SWITCHES
27 Output Signal Connection Voltage free Terminal board
28 Switches load Surface 10 mA Gold plated
29 Hermetically seald Switches Yes
30 Dead Band Adjustable
31 Line fault detection outside Open circuit if I<100microA / Short circuit if I<6,5mA
32
33 Manufacturer Model . .
DIAPHRAGM 34 Connection Size DN50 Flanged PN40 / DIN 2635 DIN 2526 Form E
SEAL 35 Capillary Lenght Material 5m SST
36 Fill fluid silicon oil
37 Valve Manifold Material 3 way manifold 316 SST
38 Counter Flange and Seal 2 pcs flange adaptor bolts and seal
OPTIONS 39 Compensation .
40 Conduit Connection for signal with Cable gland *
41 .
Notes:
Required documentation: 1,2,3,4,5,8
* Double compression type cable gland

No Tag No. P&I No. Service Fluid Pipe Line No. Max. Pres. Max. Temp. Adj. Range Set Range Note
98006-I-6-PI MPag °C MPag MPag
100-640123-
1. PDSH 002 003 W102/1 outlet Gasoil 1 120 0-0,6 0,35 87% H2 cont.
104-x
2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.3
1.00.02 Project No:
Specifications for instrumentation items 1.00.01 Page: 11/11
Designer Diff. Pressure measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Differential pressure transmitter (FFB) Rev Date Design. Date: 30.11.2011
1 Function Area Classification Differential Presssure Transmitter Zone 1 IIC T3 Rev.:
2 Manufacturer *
3 Model *
4 Elec. housing mat. Cast Alloy -
5 Enclosure IP65
6 Explosion Proof EEx ib IIC T3
GENERAL
7 Transient Protector Built in
8 Mounting On 2" pipe with yoke
9 See prim. Elem. Spec. -
10 See second. Instr. Spec. -
11 Ambient Temperature -25...+45 °C
12
13 Supply Bus powered
14 Output Signal Communication - Foundation Field Bus - H1
15 Signal out charact. -
16 at increased input signal Output signal is increasing
17 Respons time 20 msec
18 Failure mode alarm -
TRANSMITTER
19 Output Gage Digital Eng. Unit, linear Adjustable
20 Accuracy < 0,1% of span
21 Turn Down Ratio 100:1 -
22 Local Span and Zero Yes
23 Stability < 0,2% URL for 12 months
24 Conduit Connection for signal with Cable glande **
25 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
26 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
27 Function Blocks Other Blocks AI1, AI2, PID -
28 Diagnostic Information Yes
FOUNDATION
FIELD BUS H1***
29 LAS function Polarity Sensitive Yes No
30 Channel number and description
31 Other requirement
32 IS parameters for field device, max. internal Ci, Ii *
33 Max input Voltage Ui / Current Ii Max Input Power Pi * *
34 Element Type Service Diaphragm Diff. Pressure
35 Element Mat. SST
36 Wetted parts material SST
37 Fill fluid silicon oil
ELEMENT 38 Overr. Rating Body Rating min. 210 bar min. 210 bar
39 Process Connection For flange adaptors (DIN 19213)
40 Connection Size 1/2"-14 NPT (Female)
41 Flange Mat. Connection SST Side
42
43 Manufacturer Model . .
44 Connection Size - - - -
DIAPHRAGM SEAL
45 Capillary Lenght Material - - -
46 Fill fluid -
47 Csaptelep / Valve Manifold Material 3 way manifold Side
48 Counter Flange and Seal 22 pcs flange adaptor bolts and seal
OPTIONS
49 Compensation .
50 .
Notes:
Required documentation: 1,2,3,4,5,6,8,13,15 1: Gold plated diaphragm
*: To be filled by Vendor. 2: NACE Certificate required. (MR0175-2002)
**: Double compression type cable glande for OD 9-11,5 cable
***: The DEV, DD and CF service revision level must also be give.
Operat

Operat
Design

Design
ing

ing

No Tag No. P&I No. Service Fluid Pipe Line No. Adj. Range Set Range Note
pres. kPag temp. °C kPa kPa
8"-PG-21103-
1. KPDT-1411 P3 Across F-101-AB Gasoil
D24-HC 520 1950 103 225 20-2070 0-500 -
hcar. 6"-PR-10707-
2. KPDT 1456 P10 Across R-102 6850 8100 77 435 20-2070 0-500 Note 1
circ. G44-PP
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation

4. Flow measuring instruments

MGS-S-REF-I-5.4

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.00
5 Specification sheets for instrumentation Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/4

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 General issue Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4
R&M Division

Contents

Release list ................................................................................................................................................................... 2

Book breakdown ........................................................................................................................................................... 4

Rev 1.00.01 3/4

 SLOVNAFT a.s. MGS-S-REF-I-5.4
R&M Division

Book breakdown

Description Identifier Rev.:

Flow measuring instruments MGS-S-REF-I-5.4 1.00.01
Restriction-type flow measuring instruments MGS-S-REF-I-5.4.1 1.00.01
Vortex-type flow measuring instruments MGS-S-REF-I-5.4.2 1.00.01
Coriolis Mass flowmeters MGS-S-REF-I-5.4.3 1.00.01
Annubar-type flow measuring instruments MGS-S-REF-I-5.4.4 1.00.01
Turbine-type flow measuring instruments MGS-S-REF-I-5.4.5 1.00.01
Ultrasonic-type flow measuring instruments MGS-S-REF-I-5.4.6 1.00.01
Inductive-type flow measuring instruments MGS-S-REF-I-5.4.7 1.00.01
Rota meter-type flow measuring instruments MGS-S-REF-I-5.4.8 1.00.01
Positive displacement flow measuring instruments MGS-S-REF-I-5.4.9 1.00.01
Thermal dispersion-type flow measuring instruments MGS-S-REF-I-5.4.10 1.00.01

4/4 Rev 1.00.01

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION
5. Specification sheets for instrumentation items
4. Flow measuring instruments
1. Restriction-type flow measuring instruments

MGS-S-REF-I-5.4.1

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
1 Restriction-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 27.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 11.11.2010 General review Zuzana Stanová Zuzana Stanová
1.00.00 30.11.2011 General issue Zuzana Stanová Zuzana Stanová
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Applicable codes & standards ...................................................................................................................... 5
2 Types and Applications ......................................................................................................................................... 5
2.1 General applications ..................................................................................................................................... 5
2.2 Special Applications ...................................................................................................................................... 5
3 General Requirements .......................................................................................................................................... 5
4 Parts to be supplied as orifice plate assemblies ................................................................................................... 7
5 Transmitter diagnostics ......................................................................................................................................... 7
6 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
7 Appendix ................................................................................................................................................................ 7

Restriction-type flow measuring specification sheet (sample)...................................................................................... 9

Rev 1.00.01 3/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Instruction/maintenance manual with contents also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to EN 60751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (EN 61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to EN 61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/9 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

RESTRICTION-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the requirements regarding restriction-type flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.

1.2 Applicable codes & standards

See App.

2 Types and Applications

All restriction type flow meters shall be made according to the relevant standards for general use within the
standard application restrictions.

2.1 General applications

Generally Concentric Sharp Edged Orifice Plates shall be used.

2.2 Special Applications

2.2.1. Symmetrical orifice plates may be used only in import/export applications.
2.2.2. Quadrant edged orifice plates shall be used for e.g. high viscosity liquids.
2.2.3. Eccentric orifice plates can be used for measuring two-phase liquids. They can only be installed in
horizontal pipelines. The eccentric type orifice plate shall have the bottom of orifice bore approximately
0,01 times the pipe’s inside diameter (D) above the bottom inside wall of the pipe.
2.2.4. Integral type orifice plates shall be used under DN50 diameter.
2.2.5. Venturi tubes or venturi nozzles can be used for measurements with very small allowable remaining
pressure losses.

3 General Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The orifice plates shall have a design that ensures easy centreing, removal and installation without the use
of special tools (for checking).
3. The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.
4. The material of the flanges and their accessories on the two side of the orifice plate shall conform to
application in hydrocarbon service. Min. 25 barg pressure shall be considered as the designed pressure.
The datasheet may specify a different value.
5. The orifice plate shall be made of at least SST 316 stainless steel unless the datasheet specifies otherwise
6. The orifice plates shall be designed, produced, installed and operated according to the standards and
requirements set forth in EN ISO 5167-1 and EN ISO 5167-2. The only deviation from these standards is
that the acceptable beta = d/D ratio may be 0.3-0.7. Client prefers 250 mbar differential pressure range.
7. The minimal upstream and downstream straight lengths between various fittings and the orifice plate shall
be implemented according to the relevant standards. Complete meter runs (including upstream &
downstream pipe) is purchased only in special cases (for e.g. In custody transfer measurements).
Generally the proper design of the process pipes shall provide the conformity to the minimum upstream
and downstream lengths.
8. Primarily flange taps shall be used at the orifice plates (for line sizes DN50…DN500). Individual bored taps
in pipes may also be used if the customer or its representative approves it (for line sizes
DN500…DN1000). Ring chamber design shall not be used.
9. Construction: see App.

Rev 1.00.01 5/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

10. Generally differential pressure type flow meters (e.g. Venturi tube, orifice plate, etc.) shall be installed in
horizontal lines. Vertical installation is not recommended. In case where there is no possibility to install the
orifice plate in a horizontal line, it can be installed in vertical lines in which liquids flow upwards and gases
flow downwards through the orifice plate.
11. Orifice plates with 25 mm or larger holes (d) shall be provided with a weep hole. The weep hole shall be
arranged at the top for liquid measurements (vent hole) and at the bottom for gas measurements (drain
hole).
12. The orifice plate shall have a tab protruding outside the flange, indicating the following data on the
upstream side:
• Bore size (d)
• Inside diameter of the pipe (D)
• Material of the orifice plate
• ID number (tag) of the orifice plate
• Flow direction
13. The measurement range of the flow meter shall be 1.05...1.1 times of the maximum flow.
14. The differential pressure transmitter shall be located below the pressure taps for liquid, steam and
condensable vapour service and above for gas and vapour service. In case of steam measurements,
condensation pots shall be installed. The impulse line between the transmitter and the condensation pot
must be completely filled with water.
15. Pressure tap orientation shall be implemented according to the followings:
Gases, vapours and steam

In case of gases, vapours, position H,G and F recommended,

A and E allowed. Other arrangements are not allowed.

In case of steam, position A and E recommended,

H; G and F allowed. Other arrangements are not allowed

All impulse pipes must be installed with a slope of 10% to the process connection - coming from the
transmitter.

Liquids

In case of liquids, position B and D recommended,

position A,C,E allowed. Other arrangements are not
allowed.

All impulse pipes must be installed with a slope of 10% to the transmitter - coming from the process
connection.
16. The transmitter shall be placed as close to the pressure taps as possible. The preferred maximum length of
hook-up lines is 1.5 meters.
17. Gate valves shall be used as first isolating valve to ensure the possibility of cleaning.
18. In case of high viscosity and/or high solid content mediums two possible solutions shall be considered:
• Diaphragm seal type transmitter
• Use of gas or fluid purging

6/9 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

4 Parts to be supplied as orifice plate assemblies

Description Quantity
Orifice plate 1
Washing plate 1
Flanges with standard bolt holes 2
1/2" gate valves 2
Intermediate nipples 2
Spiral-wound gaskets 2 + 2 spares
Adjusting screws 1 set
Bolts and nuts 1 set
Threaded plugs 2

5 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Diff.pressure transmitter shall have plugged impulse line detection capability.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

6 Datasheet to be provided for MMS (maintenance management system):

See app.

7 Appendix
1.2: Applicable codes & standards:
acc. to appendix MGS-S-REF-I-4 App.

Rev 1.00.01 7/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.1
R&M Division

3: General requirements
ad 9: Construction:
The orifice plates shall have two taps with NPT ½” socked weld or flange manual gate valves.

6: General requirements Datasheet to be provided for MMS (maintenance management

system): N/A

8/9 Rev 1.00.01

 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.4.1
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 8/8
Flow measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Restriction-type flow measuring instrument Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change FE 001 New Rev.:
2 Service V4 reflux
GENERAL 3 Line No. Line Size 80-P4007-C25 DN 80
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R102/2
5 Flow no. Pipe Class 42A C25
6 Process Fluid State LPG Liquid Liquid
Units Max. Norm. Min.
7 Flow Rate
kg/h 16 000 8 030 5 500
8 Inlet Pressure bar-a 20,5 15 -
9 Inlet Temperature °C - 40 .
10 Operating Density kg/m3 - 544 .
11 Normal Density kg/m3 - -
12 Inlet Viscosity cP - 0,133 .
PROCESS
CONDITIONS
13 Inlet Compressibility Factor - . . .
14 Inlet Specific Heats Ratio - . - .
15 Mol Weight Specific gravity 55,8 .
16 Inlet Vapor Pressure Critacal Pressure bar-a 10,1 42
17 Solids Type % - .
18 Flashing Superheat % - -
19 Allow. Pressure Drop bar -
20 Design range: °C 40 bar-g 22
21
22 Manufacturer Model - .
23 End Connection & Rating DN80 Weld. PN25 EN 1092-1 B1
MEASURING
SECTION
24 Lenght before orifice Full lenght mm 800 1200
25 Inside diameter Wall thickness mm * **
26 Pipe Material Flange Material St.37.0 -
27 Manufacturer Model - .
28 End Connection & Rating DN80 Flanged PN25 EN 1092-1 B1
29 Flange Mat. KL7D -
30 Pressure taps style Style Flange 1/2" NPT M
ORIFICE FLANGE
31 Flanges is included Yes
32 Measuring section is included Yes
33 Integral orifice meter No
34 See transmitter specifications P2005-I.-2-IC-A1/3
35 Manufacturer Model - .
36 Standard STN ISO 5167 .
37 Contstruction Type Square edged Concentric
38 Plate thickness Material See note *** 316 SST
39 Vent or Drain Hole Size Vent 2,5***
40 Diff. Range Beta Ratio=d/D mbar 360* 0,5372*
ORIFICE PLATE
41 Orifice bore diameter mm 41,25* .
42 Inside diameter mm DN 80**
43 Wall thickness mm **
44 Scale m3/h 0-35
45 Pressure taps position Side, one side, 90 ° from perpendicular
46 Spare pressure taps position 180 ° from pressure taps
47 Cleaning plate with 2 teflon gask. 1 set
48 1/2" Socket weld gate valve 2 pcs
49 1/2" NPT F thresded plug 2 pcs
50 Interm. nipples with diff. lenght 2 pcs
ACCESSORIES 51 Gaskets .
52 Spiral wound gaskets 2 pcs + 2 pcs spare
53 Adjusting screw 2 pcs
54 Bolts 1 set
55 Gaskets, O ring .
Notes:
Required documentation: 1,2,3,4,7,11

*., Preliminary calculations.

**., To be finalised before ordering
***., According to standard and MOL DF internal regulation
1., Calc. data sheet is to be attached.The size of Weep Hole is to be incl.
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
2. Vortex-type flow measuring instruments

MGS-S-REF-I-5.4.2

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.2
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
2 Vortex-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.2
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 6
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Vortex flow meter specification sheet (sample) ............................................................................................................ 8

Vortex flow meter (FFB) specification sheet (sample).................................................................................................. 9

Rev 1.00.01 3/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.2
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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VORTEX-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding vortex-type flow measuring instruments
installed in production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorisation of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-M-REF-I-4: “Site conditions and required protection classes.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 & MGS-S-REF-I-4 App.

1.4 Accuracy
1. The accuracy of the measuring instrument shall reach min. ±1.5% of the measured value for gases and
±1% for liquids in the measuring range specified on the data sheet.
2. Turn-down Ratio shall be better than 10:1.
3. Long term stability shall be better than ±0.1% for one year.
4. The repeatability shall be better than ±0.25% of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-M-REF-I-4: “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification.
The vortex flow meters shall conform to the requirements set forth in the relevant standards.
4. The instrument shall produce the specified parameters even in case of wet gases and wet steam & vapour,
and gases with small particles, with the following restrictions:
• Condensate in steam/vapour <4 weight%
• Small particles in gas <1 weight%
5. The measuring range of the vortex flow meter shall be selected to equal at least 130% of the specified flow.
6. The output signal shall be linear to the flowing volume in the whole range.
7. Vendor shall attach the calculation sheet to the bid. In case of measurement of flows with pressure or
temperature compensation, the calculation shall be made for maximum volumetric flow, maximum
temperature and minimum pressure.
8. The vortex flow meters shall be calibrated for the operating conditions specified on the data sheet
(pressure, temperature, viscosity, etc.), and the calibration curve shall be attached to the instrument
delivered in case of custody measurements (subject to excise laws).
9. The diameter of the instrument case and the design of the shedder bar shall provide a pressure loss not
exceeding the value allowed by the process. The maximum permissible pressure loss across the
instrument will be specified on the relevant instrument specification sheets.
10. The body of the vortex flow meters and other wetted parts shall be made of materials that are appropriate
for use in hydrocarbon service. The body shall be made of cast steel at least, and min. 25 barg shall be
considered as the pressure rating.
11. All wetted parts shall be made of 316 SST stainless steel at least if the process medium does not dictate
another quality.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.2
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12. The instrument cases shall have flanged connections. The direction of the flow shall be indicated on the
case.
13. The instructions of the manufacturer (required straight pipe lengths upstream and downstream, flow
straightener, etc.) shall be followed in the use of the instrument.
14. The explosion-proof protection of transmitters used for vortex flow meters shall be: intrinsically safe, unless
specified otherwise on datasheets.
15. The instruments shall have integral over-voltage protection.
16. For armouring cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour (when
armoured cables are used.
17. The instrument case shall be connected to the equipotential earth system of the plant.

2.1 Signal processing instruments

• The signal processing instruments shall provide the followings:
o analogue or digital display of the actual value in engineering or SI unit
o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall not contain the effects of the mechanical or hydraulic disturbances of the
process system (the transmitter shall have integral digital filters, output signal limit monitoring
electronics, etc.).

2.2 Nameplate
All instruments shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the instrument, transmitter
• Symbol of protection class
• Nominal size and pressure rating of the instrument
• Measuring range of the instrument
• ID (tag) number of the instrument

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits

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o Non-primary variable out of limits

o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/9

 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.2
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 8/9
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Vortex Flow Meter Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change FT 005 New Rev.:
2 Service 600 kPa - Nitrogen
GENERAL 3 Line No. Line Size 80-UN7302-BPE21-V DN 80
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R110/10
5 Flow No. Pipeline class - BPE21
6 Process Fluid State Nitrogen gas
7 Flow Rate Units Max. Norm. Min.
Nm3/h 500 300 180
8 Inlet Pressure kPa-g - 600 -
9 Inlet Temperature °C - Ambient .
10 Oper. Density kg/m3 - - .
11 Norm. Density Base data kg/m3 - -
12 Inlet Viscosity cP - 0,0188 .
13 Inlet Compressibility Factor - . 1,00 .
PROCESS
CONDITIONS 14 Inlet Specific Heats Ratio, cp/cv - . 1,4 .
15 Mol Weight Specific gravity 28,02 0,97
16 Inlet Vap. Pr. Critacal Pr. MPa-a - 3,4
17 Solids Type % - .
18 Flush up Superheat % - -
19 Allow. Pressure Drop bar 0,2
20 Design range: °C 30 kPa-g 600
21 Base data 101,325 kPa, 0 °C .
22
23 Manufacturer Model . * *
24 Max. Scale Scale Nm3/h * 0-600
25 End Conn. & Rating DN 80 Flanged PN40 EN 1092-1 B1
26 Body Material Flange Mat. 316 SST 316 SST
27 Sedder Bar material Hastelloy C
METER 28 Gasket material By Manufacturer
29 Sensor type Piezzoelectric
30 Supply -
31 Conduit Conn. Spec. Cable - -
33 Flow Rectifier -
34 Tag Number Function - Transmitting
35 Location Sensor mount -
36 Felszerelés / Mounting -
37 Supply Loop powered
38 Output Signal Comm. 4...20 mA HART
39 Signal out charact. linear
40 at increased input signal Output signal is increasing
41 Failure mode alarm Output signal < 3,75 mA
42 Physical Layer Type -
43 Voltage expected Current draw - -
44 Function Blocks Other Blocks - -
TRANSMITTER 45 Diagnostic Information -
46 Other requirement -
47 Output Gage Digital Eng. Unit, linear Adjustable
48 Turn Down Ratio min. 20:1 -
49 Local Span and Zero Yes
50 Transient Protector In built
51 Explosion Proof Enclosure EEx ia IIC T3 min. IP65
52 Ambient Temperature -25...+45 °C
53 Conduit Connection to meter In built
54 Conduit Connection with Cable gland **
55 Accuracy < 1,4% of rate
56
57 See second. Instr. Spec. -
58 Compensation -
OPTIONS
59
60

Notes:
Required documentation: 1,2,3,4,5,7,8,11,12,15
* To be filled by vendor.
** Double compression type cable gland
1.,Calc. data sheet is to be attached.
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.2
1.00.02 o
- - Project N :
Specifications for instrumentation items 1.00.01 - - Page: 9/9
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Vortex Flow Meter (FFB) Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change FT 1071 New Rev.:
2 Service Make Up Hydrogen from BL
GENERAL 3 Line No. Line Size 6"-PH-30201-D24 6"
4 Area Class. P & I D No. Zone 1 IIC T3 P14
5 Flow No. Pipeline class - D24
6 Process Fluid State Hydrogen Make up gas
7 Flow Rate Units Sizing Max. Norm. Min.
3
Nm /h 29 000 25 767 25 750 10 400
8 Inlet Pressure MPa-g - 3 -
9 Inlet Temperature °C - 20 .
3
10 Oper. Density kg/m - 2,5 .
3
11 Norm. Density Base data kg/m - -
12 Inlet Viscosity cP - 0,01 .
13 Inlet Compressibility Factor - . 1,02 .
PROCESS
CONDITIONS 14 Inlet Specific Heats Ratio, cp/cv - . 1,41 .
15 Mol Weight Specific gravity 2,03 -
16 Inlet Vap. Pr. Critacal Pr. kPa-a - -
17 Solids Type % - .
18 Flush up Superheat % - -
19 Allow. Pressure Drop kPa-a 25
20 Design range: °C 100 MPa-g 3,8
21 Base data 101,325 kPa, 0 °C .
22
23 Manufacturer Model * *
24 Max. Scale Scale Nm3/h * 0-29 000
25 End Conn. & Rating * Flanged ANSI Class 300 #, RF
26 Body Material Flange Mat. 316 SST 316 SST
27 Sedder Bar material Hastelloy C
METER 28 Gasket material By Manufacturer
29 Sensor type Piezzoelectric
30 Supply - *
31 Conduit Conn. Spec. Cable - -
32 Flow Rectifier -
33 Tag Number - -
34 Location Sensor mount -
35 Supply Bus Powered
36 Output Signal Comm. - Fundation Field Bus - H1
37 Signal out charact. -
38 at increased input signal Output signal is increasing
39 Failure mode alarm -
40 Output Gage Digital Eng. Unit, linear Adjustable
TRANSMITTER 41 Turn Down Ratio min. 20:1 -
42 Local Span and Zero Yes
43 Transient Protector In built
44 Explosion Proof Enclosure EEx ia IIC T3 IP65
45 Ambient Temperature -25...+45 °C
46 Conduit Connection to meter In built
47 Conduit Connection with Cable gland **
48 Accuracy < 1,4% of rate
49
50 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
51 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
52 Function Blocks Other Blocks AI PID
53 Diagnostic Information Yes
FOUNDATIION
FIELBUS H1***
54 LAS function Polarity Sensitive Yes No
55 Channel number and description
56 Other requirement
57 IS Parameters for field device, max. internal Ci, Li *
58 Current Ii Max. Input Power Pi * *
59 See second. Instr. Spec. -
OPTIONS 60 Compensation Density, Temperature and Pressure
61

Notes:
Required documentation: 1,2,3,4,5,6,7,8,11,13,15
* To be filled by vendor.
** Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give.

1., Calc. data sheet is to be attached.

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
3. Coriolis type mass flow measuring instruments

MGS-S-REF-I-5.4.3

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.3
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
3 Coriolis type mass flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 20.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 18.08.2011 General review M. Gál I. Kovács
1.00.00 30.11.2011 General issue M. Gál Zuzana
Stanová
1.00.01 31.01.2014 General review Zuzana Pavol
Stanová Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.3
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 General Requirements .................................................................................................................................. 5
2.2 Measuring tube selection criteria .................................................................................................................. 6
2.3 Installation ..................................................................................................................................................... 6
2.4 Transmitter: ................................................................................................................................................... 6
2.5 Nameplate..................................................................................................................................................... 7
3 Transmitter diagnostics ......................................................................................................................................... 7
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Coriolis type mass flow measuring instruments specification sheet (sample) .......................................................... 8
Coriolis type mass flow measuring instruments (FFB) specification sheet (sample)................................................ 9

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.3
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REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.3
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CORIOLIS TYPE MASS FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding Coriolis mass flow meters installed in
production facilities. The mass flow meters shall conform to the requirements set forth in the relevant standards,
and to all mechanical and process requirements.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.

1.2 Protection
The explosion-protection and IP protection of the instrument shall meet
the requirements of Section MGS-M-REF-I-4 & MGS-S-REF-I-4: “Site conditions and required protection classes”.
The instrument shall conform to the requirements and specifications set by hazardous area classification.
The explosion-proof protection of transmitters used for mass flow meters shall be flame-proof (Ex d) in general, the
sensor intrinsically safe (Ex ia).

1.3 Applicable codes & standards

According to MGS-M-REF-I-4 & MGS-S-REF-I-4

1.4 Accuracy
1. The accuracy of the flow measuring instrument shall reach ±0.2% of the measured value for liquids and
±0.6% for gases in the measuring range specified on the data sheet for flow measurement applications.
2. The accuracy of density readings shall reach 0.5 kg/m3 for liquids
3. Long term stability shall be better than ±0.1% for one year.
4. The repeatability shall be better than ±0.08% of span for liquids and ±0.3% for gases in general.

2 Technical Requirements
2.1 General Requirements
1. The specified materials shall match the pipe class specification system, standards and requirements of the
project, and be appropriate for use in hydrocarbon service.
a. The body shall be made of cast steel at least, and min. 25 barg shall be considered as the pressure
rating.
b. All wetted parts shall be made of stainless steel as a minimum.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Signal range, measuring range, scale data, accuracy requirements”.
3. Pressure compensation shall be applied if the error caused by operating pressure fluctuation violates the
accuracy requirement.
4. The measuring range of the mass flow meter shall be selected so as to equal at least 125% of the specified
flow and the measured maximum value to be within the error limit.
5. The output signal shall change linearly with volumetric flow rate, density and with temperature in the whole
range.
6. The mass flow meters shall be calibrated for water
7. If measured material is liable to plug or coagulate, or has high viscosity then the instrument shall be
jacketed for steam tracing. In the case of electric heat tracing, electrically heated jacket is sufficient.
8. The instrument shall have flanged connections. The direction of the flow shall be clearly indicated on the
case except in case of bi-directional type.
9. The instruments shall have integral over-voltage protection according to MGS-M-REF-I-4 & MGS-S-REF-I-
4.
10. The instrument case shall have equipotential earth connection point.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.3
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11. Coriolis Mass Flow meters shall not be applied for steam measurement

2.2 Measuring tube selection criteria

Dual-tube, bent (Ω or U) tube meters shall be applied for all cases. For use of different tube types - with
consideration of terms listed below - written approval of MOL Group is required:
• Single-tube meters can only be applied
o if the fluid trends to plugging
o for two-phase (solid/liquid) flow
• Straight or fairly straight tube type can be applied in case of
o cleaning or fluid handling has increased importance
o compact design is needed as low space is available for instrument
• If fluid is erosive, single-tube straight type Coriolis mass flowmeters shall be applied
• Straight tube type Coriolis mass flowmeters can be applied only below 150°C process temperature,
and tube material shall use titanium or zirconium.
• Straight tube type Coriolis mass flowmeters shall not be applied for gas measurement.
• The diameter and the design of the instrument tube shall provide pressure losses not exceeding the
value allowed by the process. The maximum permitted pressure loss across the instrument will be
specified on the relevant instrument specification sheets.

2.3 Installation
1. Coriolis Mass Flowmeters shall be installed as far from mechanical and hydraulic vibrations as possible.
2. In case of instruments installed in parallel, the manufacturer’s instructions shall be followed to avoid the
effect of the instruments’ vibration on one another.
3. The Coriolis mass flowmeter shall be installed in the process system so that the medium to be measured
can be isolated at operating pressure and temperature together with the valves for zero setting” and
checking purposes.
4. The orientation should be vertical with an upward flow direction to keep the measuring tube full of the
process fluid.
5. In case of gas measurement the tube should not contain any liquid droplets. Mixtures of gas and liquid
should be avoided by technological provisions.
6. In case of liquid measurement, the instrument should not be installed at the highest point of the pipeline to
avoid accumulation of gas in flow meter.
7. If bent measuring tubes can only be installed horizontally then orientation should be adapted to the fluid
type, to avoid
8. entrained solid particles to sink and stay in downward oriented tube
9. gases to get stuck in upward oriented one.
10. Flexible piping or vibration isolating pipe support shall be used only in case of severely vibrating
applications.
11. For upstream or downstream distance restrictions the manufacturer’s instructions have to be considered.
12. For armoured cables double sealing cable glands shall be used, gripping both the jacket of the cable and
the insulation inside the armour, and ensuring connection of the cable armour to the instrument case.

2.4 Transmitter:
1. If special cable is necessary between the sensor and transmitter, it shall be delivered as accessory.
2. The mass flow value shall be accessible via independent analogue output of the transmitter. The following
parameters shall be accessible by HART connection:
a. density
b. (minimum) skin temperature
c. volumetric flow
In case of FFB instrument all values shall be accessible via Foundation Fieldbus output.
3. The instrument shall monitor itself continuously during its operation, generate transmitter failure alarms (as
values specific to DCS or ESD systems), include HART or FF based communication and communicate
event information to the field instrument maintenance (FIMS) system

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4. The output signals shall not contain the effects of the mechanical or hydraulic disturbances of the process
system (the transmitter shall have integral digital filters, output signal limit monitoring electronics, etc.).
5. Remote electronic assembly shall be applied for high temperature meters, or if the sensor is installed in a
hard accessible place.

2.5 Nameplate
All instruments shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the instrument, transmitter
• Symbol of protection class
• Nominal size and pressure rating of the instrument
• Measuring range of the instrument
• ID (tag) number of the instrument

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Coriolis flowmeters shall detect air slugs.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

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 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.4.3
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 8/9
Flow measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Coriolis Mass Flowmeter Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change F 002, D 002 New Rev.:
2 Service Crude 2017-18-ból
GENERAL 3 Line No. Line Size 150-P7001-BPE31-V DN 150
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R101/1
5 Flow No. Pipeline class 1A BPE31
6 Process Fluid State Light naphta Liquid
7 Flow Rate Units Max. Norm. Min.
kg/h 45 000 37 500 15 000
8 Inlet Pressure kPa-a - 600 -
9 Inlet Temperat. °C 30 30 .
10 Oper. Density kg/m3 - 668 .
11 Norm. Density Specific gravity kg/m3 - - -
12 Inlet Viscosity cP - 0,303 .
13 Inlet Compressibility Factor - . . .
14 Inlet Specific Heats Ratio - - - .
PROCESS
CONDITIONS 15 Mol Weight 83,8 .
16 Inlet Vap. Pressure Critical Pressure kPa-a 54 3450
17 Solids Type % - .
18 Flus up Superheat % - -
20 Derm. Pont / Grow point . .
21 Pulsating flow Vibration No No
19 Allow. Pressure Drop kPa-a 20
21 Design range: °C 80 kPa-g 700
20 Base data 101,325 kPa, 15 °C .
23
24 Tag Number Function FE 002 Mass, den. measuring
25 Manufacturer Model . .
26 Construction Type Corioli
27 Max. Scale Scale kg/h * 0-55000
28 End Conn. & Rating DN * Flanged PN16 EN 1092-1 B1
29 Body Material Flange Mat. SST SST
METER 30 Wetted parts material 316 SST
31 Supply Accuracy by Transmitter < 0,2%
32 Repeatabality Turn Down Ratio 0,05% min. 50:1
33 Conduit Conn. Spec. Cable In built 5 meter
34 Explosion Proof Spec. Cable EEx ib IIC T3 IP 65
35
36 Tag Number Function FT 002 Transmitting
37 Location - Remote
38 Mounting On 2" pipe with yoke
39 Supply 230 V ac
40 Output Signal Comm. 2 x 4...20 mA (mass, density) HART
41 Signal out charact. Linear
42 at increased input signal Output signal is increasing
43 Failure mode alarm Output signal < 3,75 mA
44 Physical Layer Type -
45 Voltage expected Current draw - -
46 Function Blocks Other Blocks - -
TRANSMITTER 47 Diagnostic Information -
48 Other requirement -
49 Output Gage No -
50 Accuracy < 0,2%
51 Local Span and Zero Yes
52 Transient Protector In built
53 Expl. Proof Enclosure EEx d (ib) IIC T3 min. IP65
54 Conduit Connection to meter In built
55 Conduit Connection for signal with Cable gland **
56 Conduit Connection for power with Cable glande **
57 Ambient Temperature -25...+45 °C
58
59 See second. Instr. Spec. -
OPTIONS 60 Compensation
61
Notes:
Required documentation: 1,2,3,4,5,7,8,11,12,15
* To be filled by vendor.
** Double compression type cable gland
1., Calc. data sheet is to be attached.
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.4.3
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 9/9
Flow measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Coriolis Mass Flowmeter (FFB) Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change KF 1001, KD 1001 New Rev.:
2 Service Heavy Feed from P-101-AB
GENERAL 3 Line No. Line Size 8"-PG-10104-D24-ST 8"
4 Area Class. P & I D No. Zone 1 IIC T3 P01
5 Flow No. Pipeline class - D24
6 Process Fluid State Gasoil Liquid
7 Flow Rate Units Max. Norm. Min.
kg/h 160 742 133 952 13 000
8 Inlet Pressure MPa-g - 1,44 / 0,84 Note 2 -
9 Inlet Temperat. °C - 35 .
10 Oper. Density kg/m3 - 860 .
11 Stand. or norm. Density kg/m3 - 871 -
12 Inlet Viscosity cP - 6,4 .
13 Inlet Compressibility Factor - . . .
14 Inlet Specific Heats Ratio - - - .
PROCESS
CONDITIONS 15 Mol Weight Sizing Flow 272 182 918 kg/h Note 2
16 Inlet Vap. Presure Critical Pressure bar-g -0,9 15,1
17 Solids Type % - .
18 Flus up Superheat % - -
19 Grow point . .
20 Pulsating flow Vibration - -
21 Allow. Pressure Drop kPa 25
22 Design range: °C 100 MPa-g 2
23 Base data 101,325 kPa, 15 °C .
24
25 Tag Number Function KFE 1001 Mass, den. measuring
26 Manufacturer Model * *
27 Construction Type Corioli
28 Max. Scale Scale STD m3/h * 0-210
29 End Conn. & Rating Size * Flanged 300#, RF ANSI B16.5
30 Body Material Flange Mat. SST SST
METER 31 Wetted parts material 316 SST
32 Supply Accuracy by Transmitter < 0,2%
33 Repeatabality Turn Down Ratio 0,05% min. 20:1
34 Conduit Conn. Spec. Cable In built 5 meter
35 Explosion Proof Enclosure EEx ib IIC T3 IP65
36 Pressure drop *
37 Tag Number Compensation KFT 1001 Yes - Temperature
38 Location Remote -
39 Mounting On 2" pipe with yoke
40 Supply 230 V ac
41 Output Signal Comm. mass, density Fundation Field Bus-H1
42 at increased input signal Output signal is increasing
43 Failure mode alarm -
44 Output Gage No -
TRANSMITTER
45 Turn Down Ratio Accuracy min. 50:1 < 0,2%
46 Local Span and Zero Yes
47 Transient Protector External
48 Expl. Proof Enclosure EEx d (ib) IIC T3 min. IP65
49 Conduit Connection to meter In built
50 Conduit Connection for signal with Cable gland **
51 Conduit Connection for power with Cable gland **
52 Ambient Temperature -25...+45 °C
53 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
54 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
55 Function Blocks Other Blocks AI1, AI2, AI3, AI4 INT
56 Diagnostic Information Yes
FOUNDATION
FIELD BUS H1***
57 LAS function Polarity Sensitive Yes No
58 Channel number and description Chanel 1 - Sensor, Chanel 2 - Density
59 Other requirement
60 IS Parameters for field device, max. internal Ci, Li * *
61 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
62 Compensation
OTHER
63 Heating jacket Steam jacket with NPT 1/2" in/out
Notes:
Required documentation: 1,2,3,4,5,6,7,8,11,13,15 1., Calc. data sheet is to be attached.
* To be filled by vendor.
** Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give. Note 2: Sizing data
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
4. Annubar-type flow measuring instruments

MGS-S-REF-I-5.4.4

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/7
4 Annubar-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.11.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 6
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Rev 1.00.01 3/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division

ANNUBAR-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding mass flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App.

1.4 Accuracy
1. The accuracy of the measuring instrument shall reach ±2% of the measured value in the measuring range
specified on the data sheet.
2. Turn-down ratio shall be better than 3:1.
3. Long term stability shall be better than ±0.1% for one year.
4. The repeatability shall be better than ±0.25% of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification.
The annubar flow meters shall conform to the requirements set forth in the relevant standards.
4. Bidder shall confirm that the measuring range of the annubar flow meter is at least 130% of the specified
flow.
5. The output signal shall be linear with the volumetric flow rate in the whole range.
6. Vendor shall attach the calculation sheet to the bid. In case of measurement of flows with pressure or
temperature compensation, the calculation shall be made for maximum volumetric flow, maximum
temperature and minimum pressure.
7. The body of the annubar flow meters and other product wetted parts shall be made of materials that are
appropriate for use in hydrocarbon service. The body shall be made of cast steel at least, and min. 25 barg
shall be considered as the pressure rating.
8. All wetted parts shall be made of stainless steel at least. Other parts may be made of cadmium-coated
carbon steel.
9. The design of the instruments shall provide for their installation or replacement during operation in the
cases defined in the specification. The direction of the flow shall be indicated clearly on the case.
10. The sensor shall be installed so that it is locked against turning. It shall also provide possibility for
adjustment and checking.
11. The bid shall contain the flow conditions for normal operation of the instrument (required straight pipe
lengths upstream and downstream, flow straightener, etc.), and the acceptable contamination levels, and
the necessary cleaning periods.
12. The bid shall quote for at least the following items:
• nozzle

Rev 1.00.01 5/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division

• bolts, nuts, washers

• isolating valve
• insertion mechanism
• sensor and head
• three-way manifold
• gaskets and bolts
• differential pressure transmitters
13. The transmitters of the annubar flow meters shall be explosion-proof: intrinsically safe, if the datasheet
does not specify otherwise.
14. The instruments shall have integral over-voltage protection.
15. For armoured cables double sealing cable glands shall be used, gripping both the jacket of the cable and
the insulation inside the armour, and ensuring connection of the cable armour to the instrument case.
16. The instrument case shall be connected to the equipotential earth system of the plant.

2.1 Signal processing instruments

• The signal processing instruments shall provide the followings:
o analogue or digital display of the actual value with engineering or SI unit
o at least one each of independent analogue and HART, or Foundation Fieldbus outputs
proportional to the volumetric flow rate, that can be connected to an external data acquisitions
equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall not contain the effects of the mechanical or hydraulic disturbances of the
process system (the transmitter shall have integral digital filters, output signal limit monitoring
electronics, etc.).

2.2 Nameplate
All instruments shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the pressure instrument, transmitter
• Symbol of protection class
• Nominal size and pressure rating of the instrument
• Insertion length of the sensor
• Measuring range of the instrument
ID (tag) number of the instrument

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.4
R&M Division

o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix

4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/7

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specifications sheets for instrumentation items

4. Flow measuring instruments
5. Turbine-type flow measuring instruments

MGS-S-REF-I-5.4.5

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specifications sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/7
5 Turbine-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division

Contents
1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 6
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Rev 1.00.01 3/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division

TURBINE-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorisation of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App.

1.4 Accuracy
The accuracy of the measuring instrument shall reach ±0.5% of the measured value, that shall contain the linearity,
and reproducing errors in the measuring range specified on the data sheet. Within this the maximum allowed value
of reproducibility shall be ±0.05% for the measured value.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification.
The turbine flow meters shall conform to the requirements set forth in the relevant standards.
4. Turbine flow meters shall not be used for control functions. In case a control function shall be realised, a
supplementary flow meter (e.g. orifice plate) shall be used.
5. Self-cleaning filters shall be used upstream of turbine meters if required by process conditions.
6. The turbine flow meters shall be calibrated for water, and the respective calibration curve shall be delivered
with the instrument.
7. The measuring range of the turbine flow meter shall be selected to equal at least 150% of the specified
flow.
8. The case of the turbine and other wetted parts shall be made of materials that are appropriate for use in
hydrocarbon service. The body shall be made of cast steel at least, and min. 25 barg shall be considered
as pressure rating unless required otherwise by the process pressure.
9. The turbine cases shall have flanged connections. In case of fluids containing free hydrogen or hydrogen-
fluoride, only confined seals (O-ring or tongue-and-groove type) may be used.
10. The turbines can only be used for unidirectional flows. The direction of the flow shall be clearly indicated on
the case.
11. The turbines shall be hydraulically balanced, and have journal bearings. The use of thrust bearings is not
allowed.
12. The material of the bearing and the rotor shall be ceramic or tungsten carbide steel. In case of special
fluids the different materials may be used, but the designer shall be informed about it.
13. The flow conditions necessary for the normal operation of the turbine (required upstream and downstream
straight lines, flow straightener etc.) shall be specified.
14. The necessary filter quality (mesh size) and the allowable amount of gas occlusion shall be specified.

Rev 1.00.01 5/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division

15. The turbines shall operate on the principle of magnetic induction or radio frequency, that is, both the
frequency and the amplitude shall be proportional to the measured flow.
16. The turbine flow meters shall have double pick-ups.
17. The turbine flow meters shall be used in intrinsically safe circuits, unless specified otherwise on the
specification sheet.
18. In case the instrument needs some special cable, it shall be quoted as an accessory.
19. The bid shall contain the requirements on the signal cables (allowable length, shielding, cable
characteristics, cable routing, etc.).
20. For armoured cables double sealing cable glands shall be used, gripping both the jacket of the cable and
the insulation inside the armour, and ensuring connection of the cable armour to the instrument case.
21. The instrument case shall be connected to the equipotential earth system of the plant.
22. The instruments shall have integral over-voltage protection.
23. Special requirements:
• One spare rotor and one sensor coil shall be provided for each flow meter
• The tools necessary to remove the sensor coil shall be attached to the instrument

2.1 Signal processing instruments

• The signal processing instruments shall provide the following:
o analogue or digital display of the actual value with engineering or SI unit
o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall be free from effects of the mechanical or hydraulic disturbances of the process
system (the transmitter shall have integral digital filters, output signal limit monitoring electronics etc.).

2.2 Nameplate
All instrument shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the turbine
• Symbol of protection class
• Nominal diameter and pressure rating of the turbine
• Measuring range and calibration constant of the turbine
• Frequency range and maximum voltage of the output signal
• Viscosity range used for calibration
• ID (tag) number of the turbine meter
• Temperature range

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.5
R&M Division

o Field device malfunction

o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/7

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
6. Ultrasonic-type flow measuring instruments

MGS-S-REF-I-5.4.6

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
6 Ultrasonic-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 6
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Ultrasonic flow meter specification sheet (sample) ...................................................................................................... 8

Ultrasonic flow meter specification sheet (FFB) (sample) ............................................................................................ 9

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/9 Rev 1.00.00

 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division

ULTRASONIC-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App

1.4 Accuracy
The accuracy of the measuring instrument shall reach ±1.5% of the measured value. The maximum value of
repeatability shall be ±0.5% of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification
applicable to the place of installation.
4. Ultrasonic volumetric flow meters shall be used only together with associated meter runs.
5. Ultrasonic flow meters operating on the basis of the Doppler principle shall be used for fluids contaminated
with solids and meters operating on the basis of runtime measurement principle for clean fluids.
6. The ultrasonic flow meter shall conform to the requirements set forth in the relevant standards.
7. The measuring range of the ultrasonic flow meter shall be selected to equal at least 130% of the specified
flow.
8. The output signal shall be linear with the volumetric flow rate in the whole range.
9. Vendor shall enclose the calculation sheet to the bid. In case of measurement of flows with pressure or
temperature compensation, the calculation shall be made for maximum volumetric flow, maximum
temperature and minimum pressure.
10. The body of the ultrasonic flow meters and other wetted parts shall be made of materials that are
appropriate for use in hydrocarbon service. The body shall be made of cast steel at least, and min. 25 barg
shall be considered as the pressure rating.
11. All wetted parts shall be made of stainless steel at least.
12. The design of the instruments shall provide for their replacement during operation in the cases defined in
the specifications. The direction of the flow shall be clearly indicated on the case.
13. The sensor shall be installed so that it is locked against dislocation. It shall also provide possibility for
adjustment and checking.
14. The bid shall specify the flow conditions for normal operation of the instrument and the acceptable
contamination levels, and the necessary cleaning periods.
15. The transmitters of the ultrasonic flow meters shall be explosion-proof: intrinsically safe, if the datasheet
does not specify otherwise. The bid shall contain the requirements on signal cables (allowed length,
shielding, cable characteristics, cable routing, etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division

16. In case special cable is needed for the instrument, it shall be quoted as an accessory.
17. The instruments shall have integral over-voltage protection.
18. For armoured cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour (when
armoured cables are used.
19. The instrument case shall be connected to the equipotential earth system of the plant.

2.1 Signal processing instruments

• The signal processing instruments shall provide the followings:
o analogue or digital display of the actual value with engineering or SI unit
o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall not contain the effects of the mechanical or hydraulic disturbances of the
process system (the transmitter shall have integral digital filters, output signal limit monitoring
electronics, etc.).

2.2 Nameplate
All instruments shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the meter
• Symbol of protection class
• Nominal size and pressure rating of the meter
• Measuring range of the meter
• ID (tag) number of the meter
• Temperature range

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected

6/9 Rev 1.00.00

 SLOVNAFT a.s. MGS-S-REF-I-5.4.6
R&M Division

o Electronic Board failure

o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/9

 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.6
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 8/9
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Ultrasonic Flow Meter Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change KFT 6011 New Rev.:
2 Service to Flare
GENERAL 3 Line No. Line Size 24"-FL-60409-B24 24"
4 Area Class. P & I D No. Zone 1 IIC T3 U04-2
5 Flow No. Pipeline class - B24
6 Process Fluid State CH, H2 gas
7 Flow Rate Units Sizing Max. Norm. Min.
8 Nm3/h 3 000 2 655 0 267
9 Inlet Pressure kPa-g - 100 -
10 Inlet Temperat. °C - 56 .
11 Oper. Density kg/m3 - 2,37 .
12 Norm. Density Base data kg/m3 - -
13 Inlet Viscosity cP - 0,03 .
14 Inlet Compressibility Factor - . 0,99 .
PROCESS
CONDITIONS 15 Inlet Specific Heats Ratio, cp/cv - . 1,3 .
16 Mol Weight Specific gravity 31,94 -
17 Inlet Vap. Pressure Critical Pressure kPa-a - -
18 Solids Type % - .
19 Flush up Superheat % - -
20 Allow. Pressure Drop bar 0,25
21 Design range: °C 190 kPa-g 600
22 Base data 101,325 kPa, 0 °C .
23 Pipe thickness 9,53 mm
24 Manufacturer Model * *
25 Transducer type Enclosure * EEx d IIC T6
26 Max. Scale Scale 0,03…85 m/s / 88 000 m³/h 0-3 000 Nm³//h
27 Tube instal. Material 90° arrangement Titanium
28 Measuring principle Frequency Runtime meas. 100 kHz
29 Tube lenght Nr of tran-rec. By Manufacturer 2 pcs
30
31 Mounting Head nozl. typ with Head nozzle 2pcs *
32 End Conn. & Rating 3" Flanged ANSI Class 150 #, RF
METER
33 Head noz. mat. Well material A105, 17-4-PH 316 SST
34 Wetted parts Stainless steel
35 Gasket material By Manufacturer
36 Replacement during operation -
37 Locked against dislocation Yes
38 Possibility for adjustment Yes
39 Possibility for checking Yes
40 Supply From secondary instruments
41 Conduit Conn. Spec. Cable MFR *
42 Lenght of spec. cable 3m / 50m; 2-2 pcs
43 Type Location * Field
44 Mounting Wall mounted in Cabinet
45 Supply 230 Vac
46 Output Signal Comm. 6 x 4...20 mA (flow, temp. pres.) -
47 Signal out charact. linear
48 at increased input signal Output signal is increasing
SECONDARY
INSTRUMENTS
49 Failure mode alarm Output signal < 3,75 mA
50 Output Gage Digital Eng. Unit, linear Adjustable
51 Local Span and Zero Yes
52 Accuracy 2…5 %
53 Transient Protector Required
54 Explosion Proof Enclosure - IP65
55 Conduit Connection with Cable glande **
56 Temperature Compensator Required 4-20 mA Eexd
57 Pressure Compensator Required 4-20 mA Eexd
58 Preamplifier By Manufacturer
MOUNTING
ACCESSORIES
59 Mounting kit Required
STARTUP 60 Startup Required
61 Accessories By Manufacturer
62 Nozzle Required
63 Instr.cab. Required
64
OPTIONS
65
66
Notes:
Required documentation: 1,2,3,4,5,7,8,11,15 1., Calc. data sheet is to be attached.
* To be filled by vendor.
** Double compr.type cable gland
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.6
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 9/9
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Ultrasonic Flow Meter (FFB) Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change KFT 6009 New Rev.:
2 Service Sour Off Gas to Flare
GENERAL 3 Line No. Line Size 12"-SF-60418-B24-ST 12"
4 Area Class. P & I D No. Zone 1 IIC T3 U04-1
5 Flow No. Pipeline class - B24
6 Process Fluid State Hydrogen Make up gas
7 Flow Rate Units Sizing Max. Norm. Min.
8 Nm3/h 3 000 2 655 0 267
9 Inlet Pressure kPa-g - 100 -
10 Inlet Temperat. °C - 56 .
11 Oper. Density kg/m3 - 2,37 .
12 Norm. Density Base data kg/m3 - -
13 Inlet Viscosity cP - 0,03 .
PROCESS 14 Inlet Compressibility Factor - . 0,99 .
CONDITIONS 15 Inlet Specific Heats Ratio, cp/cv - . 1,3 .
16 Mol Weight Specific gravity 31,94 -
17 Inlet Vap. Pr. Critical Pr. kPa-a - -
18 Solids Type % - .
19 Flush up Superheat % - -
20 Allow. Pressure Drop bar 0,25
21 Design range: °C 190 kPa-g 350
22 Base data 101,325 kPa 0 °C .
23 Manufacturer Model . * *
24 Max. Scale Scale Nm3/h * 0-3 000
25 End Conn. & Rating * Flanged ANSI Class 300 #, RF
26 Body Material Flange Material Carbon Steel Carbon Steel
27 Tube Material Required Carbon Steel
28 Measuring principle Runtime measurement
29 Wetted parts Stainless steel
30 Gasket material By Manufacturer
31 Transmitter type By Manufacturer
METER 32 Receiver type By Manufacturer
33 Number of transmitters-receivers By Manufacturer
34 Mounting By Manufacturer
35 Locked against dislocation Yes
36 Possibility for adjustment Yes
37 Possibility for checking Yes
38 Supply From secondary instruments
39 Conduit Conn. Spec. Cable MFR Yes
40 Lenght of spec. cable according to construction
41 Location Field
42 Mounting On sensor (process line) or Wall mounted
43 Supply Bus Powered
44 Output Signal Comm. - Fundation Field Bus - H1
45 at increased input signal Output signal is increasing
SECONDARY 46 Failure mode alarm Output signal < 3,75 mA
INSTRUMENTS 47 Output Gage Digital Eng. Unit, linear Adjustable
48 Local Span and Zero Yes
49 Accuracy < 2,0%
50 Transient Protector In built
51 Explosion Proof Enclosure EEx ia IIC T4 IP65
52 Conduit Connection with Cable glande **
53 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
54 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
55 Function Blocks Other Blocks AI PID
56 Diagnostic Information Yes
FOUNDATIION
FIELBUS H1***
57 LAS function Polarity Sensitive Yes No
58 Channel number and description
59 Other requirement
60 IS Parameters for field device, max. internal Ci, Li *
61 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
62 Temperature Compensator Required 4-20 mA Eexd Note 2
63 Pressure Compensator Required 4-20 mA Eexd Note 2
MOUNTING 64 Preamplifier Required
ACCESSORIES 65 Mounting kit Required
STARTUP
66 Startup Required
67 Accessories By Manufacturer
68 -
OPTIONS
69
Notes:
Required documentation: 1,2,3,4,5,7,8,11,13,15 *** The DEV, DD and CF service revision level must also be give.
* To be filled by vendor. 1., Calc. data sheet is to be attached.
** Double compression type cable gland
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
7. Inductive-type flow measuring instruments

MGS-S-REF-I-5.4.7

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
7 Inductive-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 5
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 6
5 Appendix ................................................................................................................................................................ 7

Inductive-type flow measuring instrument specification sheet (sample)................................................................... 8

Inductive-type flow measuring instrument (FFB) specification sheet (sample) ........................................................ 9

Rev 1.00.01 3/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/9 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division

INDUCTIVE-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App

1.4 Accuracy
The accuracy of the measuring instrument shall reach ±0.5% of the measured value in the measuring range. The
highest value of repeatability shall be ±0.25% of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification
applicable to the place of installation.
4. The dimension of the instrument shall be specified by the bidder in consideration of the velocity based on
the flow conditions given in the data sheet. The bidder shall specify the conductivity values applicable to
the proposed detector.
5. Piping design shall provide for the instrument to be always full of liquid.
6. The instrument cases shall have flanged connections. The direction of the flow shall be clearly indicated on
the case, if it is not selectable.
7. The bidder shall specify the flow conditions necessary for the normal operation of the instrument (specified
upstream pipe section, requirements on the installation of the block valve required for zero setting, isolation
requirements, etc.).
8. The bidder shall specify the grounding method and the specified values on the grounding resistance.
9. The bid shall contain the requirements on the signal cables (allowable length, shielding, cable
characteristics, cable routing, etc.).
10. In case the instrument needs special cable, it shall be quoted as an accessory.
11. The instruments shall have integral over-voltage protection.
12. For armoured cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument case, gripping both the jacket of the cable and the insulation below the armour (when
armoured cables are used).
13. The instrument case shall be connected to the equipotential earth system of the plant.

2.1 Signal processing instruments

• The signal processing instruments shall provide the followings:
o analogue or digital display of the actual value with engineering or SI unit

Rev 1.00.01 5/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division

o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall be free from effects of the mechanical or hydraulic disturbances of the process
system (the transmitter shall have integrated digital filters, output signal limit monitoring electronics,
etc.).

2.2 Nameplate
All instruments shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the meter
• Symbol of protection class
• Nominal diameter and pressure rating of the meter
• Measuring range and calibration constant of the meter
• ID (tag) number of the instrument
• Temperature range
• the minimal necessary conductivity value of the meter still providing the specified accuracy.

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Magnetic flowmeters shall detect an empty pipe, high process noise.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

6/9 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.7
R&M Division

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/9

 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.7
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 8/9
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Inductive-type flow measuring instrument Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change FT 2038 New Rev.:
2 Service Wash Water from D-251
GENERAL 3 Line No. Line Size 2"-SW-25020-D25X-ST 2"
4 Area Class. P & I D No. Zone 1 IIC T3 P51
5 Flow No. Pipeline class - D25X
6 Process Fluid State Wash Water Liquid
7 Flow Rate Units Max. Norm. Min.
kg/h 1 500 500 0
8 Sizing Flow kg/h 1 500 -
9 Inlet Pressure Mpa-g - 1,76 -
10 Inlet Temperature °C - 48 .
11 Oper. Density kg/m3 986 .
12 Norm. Density Base data kg/m3
13 Inlet Viscosity cP 0,56 .
PROCESS
CONDITIONS 14 Inlet Compressibility Factor - . - .
15 Inlet Specific Heats Ratio, cp/cv - . - .
16 Mol Weight Specific gravity .
17 Inlet Vap. Pressure Critical Pressure MPa-g - -
18 Solids Type % - .
19 Flush up Superheat % - -
20 Allow. Pressure Drop bar -
21 Design range: °C 100 MPa-g 2,9
22 Base data 101,325 kPa, 15 °C .
23 Manufacturer Model * *
24 Max. Scale Scale kg/h 6 914 0-1500
25 End Conn. & Rating 1/2" Flanged 300#, RF ANSI B16.36
26 Body Material Flange Mat. Welded steel Carbon Steel
27 Flowtube mat. Lining mat. AISI 304 SST PTFE
METER 28 Electrode material 316L SST
29 Excitation Supply Dual frequency From transmitter
30 Explosion Proof Enclosure ATEX EEx e ia IIC IP65
31 Conduit Conn. Spec. Cable - -
32 Ambient Temperature -25...+45 °C
33 Tag Number Function KFT 2038 Transmitting
34 Manufacturer Model * *
35 Location Mounting Sensor mount -
36 Supply 10-30 V dc
37 Output Signal Comm. 4-20mA HART, required
38 Signal out charact. Linear
39 at increased input signal Output signal is increasing
40 Failure mode alarm -
41 Physical Layer Type - -
42 Voltage expected Current draw - -
43 Function Blocks Other Blocks - -
TRANSMITTER 44 Diagnostic Inf. Polarity Sensitive - -
45 Other requirement -
46 Output Gage Digital Eng. Unit, linear Adjustable
47 Turn Down Ratio min. 20:1 -
48 Local Span and Zero Yes
49 Transient Protector In built
50 Explosion Proof Enclosure ATEX EEx d (ia) IIC T4 IP 65
51 Ambient Temperature -25...+45 °C
52 Conduit Connection to meter In built
53 Conduit Connection with Cable gland **
54 Accuracy < 0,5% of rate
55
56 See second. Instr. Spec. -
57 Compensation -
OPTIONS
58
59

Notes:
Required documentation: 1,2,3,4,5,6,7,11,12,15
*: To be filled by Vendor.
** Double compression type cable gland
1., Calc. data sheet is to be attached.
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.4.7
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 8/8
Designer Flow measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Inductive-type flow measuring instrument Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change FT 2038 New Rev.:
2 Service Wash Water from D-251
GENERAL 3 Line No. Line Size 2"-SW-25020-D25X-ST 2"
4 Area Class. P & I D No. Zone 1 IIC T3 P51
5 Flow No. Pipeline class - D25X
6 Process Fluid State Wash Water Liquid
7 Flow Rate Units Max. Norm. Min.
kg/h 1 500 500 0
8 Sizing Flow kg/h 1 500 -
9 Inlet Pressure MPa-g - 1,76 -
10 Inlet Temperature °C - 48 .
11 Oper. Density kg/m3 986 .
12 Norm. Density Base data kg/m3
13 Inlet Viscosity cP 0,56 .
PROCESS
CONDITIONS 14 Inlet Compressibility Factor - . - .
15 Inlet Specific Heats Ratio, cp/cv - . - .
16 Mol Weight Specific gravity .
17 Inlet Vap. Pressure Critical Pressure kPa-g - -
18 Solids Type % - .
19 Flush up Superheat % - -
20 Allow. Pressure Drop kPa-g -
21 Design range: °C 100 MPa-g 2,9
22 Base data 101,325 kPa, 15 °C .
23 Manufacturer Model * *
24 Max. Scale Scale kg/h 6 914 0-1500
25 End Conn. & Rating 1/2" Flanged 300#, RF ANSI B16.36
26 Body Material Flange Mat. Welded steel Carbon Steel
27 Flowtube mat. Lining mat. AISI 304 SST PTFE
METER 28 Electrode material 316L SST
29 Excitation Supply Dual frequency From transmitter
30 Explosion Proof Enclosure ATEX EEx e ia IIC IP65
31 Conduit Conn. Spec. Cable - -
32 Ambient Temperature -25...+45 °C
33 Tag Number Function KFT 2038 Transmitting
34 Manufacturer Model * *
35 Location Mounting Sensor mount -
36 Supply 230 V ac
37 Output Signal Comm. Fundation Field bus Fundation Field Bus - H1
38 Signal out charact. -
39 at increased input signal Output signal is increasing
40 Output Gage Digital Eng. Unit, linear Adjustable
TRANSMITTER
41 Turn Down Ratio min. 20:1 -
42 Local Span and Zero Yes
43 Transient Protector In built
44 Explosion Proof Enclosure ATEX EEx d (ia) IIC T4 IP 65
45 Ambient Temperature -25...+45 °C
46 Conduit Connection to meter In built
47 Conduit Connection with Cable gland **
48 Accuracy < 0,5% of rate
49 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
50 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
51 Function Blocks Other Blocks AI PID
52 Diagnostic Information Yes
FOUNDATION
FIELDBUS ***
53 Backup LAS funct. Polarity Sensitive Yes No
54 Channel number and description
55 Other requirement
56 IS Parameters for field device, max. internal Ci, Li *
57 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
58 See second. Instr. Spec. -
59 Compensation -
OPTIONS
60
61

Notes:
*: To be filled by Vendor.
** Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give.
1., Calc. data sheet is to be attached.

Required documentation: 1,2,3,4,5,6,7,8,11,13,15

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation

4. Flow measuring instruments
8. Rotameter-type flow measuring instruments

MGS-S-REF-I-5.4.8

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/7
8 Rotameter-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.12.2005 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 5
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 6
5 Appendix ................................................................................................................................................................ 7

Rev 1.00.01 3/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/7 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division

ROTAMETER-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App.

1.4 Accuracy
The accuracy of the rotameter measurements shall reach 2% of the upper limit of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification
applicable to the place of installation.
4. Bidder shall confirm the measuring range so that the nominal measured value shall be at the middle of the
measuring tube.
5. The measuring tube of the instrument and other wetted parts shall be made of materials that are
appropriate for use in hydrocarbon service. Min. 25 barg shall be considered as the pressure rating.
6. The rotameters shall have flanged connections.
7. The measuring case shall have input and output side (spring type) float stops.
8. Local reading shall be provided. The scale shall be linear.
9. The use of glass-tube type rotameters shall be considered in respect of fire-protection and safety. In case
the local reading is provided by glass gauge, it shall have safety design, and its isolation valves shall be
supplied as accessories to the rotameter, and they shall be safety block valves that automatically close in
case the glass breaks. The use of metal rotameters are preferable.
10. The floats shall be self-cleaning and dimensionally stable, viscosity independent designs are preferred.
11.
12. Rotameters with electrical transmitters shall have over-voltage protection.
13. The flow conditions necessary for the normal operation of the instrument (upstream and downstream pipe
sections, etc.) shall be specified by the bidder.
14. The instrument case shall be connected to the equipotential earth system of the plant.
15. In case of rotameters with transmitters double sealing cable gland shall be used, gripping both the jacket of
the cable and the insulation inside the armour, and ensuring connection of the cable armour to the
instrument case, when armoured cables are used.

2.1 Signal processing instruments

The rotameter shall be provided with a transmitter for transmitting the measured signal if it is specified on the data
sheet

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division

• The signal processing instruments shall provide the following:

o analogue or digital display of the actual value with engineering or SI unit
o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall be free from effects of the mechanical or hydraulic disturbance of the process
system (the transmitter shall have integrated digital filters, output signal limit monitoring electronics,
etc.).

2.2 Nameplate
All rotameters shall be provided with durable nameplates easy to read during operation even if the equipment is
insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the rotameter
• Nominal size and pressure rating of the rotameter
• Measuring range and calibration constant of the rotameter
• Viscosity range of calibration
• ID (tag) number of the instrument
• Temperature range
• Description, specific weight or density of the fluid to be measured

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

See app.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.8
R&M Division

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/7

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation

4. Flow measuring instruments
9. Positive displacement flow measuring instruments

MGS-S-REF-I-5.4.9

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/7
9 Positive displacement flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Applicable codes & standards ...................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Signal processing instruments ...................................................................................................................... 6
2.2 Nameplate..................................................................................................................................................... 6
3 Transmitter diagnostics ......................................................................................................................................... 6
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 7

Rev 1.00.01 3/7

 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/7 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division

POSITIVE DISPLACEMENT FLOW MEASURING INSTRUMENTS

1 General
This specification describes the basic design requirements regarding flow measuring instruments installed in
production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Applicable codes & standards

See MGS-M-REF-I-4 App. & MGS-S-REF-I-4 App.

1.4 Accuracy
The accuracy of the positive displacement measuring instrument shall reach ±0.5% of the measured value,
including the linearity, and reproducibility errors in the measuring range specified on the data sheet.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification
applicable to the place of installation. The positive displacement flow meters shall conform to the
requirements set forth in the relevant standards.
4. Positive displacement flow meters shall not be used for control functions. In case a control function shall be
realised, an additional flow meter (e.g. orifice plate) shall be used.
5. Positive displacement flow meters shall be installed in by-pass lines. The diameter of isolating valves shall
conform to the meter diameter, and block valve diameter in the main line shall conform to the process line
diameter.
6. Self-cleaning filters shall be used in the upstream process line for positive displacement meters, if required.
7. The measuring range of positive displacement flow meters shall be selected to equal at least 150% of the
specified flow.
8. The case of the PD flow meter and other wetted parts shall be made of materials that are appropriate for
use in hydrocarbon service. The body shall be made of cast steel at least, and min. 25 barg shall be
considered as the pressure rating unless required otherwise by process pressures.
9. The PD meter cases shall have flanged connections. In the case of fluids containing free hydrogen or
hydrogen fluoride, only confined seals (O-ring or tongue-and-groove type) may be used.
10. Positive displacement meters may only be used for uni-directional flows and the flow direction shall be
indicated on the meter case.
11. The flow conditions necessary for the normal operation of positive displacement flow meters shall be
specified by the vendor.
12. The necessary filter quality (mesh size) and the allowable amount of gas bubbles shall be specified.
13. The positive displacement flow meters shall be used in intrinsically safe circuits, unless specified otherwise
on the datasheet.
14. For armoured cables double sealing cable gland shall be used, gripping both the jacket of the cable and the
insulation inside the armour, and ensuring connection of the cable armour to the instrument case.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division

15. The instrument case shall be connected to the equipotential earth system of the plant.
16. The instruments shall have integral over-voltage protection.

2.1 Signal processing instruments

The rotameter shall be provided with a transmitter for transmitting the measured signal if it is specified on the data
sheet
• The signal processing instruments shall provide the following:
o analogue or digital display of the actual value with engineering or SI unit
o independent analogue and HART, or Foundation Fieldbus output proportional to the volumetric
flow rate, that can be connected to an external data acquisition equipment
o The electronics shall be of self-diagnostic design.
• The output signals shall be free from effects of the mechanical or hydraulic disturbance of the process
system (the transmitter shall have integrated digital filters, output signal limit monitoring electronics,
etc.).

2.2 Nameplate
All positive displacement flow meters shall be provided with durable nameplates easy to read during operation
even if the equipment is insulated.
Nameplates shall indicate at least the following information:
• Name of the manufacturer
• Model number and serial number of the rotameter
• Nominal size and pressure rating of the rotameter
• Measuring range and calibration constant of the rotameter
• Viscosity range of calibration
• ID (tag) number of the instrument
• Temperature range
• Description, specific weight or density of the fluid to be measured

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
Operating conditions out of specifications (e.g. cell temperature)

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.9
R&M Division

4 Datasheet to be provided for MMS (maintenance management system):

See app.

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/7

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

4. Flow measuring instruments
10. Thermal dispersion-type flow measuring instruments

MGS-S-REF-I-5.4.10

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
4 Flow measuring instruments Page/Pages: 2/9
10 Thermal dispersion-type flow measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00. 05.12.2011 First issue László Kántor
László Zuzana
1.00.00. 30.11.2011 General issue
Kántor Stanová
1.00.01 31.01.2014 General review Zuzana Pavol
Stanová Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Applicable codes & standards ...................................................................................................................... 5
1.3 Protection ...................................................................................................................................................... 5
1.4 Accuracy ....................................................................................................................................................... 5
2 Types and Applications ......................................................................................................................................... 5
2.1 General applications ..................................................................................................................................... 5
2.2 Special Applications ...................................................................................................................................... 5
3 General Requirements .......................................................................................................................................... 5
4 Transmitter diagnostics ......................................................................................................................................... 7
5 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
6 Appendix ................................................................................................................................................................ 7

Thermal dispersion type mass flow meter specification sheet (sample) ...................................................................... 8
Thermal dispersion type mass flow meter (FFB) specification sheet (sample) ............................................................ 9

Rev 1.00.01 3/9

 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/9 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division

THERMAL DISPERSION-TYPE FLOW MEASURING INSTRUMENTS

1 General
This specification describes the requirements regarding thermal dispersion-type flow measuring instruments
installed in production facilities.

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed by the written
authorisation of MOL Group.

1.2 Applicable codes & standards

• ISO 14511
• Applicable codes and standards are listed in MGS-M-REF-I-4 & MGS-S-REF-I-4

1.3 Protection
The explosion-protection and IP protection of the instruments shall meet the requirements of Section MGS-M-REF-
I-4 & MGS-S-REF-I-4: “Site conditions and required protection classes.

1.4 Accuracy
The reference accuracy of the measuring instruments shall be better than ±0,5 % of full scale.
Stability with relation to the measuring range and at least for 24 months shall be better than ±0.4 % of reading.

2 Types and Applications

All thermal dispersion type flow meters shall be manufactured according to the relevant standards for general use
within the standard application restrictions.

2.1 General applications

The thermal dispersion type mass flow meters can be used in the following applications:
• At extremely low flow rates
• In case when wide turndown ratio needed
• Phase detection
• Pure, dry and clean gases
• In case of standard gas mixtures, the ratio of the components shall be constant in time (for e.g. air)

All ambient factors and media properties which can affect the measurement shall be constant in time. (The
temperature and pressure changes can affect the gas properties and the accuracy.)
Use of thermal mass flow meters is accepted only in non critical process positions for indication. Use for control
functions shall be allowed by written authorisation of MOL Group.

2.2 Special Applications

Special application of thermal dispersion type meters can be used as flow switch or level switch.

3 General Requirements
1. The instruments installed shall conform to all mechanical and process requirements. The specified
materials shall be in accordance with the pipe class specification system, standards and requirements.
2. The material of wetted components shall be at least SS 316.
3. The probe type shall conform to the process requirements. It shall be sheathed in corrosion and wear proof
tubular metallic cover.
4. The thermal dispersion type mass flow meters shall be installed where the process conditions (for e.g.
Temperature, pressure) and ambient conditions are most stable.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division

5. Under DN80 pipeline in line type, flanged (Has flow body and flanged process connection) or insertion type
thermal dispersion type mass flow meter shall be used. Over DN80 insertion type flow meter shall be used.
(See figure 1. and 2.)

Figure 1. Flanged type thermal mass flow meter

Figure 2. Insertion type thermal mass flow meter

6. The minimal upstream and downstream straight lengths between various fittings and the thermal dispersion
type mass flow meter shall be prepared according the manufacturers requirements. Generally the proper
design of the process pipes shall provide the conformity to the minimum upstream and downstream
lengths, prescribed by the meter supplier.
7. In case of insertion type meters the insertion depth shall be in accordance with the manufacturers
recommendations.
8. Generally thermal dispersion type mass flow meters shall be installed in horizontal lines. Vertical
installation is not recommended. In case where there is no possibility to install the thermal dispersion type
mass flow meter in a horizontal line, it can be installed in vertical lines in which liquids flow upwards and
gases flow downwards through the thermal dispersion type mass flow meter.
9. The measurement range of the flow meter shall be 1.05...1.1 times of the maximum flow.
10. The instrument body shall have earth connection point and it shall be connected to the equipotential earth
system of the plant.
11. The output signal shall be 4-20 mA+Hart or Foundation Fieldbus depending on the project specifications.

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 SLOVNAFT a.s. MGS-S-REF-I-5.4.10
R&M Division

12. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4:“Signal range, measuring range, scale data, accuracy requirements”.
13. Cable requirements: see App.
14. The instrument body and the cable gland shall provide protection against environmental effects, and in
case of intrinsically safe devices their protection class shall be minimum IP 65.
15. For armoured cables double sealing cable glands shall be used, ensuring the grounding of the armour to
the instrument body, gripping both the jacket of the cable and the insulation below the armour.
16. The measuring system consists of a transmitter and sensor. Two versions are acceptable:
• Compact versions: transmitter and sensor form a single mechanical unit
• Remote version: transmitter and sensor are mounted physically separate from one other. This type
can be used in case of high temperature applications or if the sensor is installed in hard accessible
place.
17. In case of start-up and shutdown procedures, the pipeline section of the flow meter can contain explosive
gas mixture (oxygen can appear). Therefore the temperature of the probe shall not reach the auto ignition
temperature (AIT) of the gas mixture.

4 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

5 Datasheet to be provided for MMS (maintenance management system):

See app.

6 Appendix
3: General requirements
ad 13: Cable requirements: The signal lines of pressure instruments shall conform to the general requirements
on cables. The cables of the pressure instruments shall have stranded twisted pair and shielded against
interference. In case of necessity armoured cables may be used.
4: Datasheet to be provided for MMS (maintenance management system): N/A

Rev 1.00.01 7/9

 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.4.10
1.00.02 Project No:
Designer Specification sheets for instrumentation items 1.00.01 Page: 8/9
Flow measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Thermal dispersion type mass flow meter Rev Date Designer Date: 30.11.2011.
1 Tag Number New/Change CFT-098 New Rev.:
2 Service Vent gas from D-108 to D-106
GENERAL 3 Line No. Line Size 600P-02509 DN 600
4 Area Class. P & I D No. Zone 1 IIC T3 028
5 Flow No. Pipeline class 1A BPE31
6 Process Fluid State HC steam steam/vapour
7 Flow Rate Units Max. Norm. Min.
kg/h 600 10 000 86 000
8 Inlet Pressure bar-a 0,5 0,34 -
9 Inlet Temperat. °C 80 66 .
10 Oper. Density kg/m3 - 668 .
11 Norm. Density Specific gravity kg/m3 - -
12 Inlet Viscosity cP - .
13 Inlet Compressibility Factor - . . .
PROCESS 14 Inlet Specific Heats Ratio - - 1,2 .
CONDITIONS 15 Mol Weight 17 .
16 Inlet Vap. Pr. Critacal Pr. bar-a - -
17 Solids Type % - .
18 Flus up Superheat % - -
20 Grow point . .
21 Pulsating flow Vibration No No
19 Allow. Pressure Drop bar 0,2
21 Design range: °C 80 bar-g 7
20 Base data 1.013 bara, 15 °C .
23
24 Tag Number Function FE 002 Mass measuring
25 Manufacturer Model . .
26 Construction Type Thermal dispersion type
27 Max. Scale Scale kg/h * 0-90000
28 nyomásfokozat End Conn. & Rating DN * weld-on adapter PN25 EN 1092-1 B1
29 Body Material Flange Mat. SST SST
METER
30 Wetted parts material 316 SST
31 Supply Accuracy by Transmitter < 0,2%
32 Repeatabality Turn Down Ratio 0,05% min. 50:1
33 Conduit Conn. Spec. Cable In built 5 meter
34 Explosion Proof Enclosure EEx ib IIC T3 IP 65
35
36 Tag Number Function CFT-098 Transmitting
37 Location - Compact
38 Mounting Compact
39 Supply 230 V ac
40 Output Signal Comm. 4...20 mA (mass) HART
41 Signal out charact. Linear
42 at increased input signal Output signal is increasing
43 Failure mode alarm Output signal < 3,75 mA
44 Physical Layer Type -
45 Voltage expected Current draw - -
46 Function Blocks Other Blocks - -
TRANSMITTER 47 Diagnostic Information -
48 Other requirement -
49 Output Gage No -
50 Accuracy < 0,2%
51 Local Span and Zero Yes
52 Transient Protector Beépített / In built
53 Expl. Proof Enclosure EEx d (ib) IIC T3 min. IP65
54 Conduit Connection to meter In built
55 Conduit Connection for signal with Cable gland **
56 Conduit Connection for power with Cable gland **
57 Ambient Temperature -25...+45 °C
58
59 See second. Instr. Spec. -
OPTIONS 60 Compensation
61
Notes:
Required documentation: 1,2,3,4,5,7,8,11,12,15
* To be filled by vendor.
** Double compression type cable gland
1., Calc. data sheet is to be attached.
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.4.10
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 9/9
Flow measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Thermal dispersion type mass flowmeter (FFB) Rev Date Designer Date: 30.11.2011.
1 Tag Number New/Change CFT-098 New Rev.:
2 Service Vent gas from D-108 to D-106
GENERAL 3 Line No. Line Size 600P-02509 DN 600
4 Area Class. P & I D No. Zone 1 IIC T3 028
5 Flow No. Pipeline class 1A BPE31
6 Process Fluid State HC steam vapour/gas
7 Flow Rate Units Max. Norm. Min.
kg/h 600 10 000 86 000
8 Inlet Pressure bar-a 0,5 0,34 -
9 Inlet Temperat. °C 80 66 .
10 Oper. Density kg/m3 - 668 .
11 Stand. or norm. Density kg/m3 - -
12 Inlet Viscosity cP - .
13 Inlet Compressibility Factor - . . .
PROCESS 14 Inlet Specific Heats Ratio - - 1,2 .
CONDITIONS 15 Mol Weight Sizing Flow 17 .
16 Inlet Vap. Pr. Critacal Pr. bar-a - -
17 Solids Type % - .
18 Flus up Superheat % - -
19 Grow point . .
20 Pulsating flow Vibration No No
21 Allow. Pressure Drop bar 0,2
22 Design range: °C 80 bar-g 7
23 Base data 1.013 bara, 15 °C .
24
25 Tag Number Function FE 002 Mass measuring
26 Manufacturer Model . .
27 Construction Type Thermal dispersion type
28 Max. Scale Scale kg/h * 0-90000
29 End Conn. & Rating DN * weld-on adapter PN25 EN 1092-1 B1
30 Body Material Flange Mat. SST SST
METER
31 Wetted parts material 316 SST
32 Supply Accuracy by Transmitter < 0,2%
33 Repeatabality Turn Down Ratio 0,05% min. 50:1
34 Conduit Conn. Spec. Cable In built 5 meter
35 Explosion Proof Enclosure EEx ib IIC T3 IP 65
36 Pressure drop
37 Tag Number Compensation CFT-098 Transmitting
38 Location Compact -
39 Mounting Compact
40 Supply 230 V ac
41 Output Signal Comm. mass Fundation Field Bus-H1
42 at increased input signal Output signal is increasing
43 Failure mode alarm -
44 Output Gage No -
TRANSMITTER
45 Turn Down Ratio Accuracy min. 50:1 < 0,2%
46 Local Span and Zero Yes
47 Transient Protector External
48 Expl. Proof Enclosure EEx d (ib) IIC T3 min. IP65
49 Conduit Connection to meter In built
50 Conduit Connection for signal with Cable gland **
51 Conduit Connection for power with Cable glande **
52 Ambient Temperature -25...+45 °C
53 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
54 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
55 Function Blocks Other Blocks AI1, AI2, AI3, AI4 INT
56 Diagnostic Information Yes
FOUNDATION
FIELD BUS H1***
57 LAS function Polarity Sensitive Yes No
58 Channel number and description Chanel 1 - Sensor, Chanel 2 - Density
59 Other requirement
60 IS Parameters for field device, max. internal Ci, Li * *
61 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
62 Compensation
OTHER
63 Heating jacket Steam jacket with NPT 1/2" in/out
Notes:
Required documentation: 1,2,3,4,5,6,7,8,11,13,15 Note 2: Sizing data
* To be filled by vendor.
** Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give.
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

5. Level measuring

MGS-S-REF-I-5.5

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.5
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
5 Level measuring Page/Pages: 2/4

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.5
R&M Division

Contents

Release list ................................................................................................................................................................... 2

Book breakdown ........................................................................................................................................................... 4

Rev 1.00.01 3/4

 SLOVNAFT a.s. MGS-S-REF-I-5.5
R&M Division

Book breakdown

Description Identifier Rev.

Level measuring MGS-S-REF-I-5.5 1.00.01
Level measuring instruments MGS-S-REF-I-5.5.1 1.00.01
Differential pressure transmitters for level measuring MGS-S-REF-I-5.5.2 1.00.01
Radioactive level measuring instruments MGS-S-REF-I-5.5.3 1.00.00
Radar gauges MGS-S-REF-I-5.5.4 1.00.00

4/4 Rev 1.00.01

SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

5. Level measuring
1. Level measuring instruments

MGS-S-REF-I-5.5.1

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification sheets for instrumentation items Date: 31.01.2014
5 Level measuring Page/Pages: 2/12
1 Level measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release
1.00.00 30.11.2011 Structural modification Kocsmárszki L. Pallagi
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Accuracy ....................................................................................................................................................... 5
2 Technical Requirements ........................................................................................................................................ 5
2.1 Level switches .............................................................................................................................................. 6
2.2 Local level gauges ........................................................................................................................................ 6
2.3 Installation ..................................................................................................................................................... 6
2.4 Local level controllers ................................................................................................................................... 7
2.5 Nameplate..................................................................................................................................................... 7
3 Transmitter diagnostics ......................................................................................................................................... 7
4 Datasheet to be provided for MMS (maintenance management system): ............................................................ 7
5 Appendix ................................................................................................................................................................ 8

Level transmitters specification sheet (sample) ........................................................................................................... 9

Float-type level switch instruments specification sheet (sample) ............................................................................... 10
Vibration fork level switch instruments specification sheet (sample) ......................................................................... 11
Level transmitter (displacer type) (FFB) specification sheet (sample) ....................................................................... 12

Rev 1.00.01 3/12

 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

REQUIRED DOCUMENTATIONS
1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

REQUIREMENTS ON LEVEL MEASURING INSTRUMENTS

1 General
This present specification describes the basic design requirements regarding level measuring instruments installed
in production facilities and does not apply to high accuracy level gauging systems used in tank farms (for custody
measurements).

1.1 Deviations
The Project Specification may include differences from or modifications to these requirements. Any deviations from
the contents of this specification and project specifications shall be allowed only with the written authorization of
MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.

1.2 Protection
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Site conditions and required protection classes”.

1.3 Accuracy
The accuracy of the measuring instrument shall be less than ±1% of span.

2 Technical Requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4 “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification
applicable to the place of installation.
4. For level measuring, signal transmission and control, displacer-type instruments, hydrostatic diff. pressure
level instruments, DP meters, float-type level instruments, etc. may be used
5. The level instruments shall ensure functional checking during operation.
6. Displacer-type level instruments directly installed in process equipment may be used up to 3000 mm.
7. Displacer-type level instrument with cage can be used up to 2000 mm. The float chamber shall be vertical.
The connection of cage depends from the medium.
8. The cage shall be separated from the instrument by flanged gate valves.
9. In special cases – e.g. measuring ranges between 3000 and 5000 mm – differential pressure type level
instruments may be used.
10. Instruments mounted externally with side connection shall have rotatable heads.
11. The bottom of the cage with side mounted bottom nozzles shall be provided with ¾” or 1”NPT drains and
shall be plugged.
12. Aggressive or toxic fluids shall be drained or vented in closed systems. Minimum ½” diameter valves and
pipes shall be used for draining or venting.
13. The body of the level instruments and other wetted parts shall be made of materials appropriate for use in
hydrocarbon service. The case and cage shall be made of at least cast steel, and 25 barg shall be
considered as the pressure rating.
14. In the case of fluids containing hydrogen or above 40 barg pressure confined seals (in tongue-and-groove
or ring-joint type flanges) shall be used.
15. If required, the float chamber shall be heated. Electric heat tracing shall be preferred.
16. Separate supports shall be provided for cages (float/displacer chambers).
17. Vendor shall specify the fluid temperature above which transmitters with cooling extension need to be
used.
18. The level transmitters shall have the facility provided, for checking during continuous operation.

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 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

19. The instructions of the operating manual shipped with the equipment (supplied by the customer) shall be
followed as the design and installation requirements for high accuracy level measurement.
20. The instruments shall have integral over-voltage protection.
21. For armoured cables double compression type cable glands shall be used, gripping both the jacket of the
cable and the insulation inside the armour, and ensuring connection of the cable armour to the instrument
case.
22. The instrument case shall be connected to the equipotential earth system of the plant.
23. In special cases, with the consent of the customer, radioactive level gauge or level switch instruments may
be used. In the handling of the isotopes the currently effective law in practice shall be observed!
24. If the level is measured by ultrasonic instruments or radar instruments, to exclude or reduce false
reflextions from obstacles, welds, etc. by proper installation shall be used, eventually by application of
perforated stilling well shall be used, if any.

2.1 Level switches

1. Level switches shall be used, if there is no other level instrument exist in the vicinity and alarm function has
to be realized. In the case if critical shut-down has to be realised, the independent level switches shall be
used.
2. In the case of independent level switches provisions shall be made for the local functional checking of the
level switch.
3. Vibration Fork level switches shall be generally used unless excluded by process conditions. It is
recommended to install the switch outside the equipment. Capacitance, float or ultrasonic level switches
can be used with Client approval.
4. In the case of float type level switches installed outside the equipment it is recommended to use magnetic
connection between the float and the electric switch. If the process requires the float may be installed
inside the equipment as well.
5. If there are more than one setpoint of the level switch only one setpoint can be used for remote control
function. For alarm function more than one setpoint may be used.
6. The use of airtight SPDT micro-switches is recommended.
7. Micro-switches having oxidation-proof contacts may be applied only.

2.2 Local level gauges

1. Indirect type gauge glasses can be used for clean fluids, which are free from deposits and sediments, with
the exception of the following:
• Interface level indication
• Heavy distillates
• Liquids requiring supplementary protection: steam above 25 barg, toxic liquids, liquids containing more
than 15% toxic components.
• Liquids containing deposits, rubber, solids that can settle in the indirect type level gauge.
2. The glass gauge or bypass magnetic level indicator shall be used for local indication of level.
3. Transparent local gauge glasses shall be provided with lights conforming to the requirements of hazardous
area classification of the environment.
4. The gauge glasses shall be break-proof type and equipped with automatic trip ball check valve . Flanged
connections shall be used.
5. The local level gauges shall be capable of being isolated and shall have a drain valve. Above 45 barg the
shut-off valves shall be doubled.

2.3 Installation
1. If the transmitter, switch or indicator is not directly connected to the equipment, stand-pipe shall be used.
Isolating valves shall be installed both between the instruments and the stand-pipe, and the stand-pipe and
the equipment.
2. If the displacer is inside the process equipment, and the expected movement of the medium can disturb the
measurement, stilling wells of perforated pipe or baffle plate shall be used.

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 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

2.4 Local level controllers

1. In special cases where the use of local level controllers is necessary, the application of displacer-type
transmitter and pneumatic controller is recommended. The manufacturer’s instructions shall be followed in
the design the control loop.
2. The local level controller shall have proportional characteristics, adjustment capabilities, output signal
display and automatic/manual selector switch.
3. In the case of local level controllers level switches independent of the local controller shall be installed.
Such level switches shall give alarms in the permanently attended control room.

2.5 Nameplate
All level instruments shall be provided with durable nameplates easy to read even in the case of insulated
installation.
The nameplates shall indicate at least the following information:
• manufacturer
• serial and model number of the level instrument
• symbol of protection class
• size and pressure rating of the level instrument
• measuring range of the level instrument
• ID (tag) number of the level instrument
• temperature range

3 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Pressure (level) transmitter shall have plugged impulse line detection capability.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

4 Datasheet to be provided for MMS (maintenance management system):

Rev 1.00.01 7/12

 SLOVNAFT a.s. MGS-S-REF-I-5.5.1
R&M Division

See app.

5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

8/12 Rev 1.00.01

 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.5.1
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 9/12
Designer Level measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Level transmitters Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change LT 001 New Rev.:
2 Service Level in V1
3 Line No. V1
GENERAL
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R101/1
5 Ambient Temperature -25...+45 °C
6 Construction Type Displacer type
6 Oper. Density Bottom Fluid kg/m3 667 Light naphta
7 Oper. Density Top Fluid kg/Nm3 0,857 Fuelgas
8 Oper. Pressure Max. Pressure kPa-g 50 300
9 Oper Temperature Max. Temperature°C 31 60
PROCESS
CONDITIONS 10 Oper. Viscosity Bottom Top Fluid cP 0,298 -
11 Flush up Superheat % . .
12 Solids Type
13 Design range: °C 70 kPa-g 400
14 Manufacturer Model * *
15 Body or Cage Material *
16 Body or Cage Rating PN 40
17 Gasket material PTFE
18 Connection Flange Mat. Carbon steel
19 Upper nozzle DN50 Flanged PN40 EN 1092-1 B1
20 Upper nozzle orientation See figure 1. Top
21 Lower nozzle DN50 Flanged PN40 EN 1092-1 B1
22 Lower nozzle orientation See figure 1. Side
23 Vent nozzle DN25 Flanged PN40 EN 1092-1 B1
24 Vent nozzle orientation See figure 1. Top
BODY / CAGE 25 Drain nozzle DN25 Flanged PN40 EN 1092-1 B1
26 Drain nozzle orientation See figure 1. Bottom
27 Case Mounting According to vendor
28 Case Type See figure 1.
29 Orientation See figure 1. Side
30 Cooling Extension According to vendor
31 Rotable Head Required
32 Size H mm - -
33 Displacer Extens. (Size A) mm - -
34 Insertion Depth (Size B) mm . .
35 Measuring range (MR ) mm 0-2000 See figure 1.
36 Displacer Material Size 316 SST MFR
DISPLACER
37 Displacer Spring/Tube Material 316 SST
38 .
39 Displacer Material Size . .
FLOAT
40 Displacer Spring/Tube Material .
41 .
42 Location Sensor mount -
43 Mounting -
44 Supply Loop powered
45 Output Signal Communication 4...20 mA HART
46 Signal out charact. linear
47 at increased input signal Output signal is increasing
51 Failure mode alarm Output signal < 3,75 mA
42 Physical Layer Type -
43 Voltage expected Current draw - -
TRANSMITTER 44 Function Blocks Other Blocks - -
45 Diagnostic Information -
46 Other requirement -
48 Max. Scale Scale mm - 0-2000 mm
49 Output Gage Digital Eng. Unit, linear Adjustable
50 Local Span and Zero Yes
52 Accuracy < 1,0%
53 Transient Protector In built
54 Explosion Proof Enclosure EEx ia IIC T3 min. IP65
55 Conduit Connection with Cable glande **
56 See second. Instr. Spec. -
OPTIONS
57 Protection against vibration Yes
Notes:
Required documentation: 1,2,3,4,5,8,11,12,15 DN25

* To be filled by Vendor.
** Double compression type cable gland
H

1. ábra
Figure 1 DN25
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.5.1
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 10/12
Designer Level measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Float Type Level Switch Instr. Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change LZL 001 New Rev.:
2 Service V2 Level minimum
3 Line No. V2
GENERAL 4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R101/1
5 Ambient Temperature -25...+45 °C
6 Construction Type Float type
7 .
8 Oper. Density Bottom Fluid kg/m3 1002 Sourwater
9 Oper. Density Top Fluid kg/m3 663 Light naphta
10 Oper. Pressure Max. Pressure MPa-g 1,78 2
11 Oper Temperature Max. Temperature°C 33 50
PROCESS 12 Oper. Viscosity Bottom Top Fluid cP víz: 0,748 k.ben.0,298
CONDITIONS 13 Flush up Superheat % . .
14 Solids Type % . .
15 Design range: °C 50 MPa-g 2,4

16 Manufacturer Model * *
17 Body or Cage Material SST
18 Body or Cage Rating DN 100, PN 63, EN 1092-1 B1
19 Gasket material MFR
20 Connection Flange Mat. SST
21 Upper nozzle - - - -
22 Lower nozzle - - - -
23 Upper nozzle Lower nozzle - -
BODY / CAGE
24 Vent nozzle . . . .
25 Drain nozzle
26 Orientation
27 Cooling Extension
28 Rotable Head
29 Size H mm - -
30 Displacer Extens. (Size A) mm kb. 500 See figure 1.
31 Insertion Depth (Size B) mm . .
32 Nozzle height (Size C) mm 200
33 Construction - Float type
34 Displacer, Float Material Size 316 SST .
DISPLACER
FLOAT 35 Displacer Spring/Tube Material 316 SST
36 .
37 Tag Number Function * .
38 Manufacturer Model * *
39 Location Mounting In head of switch .
40 Supply Accuracy No < 0,5%
41 Switching point adjustable Inside
42 Adj. Range Set at -
43 Switches at decreases level
SWITCHES 44 Output Signal Connection 1 x SPDT Voltage free Terminal board
45 Switches load Surface 10 mA Gold plated
46 Hermetically seald Switches Yes
47 Dead Band Adjustable
48 Line fault detection outside Open circuit if I<100microA / Short circuit if I<6,5mA
49 Explosion Proof Enclosure EEx ia IIC T3 min. IP65
50 Conduit Connection with Cable glande **
51 .
52 .
OPTIONS
53 .
Notes:
Required documentation: 1,2,3,4,5,8,11
* To be filled by vendor.
** Double compression type cable gland

C Figure 1
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.5.1
1.00.02 - - Project No:
Specifications for instrumentation items 1.00.01 - - Page: 11/12
Designer Level measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki Rev.: 1.00.00
Vibration Fork Level Switch Instruments Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change LSH 002 New Rev.:
2 Service V1 Level maximum
3 Line No. V1
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R101/1
GENERAL
5 Ambient Temperature -25...+45 °C
6 Construction Type Vibration Fork
7 Location Tank on side
8 .
9 Oper. Density Bottom Fluid kg/m3 667 Light naphta
10 Oper. Density Top Fluid kg/m3 - -
11 Oper. Pressure Max. Pressure kPa-g 50 200
12 Oper Temperature Max. Temperature°C 31 60
PROCESS 13 Oper. Viscosity Bottom Top Fluid cP 0,298 -
CONDITIONS 14 Solids Type % . .
15 Flush up Superheat % . .
16 Design range: °C 70 kPa-g 400

16 Manufacturer Model * *
17 Body Material *
18 Gasket material MFR
19 Connection Flange Mat. Carbon steel
20 Connection nozzle DN50 Flanged PN 16 EN 1092-1 B1
BODY 21 Cooling Extension -
22 Rotable Head -
28 Height of Connection (Size H) mm 200 See figure 1.
30 Total Insertion Depth (Size A) mm 350 See figure 1.
29 Extension tube (B) mm 220 See figure 1.
31 Construction Surface According to vendor Standard
VIBRATION
FORK
32 Fork Material 316 SS Ti

39 Location In head of switch .

35 Type Supply * Loop powered
36 Output Signal Pulse Frequency modulation (PFM)
37 Switches load Construction . .
39 Switches at increases level Adjustable
SWITCHES
ELECTRONICS
40 Accuracy Dead Band < 5 mm max 0,5 mm
43 Explosion Proof Enclosure EEx ia IIC T3 min. IP65
46 Transient Protector .
48 Kommun. / Communication .
50 Conduit Connection with Cable gland **
.
44 Tag Number Function LXH 002 Isol., sig.conv.
45 Manufacturer Model * *
46 Location Input signal Control Room PFM 2 wire
47 Mounting Power Supply DIN TS35 rail 24 VDC
SECONDARY 48 Explosion proof Enclosure EEx ia IIC T5 min. IP 20
INSTR. 49 Communication Accuracy . < 0,5 %
50 Output Signal Connection 1 x SPDT / Voltage free Terminal board
51 Switches load Construction 6 A, 230 Vac Oxid free
52 Function Monitoring Relay Fault Sensor
53
53
OPTIONS
55
Notes:
Required documentation: 1,2,3,4,5,8,11
* To be filled by Vendor.
** Double compression type cable gland

H Figure 1
 MOL Group, R&M Division 1.00.03 - - MGS-S-REF-I-5.5.1
1.00.02 - -
Specifications for instrumentation items 1.00.01 - - 12/12
Designer Level measuring instruments 1.00.00 30.11.2011 M.Kocsmárszki 1.00.00
Level transmitters (Displacer type) (FFB) Rev Date Design. 30.11.2011
1 Tag Number New/Change KLT-1251 New Rev.:
2 Service Cold separator interface
3 Line No. D-105 F26X
GENERAL
4 Area Class. P & I D No. Zone 1 IIC T4 P11
5 Ambient Temperature -25...+45 °C
6 Construction Type Displacer type
7 Oper. Density Bottom Fluid kg/m3 700 - 770 Cold liquid
8 Oper. Density Top Fluid kg/m3 960 Sour water
9 Oper. Pressure Max. Pressure MPa-g 6,16 -
10 Oper Temperature Max. Temperature °C 40 -
PROCESS
CONDITIONS 11 Oper. Viscosity Bottom Top Fluid cP - -
12 Flush up Superheat % . .
13 Solids Type vol % - ppm 7175
14 Design range: °C 100 MPa-g 7,2
15 Manufacturer Model * *
16 Body or Cage Material C22.8 Note 1
17 Body or Cage Rating 600 #
18 Gasket material According to vendor -
19 Connection Flange Mat. C 22.8 Note 1
20 Upper nozzle 2" Flanged 600 # RTJ
21 Upper nozzle orientation See figure 1. Side
22 Lower nozzle 2" Flanged 600 # RTJ
23 Lower nozzle orientation See figure 1. Side
24 Vent nozzle 1" Flanged 600 # RTJ
25 Vent nozzle orientation See figure 1. Top
BODY / CAGE 26 Drain nozzle 1" Flanged 600 # RTJ
27 Drain nozzle orientation See figure 1. Bottom
28 Case Mounting According to vendor See figure 1.
29 Case Type H2S, H2O, NH3 6,0
30 Orientation See figure 1. Side
31 Cooling Extension According to vendor
32 Rotable Head Required
33 Size H mm 1219 -
34 Displacer Extens. (Size A) mm - -
35 Insertion Depth (Size B) mm . .
36 Measuring range (MR ) mm 1219 See figure 1.
37 Displacer Material Size 316 SST *
DISPLACER
38 Displacer Spring/Tube Material 316 SST
39 .
40 Displacer Material Size . .
FLOAT
41 Displacer Spring/Tube Material .
42 .
43 Location Mounting Sensor mount -
44 Supply bus powered
45 Output Signal Communication - Fundation Field Bus H1
46 Signal out charact. linear
47 at increased input signal Output signal is increasing
48 Max. Scale Scale mm - 0-100%
TRANSMITTER
49 Output Gage Digital Eng. Unit, linear Adjustable
50 Local Span and Zero Yes
51 Accuracy < 1,0%
52 Transient Protector In built
53 Explosion Proof Enclosure EEx ia IIC T4 IP65
54 Conduit Connection with Cable glande **
55 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
56 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
57 Function Blocks Other Blocks AI1, AI2, PID PID2
58 Diagnostic Information Yes
FOUNDATION
FIELD BUS H1***
59 Backup LAS funct. Polarity Sensitive Yes No
60 Channel number and description
61 Other requirement
62 IS parameters for field device, max. internal Ci, Ii *
63 Max input Voltage Ui / Current Ii Max Input Power Pi * *
64 NACE Certificate NACE MR-0175/RP-472
OPTIONS
65 Protection against vibration Yes
1.HC resistant carbon steel to be used and all welding to be PWHT.
Notes:
1" 300# RF
Required documentation: 1,2,3,4,5,8,11,13,15
* To be filled by Vendor.
** Double compression type cable gland
H

***: The DEV, DD and CF service revision level must also be give.
Drain and vent nozzle with 1" connection size please add as option
1. ábra
Figure 1 1" 300# RF
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specifications for instrumentation products

5. Level measuring
2. Differential pressure transmitters for level measuring

MGS-S-REF-I-5.5.2

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.5.2
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specifications for instrumentation products Date: 31.01.2014
5 Level measuring Page/Pages: 2/10
2 Differential pressure transmitters for level measuring

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release A. Balasa
0.00.01 01.10.2011 General review Z. Stanová Z. Stanová
1.00.00 30.11.2011 General issue Z. Stanová Z. Stanová
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.5.2
R&M Division

Contents

1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Accuracy ....................................................................................................................................................... 5
2 Technical requirements ......................................................................................................................................... 5
3 Application of differential pressure transmitters for level measurement functions ................................................ 6
3.1 Installation with one pressure tap ................................................................................................................. 6
3.2 Installation with dry upper tap ....................................................................................................................... 6
3.3 Installation with wet upper tap ...................................................................................................................... 6
3.4 Level measurement with the use of bubble tube .......................................................................................... 7
4 Application of diaphragm seal system for level measurement function ................................................................ 7
5 Transmitter diagnostics ......................................................................................................................................... 7
6 Datasheet to be provided for MMS (maintenance management system): ............................................................ 8
7 Appendix ................................................................................................................................................................ 8

Differential pressure transmitter for level measuring (sample) ..................................................................................... 9

Differential pressure transmitter for level measuring (FFB) (sample)......................................................................... 10

Rev 1.00.01 3/10

 SLOVNAFT a.s. MGS-S-REF-I-5.5.2
R&M Division

REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Instruction/maintenance manual with contents also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Metrology.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Metrology, if needed).
10. Vibration-proof certification according to EN 60751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard (EN 61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to EN 61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

4/10 Rev 1.00.01

 SLOVNAFT a.s. MGS-S-REF-I-5.5.2
R&M Division

LEVEL INSTRUMENTS BASED ON DIFFERENTIAL PRESSURE MEASUREMENT

PRINCIPLE

1 General
This specification covers the basic design requirements for level instruments based on differential pressure
measurement, installed in production units, and does not apply to high accuracy level (custody) measurements
used in tank farms.

1.1 Deviations
The applicable Project Specification may contain deviations from or changes to this document.
Deviation from the contents of this specification and the Project Specification shall be permissible only on the basis
of prior written permission of MOL Group.
The specified materials shall be in conformance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The ex-proof and IP protection classes of the instrument shall comply with the requirements of specification No.
MGS-M-REF-I-4 & MGS-S-REF-I-4.

1.3 Accuracy
The accuracy of the level instrument shall be equal or less than ±0.15% of span at ±20°C temperature variation up
to 50 bar pressure limit and at 5:1 range to span ratio.

2 Technical requirements
1. The instruments installed shall comply with all technological and mechanical requirements.
2. The signal ranges used shall comply with Specification MGS-M-REF-I-4 & MGS-S-REF-I-4
3. The instrument shall satisfy the requirements and regulations imposed by the fire and electric hazard
classification of the installation site.
4. Instruments with zero point shift and span setting possibility shall be used.
5. Provisions shall be made to allow the functional testing or removal of level instruments during operation.
6. Provisions shall be made to allow the filling or mechanical cleaning of the hook-up lines of level instruments
during operation.
7. Stable measurement conditions shall be ensured in the negative branches of level instruments.
8. Pressure taps shall be separated from vessels by means of flanged isolation valves. The T-piece ended
with a screwed plug shall be installed after the isolation valve.
9. Transmitters shall be mounted at the bottom nozzle of the vessel, below the pressure taps.
10. Transmitter shall be connected to a DN50 nozzle of the vessel by minimum ½” size piping. (In certain
cases to use of larger, 1”-2” size hook-up piping may also be justified.)
11. The hook-up piping shall be sloped to the transmitter. Slopping shall be minimum 1:10 and shall be
observed when influences of thermal expansion of process pipes, equipments and structures start to effect
as well.
12. The 5-way-manifold or a valve combination equivalent to a manifold shall be installed before transmitter (to
allow zero adjustment and the draining & filling of the hook-up lines, etc.).
13. The branch of transmitter open to atmosphere shall be equipped by a short ½” pipe oriented downwards.
14. The drain and vent pipe shall be oriented downwards. In the case of protection cabinet instrument
installation the drain and vent pipe shall extend out from the cabinet in its bottom or back side.
15. In case of aggressive or toxic fluids the drain or vent pipe shall be connected to the closed draining system.
Minimum ½” size valves and piping shall be used for the vent and drain systems.
16. The structural materials used for the casing and other wetted parts of level instruments shall be suitable for
application in hydrocarbon fluids. The casing material shall be at least steel casting and minimum 25 bar
shall be taken into consideration as its rating.

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17. Tongue-and-groove or ring-joint type flanges shall be used for fluids containing hydrogen and above 40
barg pressure, respectively.
18. If heat tracing is needed, then electrical heat tracing shall be applied. For steam tracing MOL group written
approval is needed.
19. Separate support brackets shall be installed for transmitters (transmitters shall not be supported by their
own hook-up piping).
20. The transmitter with diaphragm seal for direct mount shall be separated from vessels by means of flanged
isolation valve, if it is possible. In case of extended diaphragm seal the seal shall be installed direct to the
vessel. Its application entails the disadvantage that the seal cannot be removed, repaired and cleaned
during operation.
21. The transmitter with capillary style connection of diaphragm seal shall observe the following:
• The both capillaries of one transmitter shall have the same length; if is needed, the capillary should be
screw to the loop.
• The suitable laying of capillaries shall be ensured by their fixing to avoid of their breakage or stressing.
• The capillary with diaphragm seal shall be isolated. The heat tracing shall be applied due to character
of fill fluid, if necessary. Electric heat tracing shall be preferred.
22. The design and installation of the equipment shall meet the requirements stated in the manual (ensured by
the contracting party).
23. All instruments shall include integral transient protection.
24. For armouring cables double-compression type cable glands shall be used, providing for the connection of
the cable armour to the instrument casing and through it to the grounding system, clamping both the
external jacket of the cable and the insulation below the armour (if armoured cables are used).
25. The instrument casing shall be connected to the equipotential (EPH) grounding network of the process unit.

3 Application of differential pressure transmitters for level measurement functions

1. Special attention shall be paid to ensure that the transmitter allows the zero point to be shifted in both,
positive and negative branch, direction by a value suitable for the application when selecting the make and
model of the transmitter.

3.1 Installation with one pressure tap

1. The installation may be used for level measurement only in case of vessel with atmospheric pressure (open
vessel). In that case the negative branch of the differential pressure transmitter shall be open to
atmosphere; the positive branch shall be connected to measure hydrostatic pressure in the vessel.
2. There is possibility to use the pressure transmitter for the level measurement - in this case the 3-way
manifold or valve combination equivalent to a manifold shall be installed before transmitter.

3.2 Installation with dry upper tap

1. The installation may be used for level measurement in pressurised vessel where the pressure of gas above
measured liquid shall be taken into account. The upper tap shall not be overflow.
2. The upper tap shall be connected to the negative branch; the lower tap shall be connected to the positive
branch of differential pressure transmitter. The maximum pressure difference corresponds to maximum
level.
3. In such cases the risk of the appearance of material condensing in the negative branch of the differential
pressure transmitter at ambient temperature this line shall be heat traced and the condensing liquid
returned/drained to the process vessel from the high point.

3.3 Installation with wet upper tap

1. The installation may be used for level measurement in pressurised vessel where the pressure of gas above
measured liquid shall be taken into account. The upper tap shall be overflow.
2. The upper tap shall be connected to the negative branch; the lower tap shall be connected to the positive
branch of differential pressure transmitter. The maximum pressure difference corresponds to maximum
level.
3. In such cases the negative branch must be filled with a suitable fluid and facilities must be available for
shifting the instrument zero to the appropriate pressure value. The high point of the negative branch must
be drained to the vessel and the top section of the drain line heat traced, if necessary

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3.4 Level measurement with the use of bubble tube

1. Level measurement with the use of bubble tube is foreseen for applications where the process fluid
involves the risk of hook-up line plugging and the range is high (more than 2 m) (e.g. for inexpensive level
measurement of storage tanks operated in process units).
2. The bubbling system has to be designed so that the flow will not cause pressure drops, the outlet end of
the bubble tube will not be closed by deposit and the length of the tube will not be changed by bending.
3. The immersed tube must be solid.
4. The liquid to be measured shall not flow back into the bubbling medium (check valve is needed).

4 Application of diaphragm seal system for level measurement function

1. A diaphragm seal system consist of a pressure transmitter, a diaphragm seal, a fill fluid and either a direct
mount or capillary style connection
2. The use of diaphragm seal system should be considered in the following cases:
• The process temperature is higher than that permitted in the transmitter specification and it cannot be
reduced by the arrangement of the hook-up lines,
• The technological process or some part of it is highly corrosive,
• The properties of metallic materials in respect of failure due to sulphide stress (embrittlement) are
defined in the NACE Code.
• The material to be measured in highly viscous,
• The material to be measured contains a high amount of precipitating substances,
• The material to be measured is liable to freeze or crystallize,
• The negative branch requires filling too frequently, e.g. in the case of level measurement, etc
3. The following factor should be considered when the diaphragm seal system is selecting:
• Use larger diameter diaphragms to minimize the temperature effect
• Keep the capillary length as short as possible to reduce temperature effect. and response time.
• Select larger inside diameter capillaries to improve time response or select smaller inside diameter
capillaries to improve temperature performance
• Select the fill fluid that is the least viscous and has the smaller coefficient of thermal expansion case
the smaller measurement errors.

5 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
• Pressure (level) transmitter shall have plugged impulse line detection capability.
• All transmitters shall have statistical process monitoring.
• All transmitters shall have vibration, noise and drift monitoring.
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
• Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits

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o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

6 Datasheet to be provided for MMS (maintenance management system):

See app.

7 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

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 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.5.2
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 9/10
Level measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Diff. pressure transmitters for level measuring Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change LT-1242 New Rev.:
2 Service Hot Separator
3 Equipment No. Pipe class D-104 G36
GENERAL
4 Area Class. P & I D No. Zone 1 IIC T4 P06
5 Ambient Temperature -25...+45 °C
6 Construction Type DP type level meas. with seals
7 Oper. Density Top Fluid kg/m3 11 - 22,7 Vapor
8 Oper. Density Bottom Fluid kg/m3 629 - 660 Hot liquid
9 Oper. Pressure Max. Pressure MPa-g 6,5 -
10 Oper Temperature Max. Temperature °C 270 -
PROCESS
CONDITIONS 11 Oper. Viscosity Bottom Top Fluid cP - -
12 Flush up Superheat % . .
13 H2 content H2S content vol % 8,7 ppm 1160
14 Design range: °C 390 MPa-g 7,6
15 Manufacturer *
16 Model *
17 Adjustable range kPa 0…2,5 / 248,0
18 Set range kPa 0-82,9
19 Measuring distance mm 12799
20 Case Mat. Cast Alloy -
21 Supply Loop powered
22 Output Signal Communication 4...20 mA HART
23 Signal out charact. linear
24 at increased input signal Output signal is increasing
25 Failure mode alarm Output signal < 3,75 mA
26 Physical Layer Type - -
TRANSMITTER
27 Voltage expected Current draw - -
28 Function Blocks Other Blocks - -
29 Diagnostic Information -
30 Other requirement -
31 Output Gage Digital 0-100 % Adjustable
32 Accuracy ± 0,075% of span
33 Turn Down Ratio min. 50:1 -
34 Local Span and Zero Yes
35 Stability ± 0,125% URL / ± 0,125% URL
36 Conduit Connection for signal with Cable gland **
37 Explosion Proof Enclosure EEx ia IIC T5 IP65
38 Transient Protector In built
39 Element Type Service Diaphragm Diff. Pressure
40 Element Mat. AISI 316
41 Wetted parts material AISI 316
42 Fill fluid silicon oil
ELEMENT 43 Overr. Rating Body Rating 25 MPa 25 MPa
44 Process Connection For diaphragm seal
45 Connection Size According to vendor
46 Flange Mat. Connection - Side
47
48 Manufacturer Model * *
49 Connection Size 3" Flanged 1500 #, RTJ ANSI B16.35
DIAPHRAGM 50 Capillary Lenght Material mm 16000 1mm SST, Armored sleeving and support tubes
SEAL 51 Fill fluid Silicon oil, high temperature (400°C)
52 Element Material Flange Mat. AISI 316Ti (1.4571) AISI 316Ti (1.4571)
53 Corrosion, Erosion Corrosion allowance H2, H2S, H2O, NH3 6,0
54 Valve Manifold Material -
55 Counter Flange and Seal -
56 Compensation -
57 Spacer Ring with blow off valve -
OPTIONS
58 Blow off connection Size - - - -
59 Blow off valve -
60 NACE Certificate -
61 Plates material -
Notes:

*: To be filled by Vendor.
** Double compression type cable gland
 MOL Group, R&M Division 1.00.03 Doc. No: MGS-S-REF-I-5.5.2
1.00.02 Project No:
Designer Specifications for instrumentation items 1.00.01 Page: 10/10
Level measuring instruments 1.00.00 30.11.2011 Z. Stanová Rev.: 1.00.00
Diff. pressure transmitters for level measuring (FFB) Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change LT-8213 New Rev.:
2 Service LP amine absorber
3 Equipment No. Pipe class K-802 B25X
GENERAL
4 Area Class. P & I D No. Zone 1 IIC T4 P28
5 Ambient Temperature -25...+45 °C
6 Construction Type DP type level meas. with seals
3
7 Oper. Density Top Fluid kg/m 1,1 - 1,99 Sour gas
3
8 Oper. Density Bottom Fluid kg/m 971 - 1000 Amine
9 Oper. Pressure Max. Pressure kPa-g 510 -
10 Oper Temperature Max. Temperature °C 63 -
PROCESS
CONDITIONS 11 Oper. Viscosity Bottom Top Fluid cP - -
12 Flush up Superheat % . .
13 H2 content H2S content vol % - ppm -
14 Design range: °C 100 MPa-g 1
15 Manufacturer *
16 Model *
17 Adjustable range kPa 10,00
18 Set range kPa 0-26,3
19 Measuring distance mm 2743
20 Case Mat. Cast Alloy -
21 Supply Bus powered
22 Output Signal Communication - Foundation Field Bus - H1
TRANSMITTER 23 At increased input signal Output signal is increasing
24 Output Gage Digital 0-100 % Adjustable
25 Accuracy < 0,1% of span
26 Turn Down Ratio min. 50:1 -
27 Local Span and Zero Yes
28 Stabilitás / Stability < 0,2% URL for 12 months
29 Conduit Connection for signal with Cable gland *
30 Explosion Proof Enclosure EEx ia IIC T4 IP65
31 Transient Protector In built
32 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
33 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
34 Function Blocks Other Blocks AI1, AI2, PID PID2
35 Diagnostic Information Yes
FOUNDATION
FIELD BUS H1***
36 Backup LAS funct. Polarity Sensitive Yes No
37 Channel number and description
38 Other requirement
39 IS parameters for field device, max. internal Ci, Ii *
40 Max input Voltage Ui / Current Ii Max Input Power Pi * *
41 Element Type Service Diaphragm Diff. Pressure
42 Element Mat. AISI 316
43 Wetted parts material AISI 316
44 Fill fluid silicon oil
ELEMENT 45 Overr. Rating Body Rating min. 21,0 bar min. 21,0 bar
46 Process Connection For diaphragm seal
47 Connection Size According to vendor
48 Flange Mat. Connection - Side
49
50 Manufacturer Model . .
51 Connection Size 3" Flanged 300 # RF
DIAPHRAGM 52 Capillary Lenght Material mm 4000 According to vendor
SEAL 53 Fill fluid According to vendor
54 Element Mat. Flange Mat. AISI 316 AISI 316
55 Corrosion, Erosion Corrosion allowance H2O, H2S, H2 3,0
56 Valve Manifold Material -
57 Counter Flange and Seal -
58 Compensation -
59 Spacer Ring with blow off valve -
OPTIONS
60 Blow off connection Size - - - -
61 Blow off valve -
62 NACE Certificate NACE MR-0175/RP-472
63 Plates material -
Notes:
*: To be filled by Vendor.
**: Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give.
1., Gold plated diaphragm
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specifications for instrumentation products

5. Level measuring
3. Radioactive measuring instruments

MGS-S-REF-I-5.5.3

Rev 1.00.00

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.5.3
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TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.00
5 Specifications for instrumentation products Date: 30.11.2011
5 Level measuring Page/Pages: 2/8
3 Radioactive measuring instruments

Release list

Rev. Date Description Edited Verified Approved

0.00.00 20.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
remark: includes the contents of cancelled book 6.9
1.00.00 30.11.2011 General issue S.Skalszky L.Pallagi

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.5.3
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Contents
Release list ................................................................................................................................................................... 2
Required documentations ............................................................................................................................................. 4
Requirements of Radioactive Instruments.................................................................................................................... 5
1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
1.3 Governing Standards .................................................................................................................................... 5
2 Measurement Principle .......................................................................................................................................... 5
2.1 Benefits of the Measurement Principle ......................................................................................................... 5
3 Technical Requirements ........................................................................................................................................ 6
4 Design of Radioactive Measuring Instruments/Systems ....................................................................................... 7
4.1 Level Measurement & Interface Level Measurement ................................................................................... 7
4.2 Density Measurement ................................................................................................................................... 7
5 Transmitter diagnostics ......................................................................................................................................... 7
6 Training of personnel operating and maintaining/servicing the instrument ........................................................... 8
7 Procurement, Authorization, Storage and Installation ........................................................................................... 8
8 Appendix ................................................................................................................................................................ 8

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REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (With the type, serial number and the important characteristic of instrument) (or
according to ISO 9001: 2000).
2. Manual with contents according to IEC 278. Manual to include among others the:
Cross sectional drawings with list of parts.
List of special tools and devices.
Electrical connection schemes and wiring diagrams.
3. The bid documentation shall include outline drawings with the following information:
Overall dimensions, type of connections, materials, ratings.
4. Certificate of hydrostatic pressure test (PED).
5. Certificates of explosion-proof components - ATEX (Directive 100A) issued by accredited authority.
6. Type test certificate
7. Calculation datasheet.
8. Calibration datasheet.
9. Certificates of the structural materials for wetted parts. (EN 10204 3. 1B)
10. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
11. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
12. Certification of compliance with Fire-Safe Test requirements.
13. CE declaration of conformity.
14. Certificates according to IEC61508 (MTBF – Main Time Between Failures, DC – Diagnostic Coverage,
etc.).
15. see App.
16. see App.
17. Sources shall be sealed in a double-walled, welded stainless steel capsule.
18. The encapsulation shall correspond to performance class C66646 as per ISO2919.
19. Sealing test certificate issued by PTB.
60
Co , no need for regular sealing test.
137
Cs , every 3 years sealing test required.
20. Shipping according to GGVS/ADR and DGR/IATA guidelines.
21. Delivery instruction TI 264F/00/en in source container
22. Work certificate as per EN10204-2.2

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REQUIREMENTS OF RADIOACTIVE INSTRUMENTS

1 General
This specification covers the basic design requirements for radioactive instruments systems installed in refining
units.

1.1 Deviations
The applicable Project Specification may contain deviations from or changes to this document.
Deviation from the contents of this specification and the Project Specification shall be permissible only on the basis
of prior written permission of MOL Group.
The specified materials shall be in conformance with the vessel/pipe class specification system, standards and
requirements of the project.

1.2 Protection
The ex-proof and IP protection classes of the instrument shall comply with the requirements of specification No.
MGS-M-REF-I-4 & MGS-S-REF-I-4 “Ambient conditions and required protection classes”.

1.3 Governing Standards

According to chapter MGS-M-REF-I-4 & MGS-S-REF-I-4.

2 Measurement Principle
The strength of the radiation emitted by the radioactive radiation source fitted in the instrument is decreasing while
passing through the material to be measured. The rate of the decrease depends on the actual density or level and
interface level of the measured material because of the constancy of the strength of the radiation source and the
length of the path of the radiation. The measured signal corresponds directly to the actual level of the material.
Radioactive measuring instruments shall comprise the following assemblies:
radioactive radiation source equipped anti-radiation enclosure,
detector installed in suitable geometric arrangement,
signal processing unit.
The radioactive radiation source may be cobalt Co-60 or cesium Cs-137.
The safety of the operating personnel is assured by the installation requirements covered in the standards
applicable to the instrument (selection of radiation source with low radiation energy, application of scintillation
detectors and anti-radiation, beam-shielding enclosure).

2.1 Benefits of the Measurement Principle

No direct contact (no wetted parts),
No moving parts,
Low maintenance requirements,
Easy calibration,
Applicable on vessels of any shape,
Measurement range may exceed even 10 meters,
Measurement of high temperatures of materials,
Measurement of materials under high pressure or vacuum,
Measurement of corrosive materials,
The measurement is not affected by the layout of agitators, heating coils, etc.,
The instrument can be installed on refractory lined vessels,
The measurement is not affected by the physical and chemical properties of the

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3 Technical Requirements
1. The vendor or its representative shall mount the radiation source and the detector on the supports made by
the equipment manufacturer.
2. Purchaser shall provide the following data for the Supplier in the tender documentation issued for bidding:
Type and dimensioned drawing of the vessel,
Material and thickness of the vessel wall,
Density and thickness of outside vessel insulation,
Position and dimension of measurement range,
Density and special properties of the measured material,
In pressurized systems, the density of the gas above the liquid under operating conditions,
Maximum rate of level change,
Ambient temperature range of detector,
Elements installed inside the vessel, such as agitator blades, tube coil, etc.
3. The scintillation counter shall cover the entire length of the measurement range.
4. The signal range of the instrument shall comply with specification MGS-M-REF-I-4 & MGS-S-REF-I-4
„Signal Range, Measurement Range, Measurement Units, Accuracy Requirements”.
5. The instrument shall continuously monitor itself during operation, include transmitter alarm output (DCS or
ESD specific value). In the case of communication based on HART or FF it shall communicate events,
diagnostic errors to the maintenance (FIMS) system.
6. The radiation source and the detector shall be able to operate in the temperature range from –25 to +60Cº.
In the case of higher process temperatures cooling shall be provided, if it’s technically required. The signal
processing unit will be located in a control room environment. The detector shall be protected against direct
sunlight, if it’s technically required.
7. Shielding of radiation source:
The radiation source applied in industrial environments shall be encased in a massive chamber
made of corrosion-resistant material (the chamber shall be lockable, with a hole directed at the
detector).
The hole of the radiation source shall be closed during unit shut-down in order to avoid
endangering the personnel working inside the vessel. The radiation source shall be removed to the
location assigned for this purpose when the instrument is taken out or service for prolonged
periods.
8. Signboard warning of the presence of the radioactive source shall be located in the surrounding of the
source.
9. A rod-shaped radioactive source is a stretched wire made of some radioactive metal. The level in a vessel
with complex measuring geometry can also be measured by winding the radioactive wire at a special angle
of inclination.
10. A nameplate shall be mounted on the source support, indicating the following data:
Serial No. of source,
Name of isotope,
Activity of isotope,
Manufacturing date of isotope,
Dosage rate within 1m radius,
Shielding material,
Thickness of shielding material,
Type of shielding,
Manufacturer of shielding.
11. Instrument calibration and control testing. Vendor shall supply a calibration/testing system developed for
the particular application and make it available at the site (e.g. lead plates sized for thickness), enabling the
simulation of the zero and maximum values of the liquid level in the vessel.
12. ATEX certificate shall be supplied with the instrument.

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13. For armoured cables double sealing cable glands shall be used, gripping both the jacket of the cable and
the insulation inside the armour, and ensuring connection of the cable armour to the instrument case..
(when armoured cables will be used.)
14. Provisions shall be made for connecting the instrument to the grounding network of the unit.
15. Instrument shall have transient protector.

4 Design of Radioactive Measuring Instruments/Systems

4.1 Level Measurement & Interface Level Measurement
1. The use of radioactive level instruments is preferred for the following services:
aggressive fluids (e.g. HF)
high temperature
high pressure
high viscosity (e.g. bitumen)
particulate matter (e.g. catalyst)
no suitable connection nozzles can be provided on the particular process vessel (e.g. tank or
column bottom).
2. Absorption-based level instruments convert level changes to proportional variations in absorbed radiation
with the use of suitably arranged sources and detectors. Tracking-type level instrument systems comprise
radiation sources and detectors installed in guide tubes mounted on opposite sides of the vessel. Systems
controlled by servomechanisms are applicable also for the measurement of interface levels.
3. In the case of level measurement systems based on -ray reflection the source and the detector form a
single assembly. The servomechanism moves this assembly in a single guide tube installed inside the
vessel.
4. The design of the radioactive level switches most widely used in the oil industry employ absorption or
reflection based measurement principles.
5. The measurement principle (absorption or reflection based) should be chosen depending on the size of the
process vessel and the type of the radiation source as a function of the physical & chemical properties of
the fluid to be measured.
6. Absorption-type measurement systems indicate the appearance or absence of the fluid to be measured in
a measurement section (e.g. process vessel or small tank) determined by the geometrical locations of the
radiation source and the detector. Radioactive level switches using the reflection-based measurement
principle, suitable also for switching at preset interface levels, should be used for large diameter equipment
(tanks & drums) and for process vessels containing particulate matter (e.g. catalysts).

4.2 Density Measurement

In special case, radioactive measuring instruments can be used for density measuring. Requirements:
1. The physical and chemical properties of the fluid to be measured have to be taken into consideration for
the selection of high accuracy radioactive density meters.
2. Density meters should be installed on vertical line sections (providing a for large size pipes horizontal
radiation path) in order to avoid measurement errors caused by gas bubbles.

5 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
Transmitter shall have statistical process monitoring.
Transmitter shall have vibration, noise and drift monitoring.
plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error

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Transmitter device status (including but not limited to):

o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

6 Training of personnel operating and maintaining/servicing the instrument

The instrument shall be operated only specialists in possession of the appropriate knowledge and qualification.
Personnel working with radioactive materials shall have completed a special training course required for this task,
and the respective qualification examination shall be repeated at the intervals stipulated in the applicable statute.

7 Procurement, Authorization, Storage and Installation

Supplier shall observe requirements of national legislative and the authority regulations in force in respect of
purchasing, procurement of permits & approvals, storage and installation.
The end-user shall appoint the employee responsible for the instrument & source. The employee responsible for
the source shall provide confirmation of having completed successfully the required special training course and
being in possession of a valid qualification certificate.

8 Appendix
ad Required documentation:
ad 15: Import permit issued by the Health Protection Body (Ministry of Health).
ad 16: Installation and permit issued by the Health Protection Body (Ministry of Health, State Regional Hygienist)

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SLOVNAFT a.s.
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MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

5. Level measuring
4. Radar Gauges

MGS-S-REF-I-5.5.4

Rev 1.00.00

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.5.4
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.00
5 Specification sheets for instrumentation items Date: 30.11.2011
5 Level measuring Page/Pages: 2/7
4 Radar Gauges

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.01.2007 Basic release Balasa Á.
0.00.01 01.10.2011 General review Z. Stanová Z. Stanová
1.00.00 30.11.2011 General issue Z. Stanová Z. Stanová

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
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Contents

Release list ................................................................................................................................................................... 2

Required documentations ............................................................................................................................................. 4
Radar Gauges .............................................................................................................................................................. 5
1 General .................................................................................................................................................................. 5
1.1 Deviations ..................................................................................................................................................... 5
1.2 Protection ...................................................................................................................................................... 5
2 Guided wave radar (GWR) level gauges .............................................................................................................. 5
2.1 Interface measurement of level .................................................................................................................... 5
2.2 Accuracy requirement ................................................................................................................................... 5
2.3 Technical requirements for guided wave radar level gauges ....................................................................... 5
3 Frequency Modulated Continuous Wave (FMCW) radar level gauges ................................................................. 6
3.1 Accuracy requirement ................................................................................................................................... 6
3.2 Technical requirements for FMCW level gauges.......................................................................................... 6
4 Transmitter diagnostics ......................................................................................................................................... 7

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REQUIRED DOCUMENTATIONS

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Instruction/maintenance manual with contents also the following:
Cross sectional drawings with list of parts.
List of special tools.
Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to EN 60751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1B)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard (EN 61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to EN 61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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RADAR GAUGES

1 General
This specification covers the basic design requirements for radar level instruments installed in production units and
does not apply to high accuracy level measurements used in tank farms.

1.1 Deviations
The applicable Project Specification may contain deviations from or changes to this document.
Deviation from the contents of this specification and the Project Specification shall be permissible only on the basis
of prior written permission of MOL Group.
The specified materials shall be in conformance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection
The ex-proof and IP protection classes of the instrument shall comply with the requirements of specification MGS-
M-REF-I-4 & MGS-S-REF-I-4.

2 Guided wave radar (GWR) level gauges

1. The system is based on the application of low frequency electromagnetic waves. The GWR, is installed on
the top of the tank or chamber and the probe usually extends to the full depth of the vessel. The measuring
instrument emits pulse of microwaves through the antenna and these are reflected from the surface of the
liquid with a delay proportional to the distance to be measured. The time interval between the emission of
pulse and the receipt of the reflected pulse is proportional to the distance of the liquid level to be measured
from the emitter.
2. The emitted radar beam is reflected in the measured space from the interface between fluids with different
dielectric constants (liquid/gas or liquid/liquid). The intensity of the reflected beam is the function of the
dielectric constant (Єr) of the fluid: in the case of a lower Єr value the intensity of the reflected radar signal
is weaker.
3. The electromagnetic noises of different origins and frequencies can also be filtered out in order to ensure
the required accuracy of the measurement.

2.1 Interface measurement of level

GWR level gauges are suitable also for the interface measurement of levels (oil and water or other liquid with
significant dielectric differences)
Preconditions for the performance of this measurement:
The dielectric constant of the upper phase should be known and stable unchanging.
The dielectric constant of the upper phase should be smaller that the dielectric constant of the lower
phase.
The maximum measuring range is limited by the dielectric constant of the upper phase.
GWR level measurements do not detect sediments accumulated in the bottom water of vessels.

2.2 Accuracy requirement

The accuracy of guided wave radar level gauges depends on the type of probe employed; ± 5 mm up to 5 m
measurement range, ± 0.1% of the measured distance above 5 m level range.

2.3 Technical requirements for guided wave radar level gauges

1. The instrument installed shall comply with all technological and mechanical requirements.
2. Structural materials shall be selected in compliance with the applicable piping class specifications.
3. The vendor’s specifications applicable to position and mounting for the installation of the transmitter and
antenna shall be taken into consideration for the design of the mechanical connection.
4. The antenna/transmitter should be mounted in general on the flanged or threaded nozzle in vertical
position.
5. The probe shall cover the total length of the measured level range.
6. The signal range of the instrument shall comply with Specification MGS-M-REF-I-4 & MGS-S-REF-I-4.

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7. The instrument shall monitor itself continuously during its operation, generate transmitter failure alarms (as
values specific to DCS or ESD systems), include HART or FF based communication and communicate
diagnostic fault information to the field instrument maintenance (FIMS) system.
8. In the case of long measuring ranges a flexible probe shall be used. In that case the end of the probe shall
be fixed to the vessel bottom.
9. Top and bottom dead zones of measurement ranges (values are depending on product selection and
design of vessel) shall be taken into consideration.
10. Emulsion layers formed at the interface of two liquids may cause measurement problems. The problems of
measurement technique and the design of the suitable technical solution shall be taken into consideration.
11. The application of coatings on the surface of rod antennas may cause problems (lower measurement
accuracy), therefore their use shall be taken into consideration.
12. Transmitters shall be able to function in the ambient temperature range of min. –20°C to +40°C.
13. Transmitters shall include features allowing the verification of the measuring range (zero and span) during
operation.
14. Lightning and surge protection shall be provided for the instruments.
15. The instruments shall be equipped with double compression type cable glands (for the cable armour and
cable jacket), when armoured cables will be used.
16. Provisions shall be made for connecting the instrument casing to the grounding network of the process unit.

3 Frequency Modulated Continuous Wave (FMCW) radar level gauges

1. Frequency Modulated Continuous Wave (FMCW) radar level gauges are used for the implementation of
high accuracy and high span level measurements.
2. This system is based on the employment of high frequency electromagnetic waves. FMCW radar emits the
standard signal pulses or pulse packs through the antenna, which is reflected from the surface of the liquid
with a delay depending on the distance to be measured. The frequency difference time delay between the
emitted and reflected / received waves are proportional to the distance between the instrument and the
liquid level to be measured.
3. The emitted radar beam is reflected in the measured space from the interface(s) between fluids with
different dielectric constants. The intensity of the reflected beam is the function of the dielectric constant
(Єr) of the fluid: in the case of a lower Єr value the intensity of the reflected radar signal is weaker.
4. The electromagnetic noises of different origins and frequencies can also be filtrated out in order to ensure
level measurements of acceptable accuracy.

3.1 Accuracy requirement

The accuracy of frequency modulated radar level gauges shall be minimum ± 5 mm.

3.2 Technical requirements for FMCW level gauges

1. The instrument installed shall comply with all technological and mechanical requirements.
2. Structural materials shall be selected in compliance with the applicable piping class specifications. The
pressure-temperature curve of the antenna shall also be taken into consideration for the selection of the
antenna.
3. The vendor’s specifications applicable to position and mounting for the installation of the transmitter and
antenna shall be taken into consideration for the design of the mechanical connection.
4. The signal range of the instrument shall comply with Specification MGS-M-REF-I-4 & MGS-S-REF-I-4.
5. The instrument shall monitor itself continuously during its operation, generate transmitter failure alarms (as
values specific to DCS or ESD systems), include HART or FF based communication and communicate
event information to the field instrument maintenance (FIMS) system.
6. Multi-point temperature detection system shall be connected to the transmitter in the case of temperature
compensated measurements.
7. The size and extension of the tank nozzle shall be taken into consideration for the
selection of the level instrument in order to avoid the reflection of eventual disturbance waves.
8. It shall be taken into consideration that the spacing between the antenna and vessel wall depends on the
frequency and antenna type selected.
9. Transmitters shall be able to function in the ambient temperature range of min. –20°C to +40°C.

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10. Transmitters shall include features allowing the verification of the measuring range (zero and span) during
operation.
11. Lightning and surge protection shall be provided for the instruments.
12. The instruments shall be equipped with double compression type cable glands (for the cable armour and
cable jacket), when armoured cables are used.
13. Provisions shall be made for connecting the instrument casing to the grounding network of the process unit.
14. Antennas shall be mounted inside the vessel in vertical position during installation and the transmitter shall
be fixed within the angle of beam. Beams shall be remote from the inlet and outlet nozzles of the vessel.
15. The use of standpipes is recommended for application for boiling fluid, or for extremely turbulent condition
in vessel. The pipe reduces foam and also increases surface reflection.
16. The structural material of the standpipe shall be conductive material. Standpipes shall be clean, free of
deposits and continuous. Their design shall be agreed with the vendor.

4 Transmitter diagnostics
Level 1, 2 minimum diagnostic requirements:
All transmitters shall have statistical process monitoring.
All transmitters shall have vibration, noise and drift monitoring.
plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
Field communication status (including but not limited to):
o Parity error
o Overrun error
o Framing error
o Checksum error
Transmitter device status (including but not limited to):
o Field device malfunction
o Configuration changed
o Cold start
o Analog output current fixed
o Analog output saturated
o Primary variable out of limits
o Non-primary variable out of limits
o Sensor failure
o Sensor malfunction
o Sensor disconnected
o Electronic Board failure
o Bad grounding
o Operating conditions out of specifications (e.g. cell temperature)

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MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification for Instrumentation Items

6. Valves

MGS-S-REF-I-5.6

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.6
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification for Instrumentation Items Date: 31.01.2014
6 Valves Page/Pages: 2/4

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.12.2005 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 12.12.2008. Issued for comments
0.00.03 06.05.2009. Issued for approval
1.00.00 30.11.2011 General issue S.Skalszky L.Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.6
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Contents
Release list ................................................................................................................................................................... 2
BOOK BREAKDOWN ................................................................................................................................................... 4

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BOOK BREAKDOWN

Description Identifier Rev.:

Valves MGS-M-REF-I-5.6 1.00.01
Control valves MGS-M-REF-I-5.6.1 1.00.01
On-Off valves MGS-M-REF-I-5.6.2 1.00.01

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MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification for Instrumentation Items

6. Valves
1. Control Valves

MGS-S-REF-I-5.6.1

Rev 1.01.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.6.1
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.01.01
5 Specification for Instrumentation Items Date: 29.02.2016
6 Valves Page/Pages: 2/13
1 Control Valves

Release list
Rev. Date Description Edited Verified Approved
0.00.00 20.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
1.00.00 30.11.2011 General issue S. Skalszky L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology
1.01.01 Z. Stanová R. Kopálek Head of
29.02.2015 Revision
Maintenance

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.6.1
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TABLE OF CONTENTS
1 General: ................................................................................................................................................................. 5
1.1 Deviations: .................................................................................................................................................... 5
1.2 Applicable codes & standards: ..................................................................................................................... 5
2 Technical requirements ......................................................................................................................................... 5
2.1 Sizing ............................................................................................................................................................ 5
2.2 Type selection ............................................................................................................................................... 5
2.3 Valve body design ........................................................................................................................................ 6
2.4 Bonnet........................................................................................................................................................... 6
2.5 Internal materials .......................................................................................................................................... 6
2.6 Valve characteristics ..................................................................................................................................... 7
2.7 Tightness requirements ................................................................................................................................ 7
2.8 The effect of flow direction ............................................................................................................................ 7
2.9 Positioners .................................................................................................................................................... 7
2.10 Hand-wheel and bypass ............................................................................................................................... 7
2.11 Actuators ....................................................................................................................................................... 7
2.12 Limit stops ..................................................................................................................................................... 8
2.13 Other ............................................................................................................................................................. 9
2.14 Control valve diagnostics .............................................................................................................................. 9
2.15 Nameplate................................................................................................................................................... 10
3 Datasheet to be provided for MMS (maintenance management system): .......................................................... 10
4 Appendix .............................................................................................................................................................. 10

Control valves specification sheet .............................................................................................................................. 11

Regulator specification sheet .................................................................................................................................... 12
Control valves (FFB) specification sheet ................................................................................................................... 13

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REQUIRED DOCUMENTATIONS:
1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Manufacturer’s declaration about Dynamic Control Performance requirements.
17. SIL Certification according to EN 61508 or certification of proven in use / prior use requirements according
to EN 61508 / EN 61511.
18. Safety Manual for safety Equipments.

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TECHNICAL REQUIREMENTS FOR CONTROL VALVES

1 General:
This specification describes the basic design requirements regarding control valves installed in production facilities.

1.1 Deviations:
The Project Specification may include differences from or modifications to these requirements.
Any deviation from the contents of this specification and project specifications shall be allowed only with the written
authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and other
requirements of the project.
Protection:
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Site conditions and required protection classes”.

1.2 Applicable codes & standards:

According to chapter MGS-M-REF-I-4 & MGS-S-REF-I-4.

2 Technical requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The signal ranges applied shall correspond to the requirements set forth in Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Signal range, measuring range, scale data, accuracy requirements”.
3. The instrument shall conform to the requirements and specifications set by hazardous area classification.

2.1 Sizing
1. At the design the sizing of the control valves Cv shall be done according to ISA S75.1 or one
manufacturer’s standard instructions. Calculated Cv’s shall be verified by vendors acc. the manufacturer’s
standard, reasonably in compliance with the requirements of the relevant standards. On the basis of case-
by-case agreements, valve sizing procedures which differ from the above may also be used.
2. The valve Cv selected must be larger than the maximum calculated Cv. When selecting a valve, the
characteristics of the selected valve and the maximum value of the flow to be regulated shall be considered
as well. The combination of valve Cv and characteristic should generally produce a valve operating range
of 10 to 80% of travel for all of the flow conditions specified.
3. Butterfly valves shall be sized so as to have the maximum flow at 60° opening angle.
4. The noise level of the control valves shall be calculated at the operating conditions (according to ISA
S75.17 or IEC 60534-8-3/IEC 60534-8-4). The estimated noise level shall be verified based on final design
criteria and vendor’s/Contractor’s final calculations. The noise level calculations of control valves shall be
done acc. to the manufacturer’s instructions based on relevant standards. In order to avoid damage to
hearing noise shall not exceed the value of 85dB (C), as measured at 1m distance from the source. If the
noise level of certain equipment is higher, the suitable technical solution for the noise reduction shall be
found.

2.2 Type selection

Following types of valve shall be take into consideration:
1. Usually single seat, sliding stem globe control valves - shall be used, those are balanced or unbalanced
valve constructions:
• Unbalanced, single ported globe valves shall be cage, post or stem guided. Stem guided valves above
2” shall be used only with written permission from client.
2. Eccentric plug valves (for general application, for example; Camflex, V-ball, etc..)
3. Use of other types of valves:

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• Butterfly valves: for low pressure drop or large diameter applications.

• Characterized ball valve (for instance V-notched ball valves: in the case of polymerizing or crystallizing
liquids, or liquids containing solids.
• Angle valves: in the case of large pressure drops, coke development and erosion.
• Three-way valves: for the control of more than one lines.
• Special valves (angle, multistage, etc.): in the case of very large pressure drop, very high flow rate or
high noise level, etc.

2.3 Valve body design

1. Construction materials shall be specified per ASTM or DIN standard according to mechanical design.
2. Valves in sour service shall comply with NACE standard MR-0175 requirements.
3. The valve body of the control valves shall be made from cast steel at least, or from materials meeting the
requirements of piping class.
4. Following connection type shall be used;
• flanged (generally),
• wafer
• welded (only for written request)
• lug design
Slip flanges shall be used only with written permission from client
5. The flanges shall comply with the requirements of the piping class, their construction according to
requirements of standards EN 1092 or B16.5/ASME B16.47, depending from the mechanical design
documentation.
6. In the case of requirements for sizes smaller than DN 25, reduced valve seat shall be used. Sizes over
DN300 require case-by-case agreement with Client.
7. The flow direction of the fluid shall be permanently marked on the valve body.

2.4 Bonnet
1. The packing-gland of the control valves shall be of screwed design. Selection of packing material shall be
based on process medium and design condition.
2. The valve manufacturer is responsible for verifying that the packing is suitable for the process fluid,
operating conditions and contaminant materials listed.
3. In the case of fluid operating temperature above max. or below min. from suggested temperature by
manufacturer for the standard bonnet, extended bonnet shall be used.
The bonnet - even in the case of cooling fin or extension neck design - shall be made from the same
material as the valve body, with a one-piece design or bolted design and confined seals. The application of
threaded bonnets is not allowed.
4. In the case of process fluids polluting the environment or slightly harmful to health, the packing-gland shall
be of “environmental design”, automatically compensating for the wear of the seals during operation in this
way helps to reduce fugitive emissions.
5. In case vacuum or toxic medium shall be used airtight packing gland (bellows seal) in combination with
other type of packing gland design.

2.5 Internal materials

1. The selection of construction materials, the fluids corrosive and erosive effect shall be considered. The
seats and plug of the control valves shall be made from materials of better quality than the piping materials,
but at least from stainless steel, if process requirement is not against it. In special case the corrosion
allowance shall be considered.
2. The seats and plug shall be hard metal plated in the following cases. When selecting the material, the
corrosive and erosive effects of the process medium shall be taken into consideration as well.
• If the process medium contains solid contaminants.
• If the possibility of cavitation or flashing exists.
• If the pressure drop across the valve exceeds 10 barg in the case of liquids, gases and hydrocarbon
vapours, or 5 barg in the case of steam.

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2.6 Valve characteristics

The valve characteristics shall be optimized based on the consideration of the control task.
The following characteristic types can be used: Equal percentage, Linear, Quick-opening or Modified parabolic.
Attention should be given that the characteristic of the valve shall be determined by the internal parts of
construction.

2.7 Tightness requirements

1. Tightness requirement shall be specified, tested and certified in accordance FCI 70-2 standard
requirements.
2. Specified shut-off class shall be tested at full specified shutoff dp. If no shutoff dp is specified, then the
leakage shall be tested with the maximum specified inlet pressure and 0 pressure at the valve outlet.
3. In the case of general applications single-seat valves those of class IV according to relevant standard FCI
70-2, and double-seat valves shall meet the requirements of tightness class II.

2.8 The effect of flow direction

In the case of control valves, the flow shall generally have an effect as follows:
• In the case of angle valves, towards the direction of closing
• In the case of rotary shaft valves with eccentric plugs, towards the direction of the fail position.
• In the case of other valves (ball & plug valves, etc) towards the direction of opening.

2.9 Positioners
1. Positioners shall be used on all modulating control valves in order to achieve the dynamic performance
requirements
Control valves shall in each case be equipped with smart positioners
(HART, SMART, FIELDBUS)
2. Positioner control signal can be electronic 4-20mA HART, pneumatic or of the digital Fieldbus type as long
as the communication protocol used can update the control valve positioner at least ten times per second.
3. The positioner shall have at least gauge instruments to indicate air supply pressure and output signal.

2.10 Hand-wheel and bypass

1. All control valves shall have bypass lines; any deviation from this requirement shall be allowed only upon
Client’s separate written request. A globe valve with regulating characteristic shall be installed in the
bypass line. The bypass line shall be equipped with drain/vent valves.
2. If for any reasons no bypass line can be installed, the control valve shall be equipped with a hand-wheel.
3. Handwheels for sliding stem valves shall be continuously connected, with neutral position, side mounted
type.
4. Handwheels for rotary valves shall be suitable for intermittent manual operation.

2.11 Actuators
1. Signal ranges of control valves can differ on the basis of the manufacturer’s instructions. The multiples of
the signal range of 0.2…1.0 barg (for instance 0.4…2.0) can be accepted as operational range, or in
special cases a reduced signal range (for instance 0.2…0.6 or 0.6…1.0 barg).
However, in all cases the signal range shall be between 0.2 and 3.0 barg.
2. The valves actuators shall supply the minimum seat load, that to the process induced force at the specified
max. shut-off conditions plus the force required to overcome the packing friction.
3. The valve vendor shall attached the actuator sizing documents to the offer.
4. Types of actuators:
• Diaphragm actuators
• Piston actuators
• Asynchronous Motor driven actuators (MOV)
• Electrohydraulic actuators

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2.11.1 Diaphragm actuators:

1. The diaphragm houses shall be of resistant steel construction suitable for oil industry atmospheres. The
diaphragm shall be made of formed material resistant to ageing and pressure loads, and shall tolerate
changes in the environmental temperature within the range set forth in the project specifications.
2. The effective area of the diaphragm shall be constant in the full stroke range.

2.11.2 Piston actuators

1. These actuators shall be equipped with integral force balancing positioners. The pistons and cylinders shall
be made from a material suitable for the pressure of the control fluid.
2. The auxiliary unit (power pack) necessary for this actuator shall be provided together with the actuator.
3. In the case of pneumatic actuators proper fail action of the valve shall be ensured, as required by the
process function, in the case of air supply or actuator failure. This requirement shall be met by spring return
or a pneumatic accumulator.
4. To avoid liquid hammers, rapid closing shall be avoided.

2.11.3 Electric motor operated valves (application to be approved)

1. Asynchronous-motor driving unit with integral reversing switch shall be used as electrical actuator.
2. The drive unit shall have start/stop, local/remote switches, open/closed position detectors, and remote
start/stop facility.
3. Mechanical overload shall be prevented by limit switches incorporated in the control circuit of the drive unit,
and with torque-switches.
4. The use of hardwired control and bus system based status display is recommended. In the case of control
by shutdown system, it shall be equipped with direct hardwired ESD input.
5. Unless otherwise agreed, the motor shall be supplied with three-phase power (400 V AC).
6. The enclosures for the motor, switches and detectors shall be explosion-proof (EEx d) in hazardous areas.
7. The motor-driven valves shall have hand-wheels engaged with clutches for operation in the case of power
failure, and means for padlocking to avoid unauthorised operation.
8. The opening or closing pulses shall be of minimum 100 ms duration. To receive the opening or closing
pulses 24V DC relays shall be installed, the contacts of which act in the control circuits.
9. The driving unit shall have space heating installed.

2.11.4 Electrohydraulic actuators

10. In the case of electrohydraulic actuators proper fail action of the valve shall be ensured, as required by the
process function, in the case of power supply failure or the breakdown of the actuator. This requirement
shall be met by hydraulic accumulator, electrical battery or any other special solution.
11. Automatic actuators shall be equipped with local manual operating means (e.g. integral hand pump, or
connection for external hand pump).
12. For electrohydraulic actuators, the motor shall be supplied with 3–phase power (400 V AC) unless
otherwise agreed.
13. In hazardous areas the casing of the motor, switches and sensor shall be of pressure-proof enclosure (EEx
d).

2.11.5 Position indicator (if required)

1. The valves shall be equipped with a visual indicator indicating the position of the plug.
2. For limit position indication, –in fully open and/or fully closed valve – normally closed contacts shall be
used.
3. The limit switches shall be actuated directly from the stem/shaft and shall be adjustable.
4. The limit switches shall be suitably insensitive to vibrations both from mechanical and functional points of
view shall be of weather-proof design (IP 65), and they shall meet the requirements of the hazardous area
classification. Proximity type switches shall be used in intrinsically safe (EEx i) design. Integral type limit
switch in the built-in positioner shall be used only with written permission from client

2.12 Limit stops

• Limit stops shall be designed to be adjustable and lockable by means of locknut or other device, without
actuator disassembling.
• Handwheels shall not be used as limit stops.

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 SLOVNAFT a.s. MGS-S-REF-I-5.6.1
R&M Division

2.13 Other
1. The solenoid valves shall be mounted on the valve as possible close to the actuator air connections.
2. Valves DN 80 and larger in size shall be equipped with lifting eyes or hooks.
3. For armoured cables double sealing cable glands shall be used.
4. The instruments shall have integral over-voltage protection.
5. The instrument case shall be connected to the equipotential earth system of the plant.
6. For all pneumatic instruments a dedicated filter-reducer unit is required complete with pressure gauge with
diameter Ø 60 mm and block valve.

2.14 Control valve diagnostics

2.14.1 Requirements for on-line diagnostics

At normal process conditions the positioner of control valve shall have next diagnostic capabilities.
Level 1, 2 minimum diagnostic requirements:
• Measuring of valve friction, statistics and alert with adjustable limit (in case of sliding stem valves);
• Measuring of valve torque statistics and alert with adjustable limit (in case of rotary valves);
• Measuring of bench-set, statistics and alert with adjustable limit;
• Travel Accumulator: contains the total change in travel, in percent of ranged travel. The accumulator only
increments when travel exceeds the deadband. Then the greatest amount of change in one direction from
the original reference point (after the deadband has been exceeded) will be added to the Travel
Accumulator, alert with adjustable limits;
• Cycle Counter (Changes of direction): displays the number of times the valve travel has cycled. Only
changes in direction of the travel after the travel has exceeded the deadband are counted as a cycle. Once
a new cycle has occurred, a new deadband around the last travel is set, alert with adjustable limits;
• plus requirements of Level 3,4
Level 3, 4 minimum diagnostic requirements:
• Measuring of I/P converter input signal (drive signal) and alert with adjustable limit;
• Measuring of input signal or setpoint (if not digital, e.g. 4-20mA);
• Measuring of actuator signal pressures (the input pressure to the actuator);
• Measuring of valve position (by travel sensor);
• Calculating of travel deviation: the difference between setpoint and actual travel (valve position) and alert
with adjustable limit;
• Measuring of supply pressure and alert with adjustable limit;
• Measuring of environmental temperature and alert with adjustable limit;
• Measuring of actuator differential pressure: the pressure differential across the piston(s) on double acting
cylinders;
• Assembly error alert;
• Calibration/configuration error alert;
• Electronics failure (memory, processor, communication) alert;
• Sensor(s) failure alert;
• Mechanical failure alert;
• Positioning error alert;

2.14.2 Requirements for off-line diagnostics

Out of normal process conditions the positioner of control valve shall have next diagnostic methods:
• Dynamic Scan: shall show the integrity of the valve body and actuator assemblies. Parameters (Input Start
[%], Input End [%], Scan Time [sec], and Collection Interval [sec]) shall be adjustable.
• Valve Signature: Actuator pressure [bar] – Travel [mm] curve, in full stroke, both directions (open-close).
• Dynamic Error Band: Valve position [%] – Input signal [%] curve, in full stroke, both directions (open-
close).
• Drive Signal: Input signal of I/P converter [%] – Input signal [%] curve, in full stroke, both directions (open-
close).

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• Step Response: Valve position [%] – Time [sec] curve, in full stroke, both directions (open-close).
Parameters (Number of steps, End Point [%], Ramp Time [sec] and Collection Time [sec]) shall be
adjustable.
• Step Response with supply pressure: Valve position [%] – Time [sec] curve.
• Step Response with Drive Signal: Valve position [%], Input signal of I/P converter [%] – Time [sec] curve.

2.15 Nameplate
Each valve shall be provided with a durable nameplate easy to read during operation even if the equipment is
insulated.
The nameplates shall indicate the data specified by relevant standard, but at least the following:
• manufacturer name
• type and serial number of the valve
• nominal dimensions and pressure grade of the valve body
• valve seat dimensions
• flow characteristics of the closing cone
• material of the valve body and the trim
• valve lock stroke in mm
• operational direction of the valve and the characteristics of the control signal
• ID (tag) number of valve, I/P transformer, positioner
• protection mark
• temperature range
• input signal range

3 Datasheet to be provided for MMS (maintenance management system):

See app.

4 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

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 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.6.1
1.00.02 - - Project No:
Designer Specifications for instrumentation items 1.00.01 - - Page: 11/13
1.00.00 30.11.2011 S. Skalszky Rev.: 1.00.00
Control Valves Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change FV-039 New Rev.:
2 Service 101 bottom, steam flow control
GENERAL 3 Line No. 80-MS-3507
4 Area Classification P & I D No. Zone 1 IIC T4 P8501-ED-R003
5 Stream No. Calculation acc. to ISA S75.01-1985
6 Process Fluid State Steam Vapor
Units Max. Norm. Min.
7 Flow Rate kg/h 2 000 1 000 300
8 Inlet Pressure @ flow bara 10,0 11,0 12,5
9 Pressure Drop @flow bar 6,0 7,5 9,0
10 Inlet Temperature °C 250 220 195
11 Operating Density kg/m3 5,59
PROCESS 12 Viscosity cP 0,0169
CONDITIONS 13 Max. Shut Off Dp bar 14,0
14 Max. Inlet Pressure barg 13,0
15 Compressibility Factor Cp/Cv - 0,9427 1,299
16 Mol Weight Specific gravity - 18
17 Inlet Vapor Pressure Critacal Pressure bar-a 220,9
18 Superheat Solids %
19 Flashing %
20 Nominal Line Size, Rating DN80 PN40
21 Pipe Material Pipe class Carbon steel BQE33
PIPE LINE 22 Corrosion allowance 1,5 mm
23 Design pressure, tempperature °C 350 bar-g 16
24 Calculated Flow Coeff. Cv Max/Norm/Min Cv * * *
CALCULATED
RESULTS
25 Rated Cv Cv *
26 Sound Pressure Level dBA <85 <85 <85
27 Manufacturer Model * *
28 End Connection & Rating DN * Flanged PN 40 EN 1092-1 B1
29 Body: /Type /Material /Size Globe ASTM 216 Gr. WCC *
30 Port size Port number * Single seat
31 Bonet type Packing material Standard Graphite
BODY and TRIM 32 Flow characteristics Guiding Equal Percentage *
33 Materials: Seat/Plug /Cage 316SST Stellited 316SST Stellited *
34 Stem material 410 SST
35 Flow Direction Lubricator * No
36 Required seat tightness CLASS IV / ANSI FCI 70-2
37 Manufacturer/Model Size * *
ACTUATOR 38 ActuatorType Bench range Spring. Diaphragm min 0.8 bar
39 Fail position Handweel Close No
40 Manufacturer/Model Tag name Electro-pneumatic FY-1339
41 Input Signal Output Signal 4-20 mA *
POSITIONER 42 Air supply pressure Enclosure * EEx ia IIC T4
43 Gauges Communication Supply & Output HART
44 Conduit Connection with Cable gland **
45 Physical Layer Type
46 Voltage expected Current draw
FUNDATION
FIELBUS H1 ***
47 Function Blocks Other Blocks
48 Diagnostic Information
49 Other requirement
50 Manufacturer/Model Size - -
51 Input Signal Output Signal - -
TRANSDUCER 52 Air supply pressure Enclosure - -
53 Gauges Communication - -
54 Conduit Connection -
55 Manufacturer/Model Size * *
REDUKTOR
AIR SET
56 Regulator / Filter /Gages Yes Yes No -
57 Air supply pressure Max 3.5 bar-g .
58 Manufacturer/Model Size - -
59 Body material Type - -
SOLENOID
VALVE
60 Coil voltage Enclosure - -
61 Control action -
62 Conduit Connection -
63 Manufacturer/Model Form - -
SWITCHES 64 Contact rating Enclosure - -
65 Conduit Connection -
66 SST Piping Counter flange Yes No
OPTIONS
67 Noise Reducer Heating jacket No No
Notes:
To be filled by Vendor
Double compression type cable gland
1 The calculation sheets are to include the actuator sizing and sound calculation.
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.6.1
1.00.02 - - Project No:
Designer Specifications for instrumentation items 1.00.01 - - Page: 12/13
1.00.00 30.11.2011 S. Skalszky Rev.: 1.00.00
Regulators Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change PCV 004A New Rev.:
2 Service V7 Tank Blanketing Regulator
GENERAL 3 Line No. 50-UN7301-BPE21-V
4 Area Classification P & I D No. Zone 1 IIC T3 P2005-ED-R108/8
5 Stream No.
6 Process Fluid State Nitrogen Gas
7 Units Max. Flow Norm. Flow Min. Flow
Flow Rate Nm3/h 2,0 0,60
8 Inlet Pressure bar-g 6,0
9 Inlet Pressure Drop bar 5,8
10 Inlet Temperature °C Ambient
11 Operating Density kg/m3
PROCESS 12 Viscosity cP 0,0188
CONDITIONS 13 Inlet Compressibility Factor - 1,00
14 Inlet Specific Heats Ratio - 1,4
16 Max. Inlet Pressure bar 6,0
17 Mol Weight Specific gravity 28,02 0,97
18 Inlet Vapor Pressure Critacal Pressure bar-a 34
19 Superheat Solids %
20 Flashing %
21 Outlet Pressure Range barg 0,1-0,4
22 Nominal Line Size, Rating DN 50, PN 25
PIPE LINE 23 Pipe Material Pipe class St.37.0 BPE21
24 Corrosion Allowance 1,5 mm
25 - Max/Norm/Min Cv *
CALCULATED
RESULTS
26 Capacity l/min *
27 Sound Pressure Level dBA *
28 Manufacturer Model * *
29 Body size By Manufacturer
30 End Connection Size By Manufacturer
BODY 31 Body Material Carbon steel
32 Body Rating *
33 Pressure max. 10 bar
34
35 Material SST
36 Port/Orifice Size By Manufacturer
TRIM 37 Seat Material By Manufacturer
38 Self Cont. By Manufacturer
39
40 Type of Actuator Direkt opereted
41 Diapragm Case Material Carbon steel
42 Diaphragm Material SST
43 Disk Material PTFE
ACTUATOR 44 Max Inlet Pressure
45 Spring case material Carbon steel
46 Spring Set Range *
47 Set Pressure 0,2 bar
48 Spring Dwg No./Colour By Manufacturer
49 Type
50 Spring Set Range
PILOT 51 Supply to Pilot
52 Filter
53 Tubing & Fittings
54 Line Strainer
55 Spring Case Tapped Vent By Manufacturer
56 Internal Relief
57 Overpressure protection By Manufacturer
ACCESSORIES
OPTIONS
58 Required Seat Tightness By Manufacturer
59
60
61
62
Notes:
*., To be defined by Vendor

Required documentation: 1,2,3,4,7,8,11

APCV033A APCV033B

ATM.
V7
 MOL Group, R&M Division 1.00.03 - - Doc. No: MGS-S-REF-I-5.6.1
1.00.02 - - Project No:
Designer Specifications for instrumentation items 1.00.01 - - Page: 13/13
1.00.00 30.11.2011 S. Skalszky Rev.: 1.00.00
Control Valves FFB Rev Date Designer Date: 30.11.2011
1 Tag Number New/Change FV-1002 New Rev.:
2 Service Heavy Feed from P-101-AB
GENERAL 3 Line No. 8"-PG-10104-D24-ST
4 Area Classification P & I D No. Zone 1 IIC T3 P01
5 Stream No. Calculation acc. ISA S75.01-1985
6 Process Fluid State Gasoil Liquid
Units Max. Norm. Min.
7 Flow Rate kg/h 160 742 133 952 13 000
8 Inlet Pressure @ flow @ flow barg 8,4 9,3 10,5
9 Pressure Drop @flow @flow barg 6,9 6,9 6,9
10 Inlet Temperature °C 35 35 35
3
11 Operating Density kg/m 859 871 @15°C
PROCESS 12 Viscosity cP 6,4
CONDITIONS 13 Max. Shut Off Dp bar 18,2
14 Max. Inlet Pressure barg 18,1
15 Compressibility Factor Cp/Cv -
16 Mol Weight Specific gravity - 272 0,872
17 Inlet Vapor Pressure Critacal Pressure barg -0,9 15,1
18 Superheat Solids %
19 Flashing %
20 Nominal Line Size, Rating 8" ANSI Class 300 RF
PIPE LINE 21 Pipe Material Pipe class Carbon steel D24
22 Design pressure, tempperature 18,2 barg 100 °C
23 Calculated Flow Coeff. Cv Spec/Max/Norm/Min Cv 167,38 110,27 8,738
CALCULATED
RESULTS 24 Required Cv Rated Cv Cv 184 *
25 Sound Pressure Level max. dBA <85 <85 <85
26 Manufacturer Model * *
27 End Connection & Rating 6" Flanged ANSI Class 300, RF
28 Body: /Type /Material /Size Globe ASTM A216 Gr. WCB *
29 Port size Port number Standard Enviromental/ Teflon
30 Bonet type Packing material * Single Seat
BODY and TRIM 31 Flow characteristics Guiding Equal Percentage *
32 Materials: Seat/Plug /Cage 316 Stellited 316 Stellited *
33 Stem material 410 SST
34 Flow Direction Lubricator Flow to Open No
35 Required seat tightness CLASS IV / ANSI FCI 70-2
36 Manufacturer/Model Size * *
ACTUATOR 37 ActuatorType Bench range Diaphragm spring min 0.8 bar
38 Fail position Handweel Close No
39 Manufacturer/Model Communication * Fundation Fieldbus
40 Input Signal Output Signal Fundation Fieldbus *
POSITIONER
41 Air supply pressure Gauges * Supply & Output
42 Enclosure Conduit Connection EEx ia IIC T5 with Cable gland **
43 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
44 Min. operatingvoltage Quies.current draw max. 9V dc max. 15 mA
45 Function Blocks Other Blocks AO, PID -
FOUNDATION
FIELBUS H1 ***
46 Diagnostic Information Polarity Sensitive Yes No
47 Other requirement backup LAS function -
48 IS par.for fileld div.max. internal Ci, Li *
49 Max. input Voltage Ui / Current Ii Max input power Pi * *
50 Manufacturer Model - -
51 Input Signal Output Signal - -
TRANSDUCER 52 Air supply pressure Enclosure - -
53 Gauges Communication - -
54 Conduit Connection -
55 Manufacturer Model * *
REDUKTOR
AIR SET
56 Regulator / Filter /Gages Yes Yes No -
57 Air supply pressure Max 3.5 bar-g .
58 Manufacturer Model - -
59 Body material Type - -
SOLENOID
VALVE
60 Coil voltage Enclosure - -
61 Control action -
62 Conduit Connection -
63 Manufacturer/Model Form - -
SWITCHES 64 Contact rating Enclosure - -
65 Conduit Connection -
66 SST Piping Insect filter Yes No
OPTIONS
67 Noise Reducer Heating jacket No No
Notes:
*: To be defined by Vendor.
** Double compression type cable gland.
***: The DEV, DD and CF service revision level must also be give.
1: The calculation sheets are to include the actuator sizing and sound calculation.
2: Required documentation: 1,2,3,4,5,7,11,13,15
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification for Instrumentation Items

6. Valves
2. On-Off Valves

MGS-S-REF-I-5.6.2

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 Specification for Instrumentation Items Date: 31.01.2014
6 Valves Page/Pages: 2/11
2 On-Off valves

Release list

Rev. Date Description Edited Verified Approved

0.00.00 15.12.2005 Basic release
0.00.01 28.03.2006 Issued for comments
1.00.00 30.11.2011 General issue S.Skalszky L.Pallagi
1.00.01 31.01.2014 General review Zuzana Stanová Pavol Jakubec

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
R&M Division

Contents

1 General: ................................................................................................................................................................. 5
1.1 Deviations: .................................................................................................................................................... 5
1.2 Protection: ..................................................................................................................................................... 5
1.3 Applicable codes & standards: ..................................................................................................................... 5
2 Technical requirements ......................................................................................................................................... 5
2.1 Sizing and design ......................................................................................................................................... 5
2.2 Valve body design: ....................................................................................................................................... 5
2.3 Bonnet........................................................................................................................................................... 6
2.4 Internal materials .......................................................................................................................................... 6
2.5 Tightness requirements ................................................................................................................................ 6
2.6 Effect of flow direction ................................................................................................................................... 6
2.7 Actuators ....................................................................................................................................................... 6
2.8 Position indication (as required) ................................................................................................................... 8
2.9 Hand-wheel and bypass ............................................................................................................................... 8
2.10 Other ............................................................................................................................................................. 8
2.11 Nameplate..................................................................................................................................................... 8
3 Datasheet to be provided for MMS (maintenance management system): ............................................................ 9
4 Appendix ................................................................................................................................................................ 9

On-off valves specification sheet ................................................................................................................................ 10

Motor operated on-off valves FFB specification sheet ............................................................................................... 11

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 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
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REQUIRED DOCUMENTATIONS:

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol.
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Manufacturer’s declaration about Dynamic Control Performance requirements.
17. SIL Certification according to EN 61508 or certification of proven in use / prior use requirements according
to EN 61508 / EN 61511.
18. Safety Manual for safety Equipments.

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 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
R&M Division

TECHNICAL REQUIREMENTS FOR ON/OFF AND INTERLOCK VALVES

1 General:
This specification describes the basic design requirements regarding on/off and interlock valves installed in
production facilities.

1.1 Deviations:
The Project Specification may include differences from or modifications to these requirements.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.
The specified materials shall be in accordance with the pipe class specification system, standards and
requirements of the project.

1.2 Protection:
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Site conditions and required protection classes”.

1.3 Applicable codes & standards:

According to chapter MGS-M-REF-I-4 & MGS-S-REF-I-4.

2 Technical requirements
1. The instruments installed shall conform to all mechanical and process requirements.
2. The instrument shall conform to the requirements and specifications set by hazardous area classification
for the place of installation.

2.1 Sizing and design

1. On/Off valves shall be sized according to vendor’s instructions during detail engineering, and reasonably in
compliance with the requirements of the relevant standard. On the basis of case-by-case agreement, valve
sizing procedures different from the above may also be used.
2. Generally pneumatically operated on/off valves shall be used with the addition of solenoid valves (230
Vac/24 Vdc control voltage, and EEx d case) and/or safety positioner (Exi or Exd), and proximity type limit
switches of intrinsically safe (EEx i) design. Integral type limit switch in the built-in positioner shall be used
only with written permission from client
3. The cross-sectional flow area of On/Off valves shall be equal to the size of the process line unless required
otherwise for process reasons. The internal design shall be such that in fully open position the pressure
drop across the valve will not exceed the pressure loss allowed by the process.
4. The noise level of On/Off valves shall be calculated for the operating condition according to the
manufacturer’s specified standard instructions (ISA S75.17 or IEC 60534-8-3/IEC 60534-8-4). In order to
avoid damage to hearing noise shall not exceed the value of 85dB (C), as measured at 1m distance from
the source. If the noise level of certain equipment is higher, the suitable technical solution for the noise
reduction shall be found.

2.2 Valve body design:

• Single seat valve
• Gate valve
• Ball valve
• Cone bolt
• Triple eccentric butterfly valve
1. Construction materials shall be specified per ASTM or DIN standard according to mechanical design.
2. Valves in sour service shall comply with NACE standard MR-0175 requirements.
3. The body of on/off valves shall be made from cast steel at least, or from materials meeting the
requirements of the piping class.

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 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
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4. Following connection type shall be used;

• flanged (generally),
• wafer
• welded (only for written request)
Slip flanges shall be used only with written permission from client
5. The flanges shall comply with the requirements of the piping class, their construction according to
requirements of standards EN 1092 or B16.5/ASME B16.47, depending from the mechanical design
documentation.
6. The fluid flow direction shall be permanently marked on the valve body.

2.3 Bonnet
1. The packing-gland of the on/off valves shall be of bolted design. Selection of packing material shall be
based on process medium and design condition.
2. The valve manufacturer is responsible for verifying that the packing is suitable for the process fluid,
operating conditions and contaminant materials listed.
3. In the case of fluid temperature above max. or below min. from suggested temperature by manufacturer
for the standard bonnet, extended bonnet shall be used. The bonnet - even in the case of cooling fin or
extension neck design - shall be made from the same material as the valve body, with a one-piece design
or bolted design and confined seals. The application of threaded bonnets is not allowed.
4. In the case of process fluids polluting the environment or slightly harmful to ones health, the packing gland
shall be of “environment friendly design”, whereby the wear of the packing during operation is automatically
compensated in this way helps to reduce fugitive emissions.
5. In case vacuum or toxic medium shall be used airtight packing gland (bellows seal) in combination with
other type of packing gland design.

2.4 Internal materials

The selection of construction materials, the fluids corrosive and erosive effect shall be considered. The seats and
plug of the valves shall be made from materials of better quality than the piping materials, but at least from
stainless steel, if process requirement is not against it. In special case the corrosion allowance shall be considered.

2.5 Tightness requirements

1. Tightness requirement shall be specified, tested and certified in accordance FCI 70-2 standard
requirements.
2. Block valves shall be of tight-closing design. Required tightness according to FCI 70-2: Class V for liquids
and Class VI for gases according to relevant standard. The tight shut-off (TSO) complying with the referred
standard shall be re-tested at the maximum shutoff differential pressure.
3. Class V shut-off shall be tested at full specified shutoff dp. If no shutoff dp is specified, then the leakage
shall be tested with the maximum specified inlet pressure and 0 pressure at the valve outlet.
4. The shut-off of the interlock valves shall be in accordance with EN 161 standard requirements in case of
fuel system for heaters.

2.6 Effect of flow direction

In the case of on/off valves the effect of flow shall move the plug towards the specified fail position if possible by
valve body type.

2.7 Actuators
1. Types of actuators
• Remote operation (pneumatic, electrical, electro-hydraulic)
• Direct actuated solenoid actuator is acceptable in case of max. 1” process line, with written permission
from client/designer.
2. For selection of the valve actuator shall take into consideration the process induced force at the specified
shutoff conditions and the force required of the packing friction. The valve manufacturer is responsible for
verifying that the actuator is suitable for the operation of the valve at the specified process conditions.
3. The on-off/interlock valves shall be designed to meet the specified closing time requirement.

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 SLOVNAFT a.s. MGS-S-REF-I-5.6.2
R&M Division

2.7.1 Diaphragm actuators:

1. The diaphragm houses shall be steel structures resistant to atmospheres encountered in the oil industry.
The diaphragm shall be made of formed material resistant to ageing and pressure loads, and shall tolerate
changes in ambient temperature within the range set forth in the project specifications.
2. The effective surface area of the diaphragm shall be constant in the full stroking range.

2.7.2 Piston actuators

1. These actuators shall be equipped with integral force-balancing positioner. The pistons and cylinders shall
be made from a material suitable for the pressure of the operating medium.
2. The auxiliary unit (power pack) necessary for this type of actuators shall be provided together with the
actuator.
3. In the case of pneumatic actuators proper fail action of the valve shall be ensured, as required by the
process function, in the case of air supply or actuator failure This requirement shall be met by spring return
or a pneumatic accumulator.

2.7.3 Electric motor operated valves

1. Asynchronous-motor driven gears with integral reversing switches shall be used as electrical actuator.
2. The drive unit shall have start/stop, local/remote switches, open/closed position detectors, and remote
start/stop facility.
3. Mechanical overloads shall be avoided with the use of limit switches installed in the control circuit of the
drive unit, and with torque-switches.
4. The use of hardwired control, status display is recommended. In the case of control by shutdown system, it
shall be equipped with direct hardwired ESD input.
5. Unless otherwise agreed, the motor shall be supplied with three-phase power (400 V AC).
6. The enclosures for the motor, switches and detectors shall be explosion-proof (EEx d) in hazardous areas.
7. The motor-driven valves shall have hand-wheels engaged with clutches for operation in the case of power
failure, and means for padlocking to avoid unauthorised operation.
8. The opening or closing pulses shall be of minimum 100 ms duration. To receive the opening or closing
pulses 24V DC relays shall be installed, the contacts of which act in the control circuits.
9. The driving unit shall have space heating installed.

2.7.4 Electro-hydraulic actuators

1. In the case of electrohydraulic actuators proper fail action of the valve shall be ensured, as required by the
process function, in the case of power supply failure or the breakdown of the actuator. This requirement
shall be met by hydraulic accumulator, electrical battery or any other special solution tion.
2. Automatic actuators shall be equipped with manual operating means (e.g. integral hand pump or provisions
for connection to external hand pumps).
3. For electro-hydraulic actuators the motor shall be operated from 3-phase (400 V AC) power supply unless
agreed otherwise.
4. In hazardous area motor, switches and sensor enclosures shall be of flame-proof (EEx d) design.

2.7.5 Operation with solenoid valves

1. The solenoid valves shall be suitable for operation at the specified ambient temperatures.
2. The solenoid valves shall be mounted on the valve as possible, close to the actuator air connections.
3. If the datasheet hydrocarbon is specified as the flowing medium, then the wetted parts of the valve shall
meet the requirements of application in hydrocarbon service.
4. In the case of installation in process systems, the valve body shall be of flanged connection design. In other
cases it shall be screwed.
5. The operational voltage for the solenoid valves - unless otherwise specified in the datasheet - shall be 24V
DC / 230 V AC.

2.7.6 Operation with safety positioned

1. Safety Positioner shall be used as safety part of shut-off valves in order to achieve the required Diagnostic
Coverage (DC) and/or Safe Failure Fraction (SFF) that is necessary for target SIL.
2. As far as possible the Safety positioner should have capability to communicate the logic solver of SIS
and/or Basic Process Control System (BPCS) via HART, and/or hardwired connection.

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3. A written approval of Client, Designer, BPCS and/or SIS vendor are required the selection of safety
positioner and communication type based on selected BPCS and SIS system in order to ensure the highest
integrity of Safety Positioner and visualization on integrated control system.
4. As far as possible the Safety positioner and Logic solver should have direct connection without any other
equipments.
5. In case of partial stroke test the Safety Positioner shall have capability to send information to the integrated
control system as follows (but not limited):
• PST in progress
• PST is success or unsuccessful
• Other signals
• Use of ‘fail-safe’ principles so that the actuator takes up the tripped state on loss of signal or
power (electricity, air etc.). e.g. held open, spring return actuator.
• Provision of uninterruptable or reservoir supplies of sufficient capacity for essential power.
• Failure detection and performance monitoring (end of travel switches, time to operate, brake
performance, shaft speed, torque etc.) during operation.
• Feedback to alarm when a final element fails to go to its commanded state.
• Alarm if field devices change state without a command from the SIS.
• Overrating of equipment.
• Advanced diagnostic alert
6. For all diagnostic requirements on PST related valves see: MGS-M-REF-I-6.5 & MGS-S-REF-I-6.5.

2.8 Position indication (as required)

1. The valves shall be equipped with a visual indicator (flag) indicating the position of the plug.
2. For limit position indication, –in fully open and/or fully closed valve –position, normally closed contacts shall
be used.
3. The limit switches shall be actuated directly from the stem/shaft and shall be adjustable..
4. The limit switches shall be suitably insensitive both mechanically and functionally to occurring vibrations, be
of weather-proof design (IP 65) and meet the requirements imposed by hazardous area classification.
Proximity type switches shall be used in intrinsically safe (EEx i) design.
5. Integral type limit switch in the built-in positioner shall be used only with written permission from client.

2.9 Hand-wheel and bypass

In the case of interlock (trip & shutdown) valves no hand-wheel nor bypass may be used – except some special
case with the client written permission.

2.10 Other
1. DN 80 and larger valves shall be fitted with lifting eyes or hooks.
2. For armoured cables double sealing cable glands shall be used, gripping both the jacket of the cable and
the insulation inside the armour, and ensuring connection of the cable armour to the instrument case.
3. The instruments shall have integral over-voltage protection.
4. The instrument case shall be connected to the equipotential earth system of the plant.

2.11 Nameplate
Each valve shall be provided with a durable nameplate easy to read during operation even if the equipment is
insulated.
• The nameplates shall contain the data specified by relevant standard, but at least the following:
• Manufacturer’s name
• model and serial number of valve
• nominal size and pressure rating of valve body
• valve seat dimensions
• flow characteristics of plug
• material of valve body and trim

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• valve closing stroke in mm

• valve action (direct or reverse) and control signal characteristics
• ID (tag) number of valve
• symbol of protection class
• temperature range
• input signal range

3 Datasheet to be provided for MMS (maintenance management system):

See app.

4 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

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 SLOVNAFT a.s., R&M Division 3 - - szám: MGS-S-REF-I
Technical specifications for instrumentation 2 - -
Specification sheets for instrumentation items 1 - Page: 11/11
Designer Valves 0 15.01.2007 Z. Stanová Rev.: 1.00.00
On-Off Valves Rev Date Design. Date: 30.11.2011
3
1 Tag Number New/Change LV 004 New Rev.:
2 Service Heavy Feed to V3
GENERAL 3 Line No. 50-P7018-BPE31-V
4 Area Class. P & I D No. Zone 1 IIC T3 P2005-ED-R104/4
5 Stream No. Calculation - .
6 Process Fluid Fluid Phase Light Naphta Liquid
its Max. Norm. Min.
7 Flow Rate kg/h 1 000 - -
8 Inlet Pressure @ flow MPa-a 1,88 - .
9 Pressure Drop @ flow Mpa 0,8 - -
10 Inlet Temperat. °C - 33 .
3
11 Oper. Density kg/m - 663 .
PROCESS 12 Viscosity cP . 0,283 .
CONDITIONS 13 Max. Shut Off Dp Mpa 2,1
14 Max. Inlet Pressure MPag 2
15 Compr. Fact. Cp/Cv - - -
16 Mol Weight Specific gravity - 81,9 -
17 Inlet Vap. Pressure Critical Pressure MPa-a 19 -
18 Superheat Solids % . .
19 Flushing % < 0,1 (H2 flash out) .
21 Nom. Line Size, Rating DN 50 PN 40
PIPE LINE
22 Pipe Material Pipeline class St.37.0 BPE31
23 Design pressure, temp. 2,5 MPag 40 °C
24 Calculated Flow Coeff. Cv Max/Norm/Min Cv - - -
CALCULATED
RESULTS
25 Rated Cv Cv -
26 Sound Pressure Level dBA <85 <85 <85
27 Manufacturer Model - -
28 End Conn. & Rating DN Flanged PN 40 EN 1092-1 B1
29 Body, Type, Material, Size * CS *
30 Port size Port num. * 1
BODY and TRIM
31 Bonet type Packing mat Normal Enviromental
32 Flow charact. Guiding quick opening *
33 Materials,,Seat, Plug, Cage 316SST 316SST *
34 Flow Direction Lubricat. * No
35 Required seat tightness CLASS IV / ANSI B16.104
36 Manufacturer, Model Size * *
37 Type Bench range Spring-Diaphragm *
ACTUATOR
38 Fail position Handweel Close Yes
39 Stroking time
40 Manufacturer, Model Size * *
41 Input Signal Output Signal 4-20 mA *
42 Air supply pressure Enclosure * EEx ia IIC T5
43 Gages Communication Supply & Output HART
DIGITAL VALVE
CONTROLLER
44 Physical Layer Type -
45 Voltage expected Current draw - -
46 Function Blocks Other Blocks - -
47 Diagnostic Information -
48 Conduit Connection with Cable gland **
49 Manufacturer, Model Size - -
50 Input Signal Output Signal - -
TRANSDUCER 51 Air supply pressure Enclosure - -
52 Gages Communication - -
53 Conduit Connection -
54 Manufacturer, Model Size * *
REDUKTOR
AIR SET
55 Regulator, Filter, Gages Yes Yes Yes -
56 Air supply pressure Max 3.5 bar-g .
57 Manufacturer, Model Size * *
58 Body material Type SST 3/2 way solenoid
SOLENOID
VALVE
59 Coil voltage Enclosure 230 V ac EEx d IIC T4
60 Control action Universal
61 Conduit Connection with Cable glande **
62 Manufacturer, Model Form * O, C 1-1 pc. Proximity
SWITCHES
63 Contact rating Enclosure - EEx ia IIC T5
64 Conduit Connection 2 pcs. Cable gland
65 SST Piping Count flange Yes No
OPTIONS 66 Noise Reduser Heating jacket No No
Notes:
*., To be filled by Vendor ** Double compression type cable gland
1., The calculation sheets are to include the actuator sizing and sound calculation.
2., Required documentation 1,2,3,4,5,7,11,12,15:
 SLOVNAFT a.s., R&M Division 3 - - Project: MGS-S-REF-I-5.6.2
Technical specifications for instrumentation 2 - -
Specification sheets for instrumentation items 1 - Page: 11/11
Designer Valves 0 15.01.2007 Z. Stanová Rev.: 1.00.00
On-Off Valves (FFB) Rev Date Design. Date: 30.11.2011
1 Tag Number New/Change KHV 1115 New Rev.:
2 Service Heavy Feed to P-105-AB
GENERAL 3 Line No. 10"-PG-10301-D24-ST
4 Area Class. P & I D No. Zone 1 IIC T3 P4
5 Stream No. Calculation - .
6 Process Fluid Fluid Phase Gasoil Liquid
7 Units Max. Norm. Min.
8 Flow Rate m³/h - - -
9 Inlet Pressure @ flow MPa-g - 0,25 .
10 Pressure Drop @ flow MPa-g - - -
PROCESS
CONDITIONS 11 Inlet Temperat. °C - 156 .
12 Oper. Density kg/m3 - - .
13 Viscosity cP . - .
14 Max. Shut Off Dp MPa-g 1,8,
15 Max. Inlet Pressure Mpa-g 1,75
16 Nom. Line Size, Rating 10" ANSI Class 300#
PIPE LINE
17 Pipe Material Pipeline class - D24
18 Design pressure, temp. 1,85 MPag 250 °C
19 Calculated Flow Coeff. Cv Max/Norm/Min Cv - - -
CALCULATED
RESULTS
20 Rated Cv Cv Line size
21 Sound Pressure Level dBA <85 <85 <85
22 Manufacturer Model - -
23 End Conn. & Rating 10" Wafer ANSI Class 300# RF
24 Body, Type, Material, Size Butterfly (triple ecc.) A216 Gr. WCB *
25 Port size Port num. * Full bore
BODY and TRIM
26 Bonet type Packing mat Extended Enviromental / Graphite
27 Flow charact. Guiding On / Off *
28 Materials,,Seat, Plug, Cage AISI 316 AISI 316 *
29 Flow Direction Lubricat. Flow to open No
30 Required seat tightness CLASS VI / ANSI B16.104
31 Manufacturer, Model Size * *
32 Type Motor operated valve
33 Fail position Handweel Remain in position No
34 Coil Voltage P. Consuption 380V/50Hz *
35 Rotation Closing time 90 degres See note 4
36 Torque Break/Run Ex. Protection */* EE x d IIC T3
ACTUATOR 37 Overload Protection By motor termostate
38 Over Torque Protection Provided in motor control circuit
39 Conduit Connection 2 x 1" NPT F / 1x 1 1/2" NPT F with Cable glands **
40 Housing Material Protection Class Cast alloy min IP65
41 Coating Weight According to vendor *
42 Anti condensator heater Yes 10 W
43
44 Local control unit Start-Stop PB, Remote-Local switch
45 Local position indication Opened-Closed position
CONTROL 46 Inputs ESD, START, STOP Voltage free contacts from PLC
FUNCTION 47 Outputs Combined failure Voltage free contact to PLC
48 Ex. Protection EE x d IIC T3
49
50 Opened position limit switch 3 db / 3 pcs KZSH 1115A, KZSH 1115B, KZSH 1115C
51 Closed position limit switch 1 db / 1 pcs KZSL 1115
LIMIT
SWITCHES
52 Type of switches Ex. Protection Proximity type EE x ia IIC T3
53 Conduit Connection Junct.box with 5 pcs. Cable gland**
54
55 Supply Communnication Bus Powered Foundation fieldbus H1
56 Physical Layer Type 111 Standard signaling, Bus powered, Intrinsically safe
57 Min.oper.voltage Quies.cur.draw max. 9V dc max. 15 mA
BUS 58 Function Blocks Other Blocks AI1 -
CONTROLLER
59 Diagnostic Inform Polarity Sensitive Yes No
AND-OR
POSITION 60 Other requirement backup LAS function
TRANSMITTER 61 IS Parameters for field device, max. internal Ci, Li *
62 Max. input Voltage Ui / Current Ii Max. Input Power Pi * *
63 Kábelbevezetés / Conduit Conn. Ex. Protection with Cable gland** EE x ia IIC T3
64
65 SST Piping Count flange No -
OPTIONS
66 Noise Reduser Heating jacket No No
67
Notes:
*.,To be filled by Vendor Note 4: Closing time to be long enough to awoid liquid hammering
** Double compression type cable gland
***: The DEV, DD and CF service revision level must also be give.
1., The calculation sheets are to include the actuator sizing and sound calculation.
2: Required documentation: 1,2,3,4,5,7,11,13,15
SLOVNAFT a.s.
R&M Division

MOL Group

TECHNICAL SPECIFICATION
INSTRUMENTATION

5. Specification sheets for instrumentation items

7. Analyzers

MGS-S-REF-I-5.7

Rev 1.00.01

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group.
 SLOVNAFT a.s. MGS-S-REF-I-5.7
R&M Division
TECHNICAL SPECIFICATION - INSTRUMENTATION Rev.: 1.00.01
5 TECHNICAL SPECIFICATIONS - INSTRUMENTATION Date: 31.01.2014
7 Analysers Page/Pages: 2/14

Release list

Rev. Date Description Edited Verified Approved

0.00.00 20.01.2006 Basic release
0.00.01 28.03.2006 Issued for comments
0.00.02 12.12.2008 Issued for comments
1.00.00 30.11.2011 General issue S. Skalszky L. Pallagi
1.00.01 31.01.2014 General review Z. Stanová R. Kopálek Head of
Technology

This document is property of MOL Group. The use is only allowed with the written permission of MOL Group
 SLOVNAFT a.s. MGS-S-REF-I-5.7
R&M Division

Contents
1 General: ................................................................................................................................................................. 5
1.1 Deviations: .................................................................................................................................................... 5
1.2 Protection: ..................................................................................................................................................... 5
1.3 Applicable codes & standards: ..................................................................................................................... 5
2 Analyzer system design ........................................................................................................................................ 5
2.1 General: ........................................................................................................................................................ 5
2.2 Application requirements .............................................................................................................................. 5
2.3 Installation of analyzers ................................................................................................................................ 6
2.4 Sample conditioning ..................................................................................................................................... 6
2.4.1 Functions of a sample system: ................................................................................................................. 7
2.4.2 Design factors: .......................................................................................................................................... 7
2.5 Analyzer House .......................................................................................................................................... 10
3 Maintenance requirements .................................................................................................................................. 13
4 Datasheet to be provided for MMS (maintenance management system): .......................................................... 13
5 Appendix .............................................................................................................................................................. 14

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REQUIRED DOCUMENTATIONS:

1. Manufacturer’s certificate (with the model & serial number and the main data of instrument) (or according to
ISO 9001:2000).
2. Manual with contents according to IEC 278. Manual to contain also the following:
• Cross sectional drawings with list of parts.
• List of special tools.
• Electrical scheme, wiring diagrams.
3. The bid documentation shall include the following drawings:
• Outline drawing with overall dimensions, type of connections, materials, rating.
4. Certificate of hydrostatic pressure test. (PED)
5. Certificates of explosion-proof elements - ATEX (100A Directive) issued by Notified Body.
6. Type test certificate of National Office of Measurement.
7. Calculation data sheet.
8. Calibration data sheet.
9. (Calibration data sheet by National Office of Measurement, if needed).
10. Vibration-proof certification according to IEC751.4.4.4.2.
11. Certificate of the construction materials for wetted parts. (EN 10204 3. 1)
12. Electronic Device Descriptors shall be supplied by vendor published on HART org webpage. Confirmation
of Communication release FIMS using HART protocol
13. Certification of conformance with the requirements of Foundation Fieldbus standard. (IEC61158-2)
14. Certificate of compliance with fire-protection requirements.
15. CE declaration of conformity.
16. Certification according to IEC61508 (MTBF – Main Time Between Failure, DC – Diagnostic Coverage,
etc.).

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ANALYZERS

1 General:
This specification describes the basic design requirements regarding the installation of on-line analyzers and
analyzing systems with electrical, pneumatic or other power supply installed in production facilities.

1.1 Deviations:
The Project Specification may differ from these specifications.
Any deviations from the contents of this specification and project specifications shall be allowed only with the
written authorization of MOL Group.

1.2 Protection:
The explosion-proof and IP protection of the instrument shall meet the requirements of Section MGS-M-REF-I-4 &
MGS-S-REF-I-4: “Site conditions and required protection classes”.

1.3 Applicable codes & standards:

According to chapter MGS-M-REF-I-4 & MGS-S-REF-I-4

2 Analyzer system design

2.1 General:
1. The solution of an analysis task usually means the performance of the following sub-functions tasks as well
as the existence and operation of the elements and valves allowing proper functioning, maintenance and
checking/calibration:
• sampling
• sample preparation and conditioning
• connection of return line from fast sample loop, disposal of analyzed sample
• test point switch
• sample analysis
• transformation of the signals received as a result of the analysis
• transmittal of the signals
• central, remote receipt and processing of the signals
• safe disposal or destruction of the analyzed sample
• power and utility supply for the analyzer (for instance carrier gas, cleaning and flushing medium, cooling
medium, heating medium, pneumatic and electric power supply, etc.), provision of reference samples
(standards) and their analysis
• provision of protective equipment (for instance enclosures and their heating and lighting equipment)

2.2 Application requirements

How the analyzer system will be used (for example, quality control, process control, and safety/environmental
regulations) and what the analysis results are to be used for must be asked initially before selecting an analyzer.
Primary factors to be considered are as follows:
1. Application method: First a determination must be made regarding whether a physical or chemical
property or a composition analyzer is required. Then a determination must be made on the specific
application method. A method is typically selected for a particular measurement or analysis according to
laboratory and/or process experience.
2. Repeatability and accuracy: The design of all analyzer applications should take requirements for
accuracy and precision into consideration. Emphasis is usually placed on analyzer stability and
repeatability of the measurement. The capability of the analyzer must match the requirements of the
analysis required.
3. On-stream factor: A goal of 95% or greater on-stream factor of on-line availability is generally desired.
Analyzers exhibiting less than 95% are generally not considered reliable by operations and closed-loop

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control applications. On-stream factor is the total time the analyzer is operating reliably, relative to process
operations. Reliability of the analyzer system, commitment of maintenance personnel, and ease of
maintenance contribute to the on-stream factor.
4. Overall system response time: This is the total time required to take a representative sample, condition it,
analyze the sample, and output the results.
5. Sample conditioning: Most analyzer systems require reliable samples to be conditioned so the sample
will be compatible with the analyzer. The location of the sample tap in the process is important in obtaining
a representative sample. A sample conditioning system must deliver a process sample in a timely manner,
in which the components to be measured represent the actual process stream composition.
6. Installation: Consideration should be given to area electrical classification, protection from the
environment, ambient temperature variation effects, ease of availability for maintenance, and sample
disposal requirements.
7. Maintenance: Process analyzers should be designed for effective maintenance. The type of maintenance,
frequency, and personnel requirements should be considered.
8. Operating costs: These should include costs of utilities and consumables plus labor and materials for
maintenance.
9. Safety/environmental requirements: If an analyzer is required for monitoring pollution and/or the
occupational environment, the analyzer should comply with the appropriate regulations applicable to such
measurements.

2.3 Installation of analyzers

1. Analyzers shall be installed so that the safe operational conditions suitable from the point of view of the
analysis, as needed for the provision of accurate measurement data, be met in full.
2. The installation of the analyzers shall take into consideration the electrical equipment being operated in
hazardous environment. The electrical hazards of analyzers are double-sided. On the one hand, the
environment in which the analyzers operate—process sites of facilities in the oil and gas industry—is highly
hazardous, flammable and explosive. On the other hand, the material analysed is also highly hazardous,
flammable and explosive. Therefore the danger that possible failures may become sources of further
damages is doubled.
3. When selecting the installation site, the following issues shall be considered.
• Whether under normal operating conditions, the environment of the analyzer contains hydrocarbons or
any other materials forming an explosive mixture with air, or this situation arises only in the case of
failures.
• Whether the enclosures of the analyzer containing electrical parts as well shall be opened during
normal operation or maintenance.
• Whether, under normal operating conditions or in the case of malfunctions/failures, the electrical or
analytical parts of the analyzer can produce a spark having enough energy to ignite the explosive
medium in their environment, or their surface temperature can reach 80°C, or they contain any ignition
source at all.
• The separation of the ignition source and the explosive environment must be solved with proper
enclosure or in any other way.
• Vibration-free installation must be ensured when required by the measurement principle of the analyzer
system.
4. The solution for the difficulties arising during investigations can be assisted by the specifications on the
electrical and instrumentation assembly work in hazardous environment, requirements on intrinsically safe
circuits and their installation, as well as the conditions for the establishment of pressurised protection and
pressurised purging. These requirements offer solutions set forth in international and national standards,
and their knowledge—although it cannot be part of this specification — is essential when deciding on the
installation of the analyzers and analysing systems.
5. The analyzers shall be installed so that the destruction of the samples used for the analysis, or their
disposal to a safe location can be solved. Although the samples handled by the analyzers mean a rather
small material volume compared to the material throughput of the facility, the safe disposal of “used”
samples shall be taken care of.

2.4 Sample conditioning

Sample conditioning systems are comprised of all the components necessary to extract a representative sample
and to condition the sample for measurement by the analyzer. The design of the total sample conditioning system

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must be engineered for each specific application. The sample conditioning system assembly tends to be complex
(actually small chemical processes with control systems) and is often the least reliable segment of an analyzer
system. It is important that all factors that influence an overall system and the operation of an analyzer be given
thorough consideration. Such factors as unknown process conditions, process upsets, and contaminants can lead
to poor designs.
On the basis of sampling arrangement, two analyzer types shall be differentiated: in-line analyzers having detectors
installed directly in the process (for instance flue gas oxygen analyzer with ZrO2 detector), and (on-line) systems
consisting of sampling, preconditioning units system and analyzers.

2.4.1 Functions of a sample system:

The functions performed by the sample conditioning system as the interface between the process and the process
analyzer include the following:
1. Taking and delivering a representative sample from the process. The sample point of the analyzer as well
as the sampling system shall ensure that the data received as a result of the analysis will be typical of the
process.
2. Transporting the sample from the sample tap to the analyzer and from the analyzer to the waste disposal
and/or process return point.
3. Conditioning the sample by adjusting the pressure, temperature, flow rate, filtering, and phase maintenance
of the sample as required to make the sample compatible to the process analyzer.
4. Sample-stream switching and calibration switching into the analyzer.
5. Design incorporates capability for ease of maintenance, cleaning, or (when needed) flushing the entire
system.

2.4.2 Design factors:

The complete stream composition of all the components and contaminants must be considered. Some
contaminants, such as solids or entrained liquids in a gaseous stream, may have to be removed by the sample
system. The process conditions and range of all components during normal and especially abnormal conditions
(such as startup, shutdown, rate change, and so forth) must be considered for the analyzer application and sample
system design.
Sample Point Location: The following factors should be considered in determining the optimum sample point
location:
1. Locate the sample tap in the process stream where a representative sample can be withdrawn.
2. It is important to locate the sample tap where corrective action may best be achieved in the process.
Locations downstream of large vessels or accumulators should be avoided due to an increase in lag time
that is introduced by the significant volume increase.
3. Locate the analyzer as near as practical to the sample point to minimize sample transport time. The
selection of the sample point and the design of the sampler, the length and protection of the sample lines,
and sample preparation/conditioning method shall be based on due consideration of all factors. The main
objective in the selection of the sample point shall be to specify the location in the process system where
the sample taken is representative for analysis purposes. The frequency of servicing and cleaning
requirements shall also be taken into consideration for the selection of sample points.
4. Location should be considered to offer significant differential pressure if the sample is returned to the
process. Avoid sample points and returns around process control valves. Sample and return points around
control valves present two problems: the sample bypasses the valve when it should be closed and there is
little or no sample bypass flow when the control valve is wide open.
5. Locate the sample tap for ease of cleaning or maintenance and means of access to the sample point.
6. Locate the sample point where the process reaction or mixing is stable, and avoid sample point location
where mixed phases may exist.
7. Locate the sample tap on the top or side of horizontal process lines, and horizontally in vertical process
lines to minimize poor sampling.

Sample Probes: Sample probes should be used because they provide a more representative sample due to the
higher flow rates away from process pipe walls. Note: Process lines smaller than 2 in. usually do not require a
sample probe. If a probe is required for small diameter lines, the line may be swaged up to 3 in. or larger with a
spool piece to allow a probe to be inserted. Sample probes significantly reduce wall contaminates and particulates
and act as a first stage of filtration and conditioning. Special design considerations are required when process
velocities are excessive (which may require thickwalled probes and in high temperature applications). Corrosive

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service or high temperatures may require special alloys or materials. Flanged thermo wells are often used as
sample probes by merely cutting the end off at a 45° angle. The probe is positioned 180 degrees from t he process
flow to minimize particulate matter in the extracted sample.
Sample Tap Primary Conditioning: Installation of primary conditioning systems at the sample tap typically allows
for more reliable operation of extremely difficult samples that cannot be transported easily to a remote sample
conditioning system. Pyrolysis furnace effluents, regenerator gas from FCC and reformers or other hot gases with
condensable material, particulate matter, and catalyst fines are examples requiring primary sample conditioning in
order to maintain a reliable continuous sample draw-off without plugging.
Sampling Time Dynamics and Transportation Lag Times: In some installations, where the analyzer and sample
system must be located at a distance from the sample point, the sample transport time must be considered.

Figure 1. Example of the sample preparing system

The time necessary to transport the sample to the analyzer can in some cases contribute the largest share to the
overall system dead-time or turnaround time. Turnaround time is defined as the total time of sample system lag,
dead-time, and the analyzer response time. A convenient means for reducing this transport lag is the use of a fast
loop (see Figure 1.) between the process equipment, an intermediate location (commonly just outside the analyzer
shelter), and a low pressure return point in the process where the sample can be returned.
Sample transport time, or lag time, is a function of the sample line length and diameter, the absolute pressure in
the line, and the sample flow rate. Sample transport time is simply the total volume of the sample line divided by
the average flown rate in the line.
Vaporizing Liquid Samples—Lag Time Considerations: Vaporizing a liquid sample can contribute to a severe
lag time because of the expansion effect of a hydrocarbon liquid changing into a vapor. Typically light
3
hydrocarbons can have a vapor expansion of 600 to 1, which results in 1cm of liquid forming approximately 600
3 3
cm of vapor. Since vapor speed loops may be only approximately 2000 cm /min., a representative sample of liquid
is not purged adequately in the sample line, and partial vaporization might occur if the liquid volume flow is not
sized properly for the vapor flow rate. In high pressure or high temperature applications, it may be advisable to drill
a 1/8 in. hole through rod stock welded to a flange, to avoid the large dead volume of modified thermowells. It is
also advisable to minimize the dead volume between the sample probe and the vaporizing regulator.

Sample Transport Line—General Considerations

1. Tubing runs are recommended because of metallurgy, smaller internal volume, less entrainment due to
abrupt bends, and ease of installation. Piping runs are sometimes required for long speed loops (e.g.,
100m) used to minimize lag times. Specification of tubing should include ensuring the compatibility of
tubing metallurgy to sample chemistry and corrosion allowances (seamless tubing is often selected). The
materials used to construct the tubing can be very important, especially in high or low temperature
installation and where certain chemicals can cause stress cracking of the tubing.

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2. Keep samples lines as short as possible to minimize transport lag time.

3. Use the smallest diameter line available to ensure a representative single phase sample that is consistent
with the required flow rate and the available pressure drop. Sample supply and return lines of 1/4-in. O.D.,
with a 0.035-in. Wall are common for many analyzer systems.
4. Provide sufficient pressure to maintain adequate velocities. Typical linear flow velocities are ~2 – 4 m/sec
for liquids and ~7 – 15 m/sec for gases.
5. Use indicators (flow, pressure, temperature) and check-valves as necessary to ensure that sample flow is
adequate and in the proper direction.
6. The sizing of sample transport lines will be influenced by a number of factors as follows:
• The state of the process sample (whether liquid or vapour), dew point, bubble point, density, and
viscosity will influence the calculations of lag time and pressure drop. For relatively low flow and short
line lengths, the pressure drop should not be significant; however, at a high flow or long line length, the
pressure drop may become an important factor in the system design. Although the specific gravity of a
gas or liquid does not affect the lag time calculation, specific gravity must be considered when
specifying flow control and indicating devices. Tables are available relating flow rate to pressure drop
for different sample line diameters.
• The flow rate, pressure, and sample temperature requirements of the analyzer as configured for the
analysis must be considered. In the case of multi-stream analyzers, dead volume of the system and
adequate flushing of the previous streams must be considered to minimize cross contamination and to
deliver a representative sample.
• Sample conditioning elements contribute to pressure drop and lag time, and must be considered in
calculating the overall sample line pressure drop. A common way to do this is to consider each element
as contributing a pressure drop equal to some equivalent length of tube and adding all these equivalent
lengths to the above calculated straight run length from the sample tap to the analyzer. Even pipe and
tubing elbows and bends contribute to the sample line pressure drop. The purge time of each element
is dependent on the individual volumes and is calculated as the time necessary for a minimum of three
volumes of the sample stream to flow through the element.
• Consideration of operating pressure at the sample tap and of how much pressure can be used to
supply driving power for the sample line is important. For example, even with a high sample point
pressure, there may be some minimum pressure, above which the sample must be maintained at the
analyzer in order to avoid problems such as bubble formation or premature flashing of the sample.
Pressure at the process point is very important since this consideration determines the pressure drop
that is available to drive the sample to the analyzer. Also very important is the pressure at the process
return point. Ultimately, this consideration determines if a continuous return line is feasible or if the
sample must be returned to an approved disposal system.
• Flow in a sample line must be turbulent to ensure that it is well-mixed and representative of the
process. Mixing generally isn’t an issue with gaseous samples, but laminar or poorly mixed liquid
sample flows can result in data that is not representative of the process dynamics. An estimation of
sample mixing may be obtained by calculating the Reynolds Number of the sample flow. The Reynolds
Number is a dimensionless number that is based on the internal diameter of the line, the linear flow
velocity, the density and dynamic viscosity of the gas or liquid by the following equation:
Re = 123.9 (dVp)/(µ)
where
Re = Reynolds Number, a dimensionless number,
d = internal diameter of the line, in cm.,
V = linear flow velocity, in m/sec.,
p = density, in kg/m3,
µ = dynamic viscosity, in centi poise.
Sample flows with Reynolds Numbers greater than 4000 are considered to be turbulent. Flows with values
less than 2000 are considered to be laminar (poorly mixed, or “plug flow”). Sample flow with values
between 2000 and 4000 are considered to be transitional or partially mixed. Since the viscosity and density
of a process stream are known, it is a common practice to calculate the Reynolds Numbers of the common
sample line sizes at various linear velocities. A calculation of the Reynolds Number allows a determination
to be made of the minimum linear velocity required for turbulent flow.
7. In addition to ensuring turbulent flow in the sample line, provisions must often be made to maintain the
temperature above a dew point so that a representative sample is obtained at the analyzer. In such cases,

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the sample lines must be heat traced. Sample composition can be affected if the lines are heated or cooled
excessively. Improper heating of the lines (especially when analyzing for trace amounts) can result in the
tendency of some components adsorbing into the walls of the tube and changing the sample composition
during its transport from the sample tap to the analyzer. Manufactured pre-insulated, pre-traced tubing
bundles are recommended.
8. Sample line routing, in particular accessibility, is an important factor for maintenance. Sharp bends or kinks
in the lines should be avoided. To minimize potential for leakage, also avoid using an excessive number of
fittings, or welded tubing may be used if leakage is critical for the analysis. When possible, the sample lines
should be sloped down to the analyzer location to avoid pocketing. Pre-insulated tubing bundles should be
run in a cable tray to eliminate low spots in the lines. The minimum bend radius for pre-insulated bundles
can be obtained from the manufacturer.
9. Continuous tubing runs must be used for sub-atmospheric pressure applications.

Conditioning the Sample: All samples of process streams require conditioning prior to introduction into the
process analyzer. Conditioning is the interface between the plant and the analyzer that allows the analyzer to
operate for long periods of time with little maintenance. Generally, sample conditioning involves filtering, pressure
control, flow control, temperature control, phase control or phase change, stream or calibration switching, and
indications of these controls.
Multi-stream Switching: There are several factors that should be considered when designing multi-stream
switching systems:
1. Separate conditioning equipments for each stream.
2. Provisions for venting between switching valves to prevent contamination leakage.
3. Cross contamination due to mechanical failure (leakage) or failure to purge the stream previously analyzed.
4. The relative concentrations of the components in each stream. A typical double block-and-bleed, multi-
stream sample system to minimize cross contamination and reducing dead volumes. During operation the
internal volumes between the valves of the unselected streams are vented to a low pressure that allows for
a leakage path out of the system and not into the other sample streams.
Sample Disposal: The circulating sample should be returned to the process at lower pressure using a speed loop
system. When a sample return point does not exist in the process it is necessary to choose whether or not to
discard the sample to the flare system/closed sewer system or provide the means for pumping the sample back
into the process. Discarding of hydrocarbon samples to the atmosphere or an open sewer system must be
minimized or prohibited for environmental reasons. Sample disposal systems are used when the sample is too
valuable to discard or corrosive and would be too hazardous to discard. If there is no possibility for returning the
sample in the process system, sample discharge — possibly after its neutralization — shall be ensured. Due to the
small amount of gas samples their venting to atmosphere is frequently allowed. A suitable solution is to discharge
liquid samples into the slop system. However, the loading conditions of the system — pressure, flow, etc.—shall be
checked for the worst cases as well. Venting or draining into a closed operating space is forbidden, since it could
result in the development of dangerous local concentrations.
Laboratory Sample Taps: Whenever possible, sample taps should be installed in a manner that allows lab
samples to be taken easily to verify the on-line analyzer readings. Locate laboratory sample points so that they do
not interfere with analyzer performance.

2.5 Analyzer House

1. This specification is based on the applicable requirements of EURONORM (EN) Standard No. 61285.
2. The local regulation and standards as well as the requirements of the above European standard shall be
observed in the design of the analyzer house, container or cabinet.
3. The design engineer shall decide during the thorough study of the specifications of the analyzer system
whether to install the analyzer and sampling system without any enclosure, in a cabinet or an analyzer
house on the basis of the analyzer Vendor’s recommendations, specifications and instructions.
Guidelines:
• Installation without enclosure:
The ambient temperature requirements, protection against dust & moisture and protection against
unauthorized operation/tampering, etc. do not require enclosed protection.
• Installation in cabinets:
The ambient temperature requirements, protection against dust & moisture and protection against
unauthorized operation/tampering, etc. require enclosed protection. The open door of the cabinet
during maintenance and site inspection/testing does not interfere with the safety and accuracy of

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measurements. The size and installed position of the analyzer – including all-around access – does not
necessitate a space requirement exceeding 2m by 1m.
• Installation in analyzer house:
The ambient temperature requirements (air conditioned conditions), protection against dust & moisture
and protection against unauthorized operation/tampering, etc. require enclosed protection. The open
door of the cabinet during maintenance and site inspection/testing interferes with the safety and
accuracy of measurements. The size and installed position of the analyzer – including all-around
access – necessitates a space requirement exceeding 2 m by 1 m.
The size of the analyzer house (container) shall be minimum 2.5 m by 2.5 m floor area and 2.3 m
internal height. The size of the analyzer house shall be chosen with 30% spare space to allow future
expansion of equipment.
In addition to the above, the use of a protective cabinet is to be preferred for the installation of a single
analyzer, while installation in an analyzer house is recommended for several analyzers.
4. The following points shall be taken into consideration when determining the location of an analyzer system:
• the distance between the sample point and the analyzer system, the possibility of installing a fast
sample loop, the possibility of installing slop connections, the requirement of venting, the requirement
of fresh air purging, etc. – i.e. all factors having an effect on e.g. the length of the sample line (cost),
the pressure drop and time lag of sampling;
• the hazardous area classification of the installation site;
• the accessibility of the analyzer system;
• the available options for its installation in a safe location, etc.
5. Structural requirements to be satisfied by analyzer houses & cabinets:
The housing material shall be fire-proof and resistant against all substances present at the installation site.
• The material of the walls shall be:
Anti-static, corrosion, fire and weather resistant
Load-bearing walls reinforced
• The floor shall not be porous or slippery. The bottom of the floor shall be sloping to a single end and
provisions shall be made for safe draining at this end.
• Doors:
All doors shall open outwards and be self-locking. Safety escape doors shall also be provided for
analyzer houses.
Air locks shall be provided for analyzer houses installed in Zone-0 & Zone-1 areas.
• Windows:
Closed windows shall be installed with gas-tight insulation and safety glazing.
• Foundations:
All analyzer cabinets and houses shall be installed on raised foundations.
• Ventilation/Purging:
Cabinet/house purging shall be designed so as to comply with the requirements on the ex-proof design
of equipment installed inside enclosed spaces in hazardous areas.
• Internal lighting (emergency lighting as well) shall provide an illumination level required for
maintenance and servicing.
• Lighting shall be provided also outside the house, if required, for the handling of gas bottles, sample
systems, etc.
• Bi-directional communication shall be provided between the house & analyzer(s) and the control room,
as necessary.
6. The installation of isolation/block valves and drains inside the house shall be avoided. The installation of
piping, valves and instrumentation items inside the house shall be designed so that their opening will be
unnecessary under normal conditions. The design shall include automatically actuated safety on-off valves
or flow controllers in order to prevent the ingress of large material volumes inside the house as a result of
some malfunction.
7. Flow restrictions shall be installed outside the house in the air, nitrogen, etc. lines entering the house.
8. The sample conditioning systems of analyzers shall be located preferably outside the analyzer houses.
Ease of maintenance/servicing shall also be taken into consideration in their design.

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9. The gas bottles required for the continuous operation and calibration of analyzers shall be placed in well
ventilated, separate outside bottle batteries integral with the analyzer houses.
10. The volumes of dangerous accessory substances (carbon monoxide, carbon dioxide, nitrogen) shall be
kept at the necessary minimum levels.
11. The temperature inside analyzer houses shall be maintained within the ambient temperature range
specified for the analyzers, or at +10-30°C in lack of such specifications, for the reliable operation of the
analyzers and the proper working conditions of maintenance personnel. Non-compliance with this
requirement may be permitted in special cases. Temperature regulation inside analyzer houses shall be
provided by cooler-heater units complying with the requirements of the applicable hazardous area
classification.
12. Ventilation/Purging
Ventilation and purge systems for analyzer houses shall be designed so that the hazardous area
classification of the enclosed space will not exceed the hazardous area classification of the installation site
and ex-proof protection of the components of the analyzer system installed will comply with hazardous area
classification of the enclosed space. The ventilation/purge system shall also provide for the safety of the
operating and maintenance personnel, for anti-corrosion protection, etc.
The design of natural ventilation systems shall be sized by engineering.
If an analyzer house is equipped with a purging unit (fans), fresh and dust-free air shall be supplied from a
safe area outside the limits of hazardous zones. Purge rate shall be sized so that explosive gas
concentrations will not reach 20% of the lower explosion limit (LEL).
Air exchange rates and pressurisation levels shall be sized by engineering based on the following criteria:
• Governing rates: air shall be exchanged at least five times every hour and minimum 10 times an hour if
the possibility of some gas leak exists.
• The pressurization level shall be maintained at 50-80 Pa gauge and low alarm shall be provided (by
overpressure switch).
• Upon the failure of air exchange and/or pressurization the power supply shall be switched off
automatically for analyzer systems having incorrectly selected ex-proof protection classes.
13. The following alarms shall be displayed as a minimum – both locally and in the control room – in order to
ensure the safe operation of the analyzer houses:
• purge failure,
• flammable gas concentration ≤ 20% LEL,
• oxygen deficiency (concentration ≤ 17%) low or toxic gas concentration high alarm (the high alarm
setpoint for toxic gas concentration shall be given in the analyzers’ own specifications),
• fire and/or smoke detection,
• automatic extinguishing system actuated,
• gas hazard alarm system and fire/smoke detection system failure,
A flashing light shall be mounted outside on the wall of analyzer houses in order to warn plant operators
about the occurrence of hazardous conditions inside the house.
14. Only properly trained personnel shall enter analyzer houses. Safety instructions shall be posted inside the
house in a visible position.
15. External & internal gas hazard detectors shall be installed as required by the hazardous area classification
of the analyzer house installation site. The gas hazard alarm system shall be activated at 20% LEL and the
monitoring/control system forming an integral part of the analyzer house shall initiate the following actions:
• Switch of the power supply from all the electrical equipment installed in the analyzer house which do
not comply with the requirements of the hazardous area classification of the analyzer house installation
site.
• Shut off the sample stream analysed as well as all flammable gas streams (carrier gas, standard gas
for calibration, etc.) required for the operation of the analyzers.
• Activate the audio and light (flasher) alarms mounted outside the analyzer house and repeat these also
inside the analyzer house if such alarms cannot be perceived inside the house. Audio alarms shall
allow acknowledgement (resetting). Light alarms shall allow acknowledgement or be reset
automatically if the concentration of explosive gases is less than 20% LEL.
• A test button shall be installed outside the analyzer house for the periodical testing of audio and light
alarms.

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16. For the safety of maintenance personnel, toxic gas detector(s) and/or oxygen detectors(s) as well as an
emergency signal push-button shall be installed in the analyzer house depending on the particular analysis
functions.
17. The fire/smoke detectors of the analyzer house shall be connected to the fire alarm/protection system of
the given process unit.
18. The design shall take into consideration that no toxic or flammable accessory materials are to be handled
inside the analyzer house, such substances (reagents, standard gases/liquids used for calibration) should
be supplied through tubing from outside the analyzer house.
19. Analyzer houses shall be installed with their own separate power distribution systems. The power supply
system shall comply with the requirements of the hazardous area classification of the installation site. An
electrical main switch interrupting the power supply shall be installed outside the analyzer house (next to
the door).
Analyzer house installation shall be comply with local regulation.
20. Analyzer houses shall be considered as self standing systems with boundries (package limits) defined by
the respective project specification in respect of both engineering and operation. Self-standing control
systems (relay systems or PLC) or remote control units integrated into the central control system of the
facility shall be provided for ensuring proper operation in respect of the:
• protection & control of analyzers,
• protection & control of the sample system,
• protection of maintenance personnel,
• communication with the control system of the process unit, and
• communication with the remote supervisory unit (if any).
21. Utility (e.g. instrument air, nitrogen, steam & water) connections as well as the discharge of process (gas,
liquid) streams processed by the analyzers shall be taken into consideration for the design and installation
of analyzer houses.
22. Slop and purge systems shall be designed in compliance with the respective project specification.
23. The installation and requirements (e.g. flow monitoring, etc.) of fast-loop sample systems shall also be
defined in compliance with the respective project specification.
24. Provisions shall also be made for the availability of all auxiliary functions and materials required for the
uninterrupted operation of analyzer systems (heat tracing of sample system, switching between empty &
full gas bottles, display of messages & alarms for local & remote operators, etc.).
25. Analyzer houses shall be specially engineered if gases dangerous/harmful to health are present in an
analyzer house.

3 Maintenance requirements
Proper maintenance of the analyzer and sample system is an essential factor for the on-stream availability of the
analyzer data and should be considered in the design and installation of the system. The following considerations
should be addressed based on the equipment and components used in the system:
1. Simplicity, consistency between designs, and accessibility for maintenance. A means for identifying a
malfunction should be provided, and any malfunctioning part or piece should be easily and quickly
replaceable.
2. When operating at elevated temperatures, components should be mounted in an enclosure, not insulated
and packed individually.
3. Proper valving should be provided for venting the system’s operating pressure safely before maintenance.
4. Flow meters and pressure gauges should be provided at points throughout the sample systems to aid in
locating plugged components, flashing samples, condensable materials, and proper flow rates.
5. Systems that handle corrosive or extremely hazardous streams should have purge capabilities for safely
cleaning and flushing the system before maintenance is performed.
6. Sample volumes should be kept as small as possible.

4 Datasheet to be provided for MMS (maintenance management system):

See app.

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5 Appendix
4: Datasheet to be provided for MMS (maintenance management system): N/A

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