Accessories

Monoflange
Process and instrument version
Model IVM
WIKA data sheet AC 09.17

Applications
■■ Shut-off and venting of pressure measuring instruments
■■ Flange connection of instruments with threaded
connections to pipelines or vessels
■■ For aggressive liquids, gases and vapours, also in
aggressive environments
■■ Oil and gas industry, chemical and petrochemical
industries, power plants, primary metals

Special features
■■ Compact design with low number of potential leakage
points reduces overall weight
■■ Threaded mounting of bonnets not wetted to avoid seizure
and leaks
■■ Smooth valve actuation, even under high pressure, leads
to fault-free operation and long service life
■■ Metal valve seat with leak-tested tightness in accordance
with BS6755 / ISO 5208 leakage rate A Fig. left: Instrument version
■■ Instrument version for “fugitive emissions” according to Fig. right: Process version with OS&Y bonnet
TA-Luft and ISO 15848-1

Description

Due to its one-piece design, the model IVM monoflange The super-finished machining of the internal parts, such as
can withstand high overpressures. It ensures a robust and spindle and spindle tip, allows a very smooth and precise
compact mounting of the measuring instrument directly to the operation, even at high pressures, and avoids leaks or
process flange. The use of metal and graphite seals allows seizure of the valve. The OS&Y bonnet has been specifically
working at high temperatures. developed in accordance with the highest international
standards for the direct mounting of IVM monoflanges on
In combination with pressure measuring instruments, pipelines or vessels.
diaphragm seals or level measuring instruments, the valves
are suitable for use in critical applications like refineries or WIKA offers the professional assembly of different
steam generation systems. The IVM can be used for “fugitive instruments and valves into ready-to-install hook-up
emissions” in chemical applications or for processes with solutions.
critical gases. The bubble-tight leak-tested metal seat makes
these valves perfectly suitable for sour gases and natural gas
processing or nitrogen production plants.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 1 of 10

Data sheets showing similar products:

Block-and-bleed valve, 2-valve manifold; models IV20 and IV21; see data sheet AC 09.19
Valve manifold for differential pressure measuring instruments, models IV30, IV31, IV50 and IV51; see data sheet AC 09.23
Specifications
Monoflange, model IVM
Standards used
Design ■■ ASME B16.5, pipe flanges and flange fittings
■■ ASME B16.34, valves - flanged, threaded and welding end
■■ ASME B1.20.1, pipe threads, general purpose (inch)
■■ ASME B31.1, power piping
■■ ASME B31.3, process piping
■■ ISO 17292, metal ball valves for petroleum, petrochemical and allied industries
■■ MSS SP-99, valves for measuring instruments
Tests ■■ API 598, valve inspection and testing
■■ BS EN ISO 10497, type testing in accordance with fire safety requirements
■■ ISO 5208, pressure testing of metallic valves with leakage rate A
■■ MSS SP-61, pressure testing of valves
■■ DIN EN 12266-1, pressure tests, test procedures and acceptance criteria for industrial valves
Material requirements ■■ NACE MR0175 / ISO 15156, use in H₂S-containing environments in oil and gas production
■■ NORSOK M-630, specificaiton for use in pipelines (Norway)

Marking MSS SP-25, marking on valves

Function ■■ Block (shut off)
(for functional diagram, see - 1 x bonnet for shutting off the process
next page) ■■ Block and bleed (shut off and vent)
- 1 x bonnet for shutting off the process
- 1 x standard bonnet for venting
■■ Double block and bleed (2 x shut off and 1 x vent)
- 2 x bonnets for shutting off the process
- 1 x standard bonnet for venting
Version ■■ Process version (with OS&Y bonnet on the process side)
■■ Instrument version (with standard bonnet on the process side)

Process connection ■■ Flange ½" … 2" / class 150 … class 2500, following ASME B16.5
(see page 8 ff.) ■■ Flange DN 15 … DN 25 / PN 16 … PN 100, following EN 1092-1

Surface roughness Ra of the sealing face

Following ASME B16.5 ■■ RF: 3.2 ... 6.3 μm [125 ... 250 μin] (spiral surface)
■■ RJ: 1.6 μm [63 μin]

Following EN 1092-1 ■■ Form B1: 3.2 ... 6.3 μm [125 ... 250 μin]
■■ Form B2: 0.8 ... 3.2 μm [32 ... 125 μin]

Instrument connection ■■ 1 x ½" NPT female, axial

(see examples on page 7) ■■ 1 x ½" NPT female, swivel adapter, axial
■■ 2 x ½" NPT female, 1 x radial and 1 x axial 1)
■■ 2 x ½" NPT female, 1 x swivel adapter, radial and 1 x axial 1)
■■ Connecting flange
Vent connection ■■ Without
■■ ¼ NPT female, plug screw is included in delivery, though not pre-fitted.
■■ ½ NPT female, plug screw is included in delivery, though not pre-fitted.

1) Axial and/or radial instrument connection can be used. Optionally, one measuring instrument connection can be closed with the supplied plug screw.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 2 of 10

Functional diagram
Block (shut off) Block and bleed (shut off and vent) Double block and bleed
(2 x shut off and 1 x vent)

Colour code Blue: Shut off

Red: Vent

Materials
Wetted parts
Flange ■■ Stainless steel 316L (standard)
■■ Duplex F51 (1.4462)
Monoflange
■■ Super Duplex F55 (1.4501)
Spindle tip ■■ Hastelloy C276 (2.4819)
■■ Monel 400 (2.4360)
■■ Steel A350 LF2 (1.0566), galvanised carbon steel per ISO/EN 2081 1) 2)
Sealing packing ■■ PTFE
■■ Graphite
■■ RTFE
Reinforced PTFE, material for optional certificate „Emission protection in accordance with TA-Luft
(VDI 2440) and ISO-15848-1
Non-wetted parts
Gland packing, gland nut, yoke, Stainless steel 316L
valve spindle, seal bush, threaded
bolt with nut
Handle ■■ Stainless steel
■■ Stainless steel 316/316L

1) Lacquered version on request

2) Flange from steel A350 LF2 (1.0566), bonnet and spindle tip from stainless steel 316/316L

WIKA data sheet AC 09.17 ∙ 03/2019 Page 3 of 10

Bonnet versions
Standard OS&Y

T-bar handle
T-bar handle
Yoke

Coloured dust cap Blue dust cap

Gland nut Gland packing

Threaded bolt with nut
Valve spindle
Valve spindle
Seal bush Seal bush
Sealing packing Sealing packing

Bonnet body Bonnet body

Spindle tip Sealing ring
Sealing ring Spindle tip

Specification Standard bonnet OS&Y bonnet

Standards complied with ■■ ASME VIII div. 1 and MSS SP-99 ■■ ASME VIII div. 1 and ASME B31.1, ASME B31.3
■■ TA-Luft (VDI 2440) and ISO-15848-1 (option) ■■ API 607, ISO 10497, BS 6755-2

Dust cap colour code Blue: Shut off

Red: Vent
Spindle tip Non-rotating, low-wear, blow-out-safe
Valve seat Metal-to-metal, back seat design
Valve bore size 5 mm [0.197 in]

Bonnet options
Anti-tamper version Anti-tamper version with padlock

Anti-tamper key

1)

1) The anti-tamper key is not included in delivery of the anti-tamper version, but available as accessory.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 4 of 10

Pressure-temperature diagram
700
(10153)

PTFE
600
(8702) Graphite
RTFE 1)
500
(7252)
Pressure in bar (psi)

400
(5802)

300
(4351)

200
(2901)

100
(1450)

Temperature in °C (°F)

Material of the Max. permissible operating pressure in bar Max. permissible operating pressure in psi
sealing packing at temperature in °C at temperature in °F
PTFE 690 bar at 38 °C 10,000 psi at 100 °F
276 bar at 204 °C 4,000 psi at 400 °F
Graphite 420 bar at 38 °C 6,000 psi at 100 °F
209 bar at 538 °C 3,030 psi at 1.000 °F
RTFE 1) 420 bar at 38 °C 6,000 psi at 100 °F
276 bar at 180 °C 4,000 psi at 356 °F

1) Reinforced PTFE, material for optional certificate „Emission protection in accordance with TA-Luft (VDI 2440) and ISO-15848-1

The minimum design temperature is -54 °C [-65 °F].

For continuously low operating temperatures ≤ -54 °C [≤ -65 °F] a special design is needed.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 5 of 10

Installation examples
Instrument version Process version
Horizontal flange arrangement Horizontal flange arrangement

Vertical flange arrangement Vertical flange arrangement

Instrument monoflanges are, as shown, installed behind an initial The monoflange assembly enables the integration of up to three
shut-off device. Process monoflanges are designed with an OS&Y bonnets with compact dimensions. Flange connections are
bonnet for the process-side shut-off. The broad design of the advantageous for frequent maintenance and service operations and
passage geometries of the OS&Y bonnet prevents clogging through for applications with hazardous media.
particle accumulation. With the use of process monoflanges, the
purchase of traditional shut-off devices can be saved.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 6 of 10

Examples for process connection and instrument connection

Process and instrument connection: Flange Process connection: Flange

Instrument connection: Swivel adapter, axial

WIKA data sheet AC 09.17 ∙ 03/2019 Page 7 of 10

Model IVM, process version
Block Double block and bleed, up to DN 2" Class 150

14325853.01

14325839.01
Block and bleed, up to DN 2" Class 150 Monoflange design from DN 2" Class 300 and higher

14325848.01

14325842.01
Flange connection per ASME B 16.5
DN Class Dimensions in mm [in] x 1) Weight
kg [lb]
A B C ØD E for RF E for RJ F
½" 150 100 [3.94] 96 [3.78] 113 [4.45] 88.9 [3.5] 50.6 [2] - 40 [1.57] 4 0.7 [1.45]
½" 300/600 103.2 [4.06] 99.3 [3.91] 116.8 [4.60] 95.2 [3.75] 55.4 [2.18] 54.5 [2.15] 4 0.8 [1.8]
½" 900/1500 116 [4.57] 112.3 [4.42] 131.4 [5.17] 120.6 [4.75] 55.4 [2.18] 55.4 [2.18] 4 1.3 [2.95]
½" 2500 121 [4.76] 117 [4.61] 138.5 [5.45] 133.3 [5.25] 55.4 [2.18] 55.4 [2.18] 4 1.7 [3.71]
¾" 150 105 [4.13] 101 [3.98] 118.8 [4.68] 98.4 [3.87] 50.6 [2] - 4 0.9 [1.9]
¾" 300/600 115 [4.53] 110.8 [4.36] 129.6 [5.10] 117.5 [4.62] 55.4 [2.18] 55.4 [2.18] 4 1.3 [2.8]
¾" 900/1500 121 [4.76] 117 [4.61] 136.7 [5.38] 130.2 [5.12] 55.4 [2.18] 55.4 [2.18] 4 1.6 [3.5]
¾" 2500 122 [4.80] 118 [4.65] 142 [5.59] 139.7 [5.5] 55.4 [2.18] 55.4 [2.18] 4 1.9 [4.2]
1" 150 109.8 [4.32] 106 [4.17] 124.2 [4.89] 107.9 [4.25] 50.6 [2] 55.4 [2.18] 4 1.1 [2.4]
1" 300/600 118 [4.65] 114 [4.49] 133 [5.24] 123.8 [4.87] 55.4 [2.18] 55.4 [2.18] 4 1.5 [3.3]
1" 900/1500 130.8 [5.15] 127 [5] 147 [5.79] 149.2 [5.87] 55.4 [2.18] 55.4 [2.18] 4 2.1 [4.7]
1" 2500 135.6 [5.34] 132 [5.20] 152 [5.98] 158.7 [6.25] 55.4 [2.18] 55.4 [2.18] 4 2.5 [5.5]
1 ½" 150 119.5 [4.70] 115.6 [4.55] 135 [5.31] 127 [5] 50.6 [2] 55.4 [2.18] 4 2.4 [5.3]
1 ½" 300/600 134 [5.28] 130 [5.12] 150.2 [5.91] 155.6 [6.12] 55.4 [2.18] 55.4 [2.18] 4 2.4 [5.3]
1 ½" 900/1500 146.5 [5.77] 142.6 [5.61] 163 [6.42] 177.8 [7] 55.4 [2.18] 55.4 [2.18] 4 3.2 [7.1]
1 ½" 2500 158 [6.22] 154 [6.06] 174.7 [6.88] 203.2 [8] 55.4 [2.18] 56.9 [2.24] 4 5.4 [11.8]
2" 150 132.5 [5.22] 128.6 [5.06] 148.7 [5.85] 152.4 [6] 50.6 [2] 55.4 [2.18] 4 2.4 [5.2]
2" 300/600 138.9 [5.47] 135 [5.31] 155.5 [6.12] 165.1 [6.5] 55.4 [2.18] 56.9 [2.24] 8 2.8 [6.1]
2" 900/1500 164.6 [6.48] 161 [6.34] 182 [7.17] 215.9 [8.5] 55.4 [2.18] 56.9 [2.24] 8 4.8 [10.5]
2" 2500 174 [6.85] 170.2 [6.70] 191.5 [7.54] 234.9 [9.25] 66.2 [2.61] 67.7 [2.67] 8 7.1 [15.7]

1) Number of screws

Plug screw for vent connection is included in delivery, though not pre-fitted.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 8 of 10

Model IVM, instrument version
Block Double block and bleed, up to DN 2" Class 150

14325430.01

14325447.01
Block and bleed, up to DN 2" Class 150 Monoflange design from DN 2" Class 300 and higher

14325434.01

14325450.01
Flange connection per ASME B 16.5
DN Class Dimensions in mm [in] x 1) Weight
kg [lb]
A B ØD E for RF E for RJ F
½" 150 99.9 [3.9] 96 [3.7] 88.9 [3.5] 40.6 [1.6] -. 30 [1.2] 4 0.5 [1.15]
½" 300/600 103.2 [4.1] 99.3 [3.9] 95.2 [3.75] 45.3 [1.8] 44.5 [1.7] 30 [1.2] 4 0.5 [1.2]
½" 900/1500 116.3 [4.6] 112.4 [4.4] 120.6 [4.75] 45.3 [1.8] 45.3 [1.8] 30 [1.2] 4 1 [2.2]
½" 2500 122.8 [4.8] 118.9 [4.7] 133.3 [5.25] 45.4 [1.8] 45.4 [1.8] 30 [1.2] 4 1.3 [2.9]
¾" 150 104.9 [4.1] 101 [3.9] 98.4 [3.87] 40.6 [1.6] - 30 [1.2] 4 0.7 [1.5]
¾" 300/600 114.7 [4.5] 110.8 [4.4] 117.5 [4.62] 45.4 [1.8] 45.4 [1.8] 30 [1.2] 4 0.7 [1.5]
¾" 900/1500 121.2 [4.8] 117.3 [4.6] 130.2 [5.12] 45.4 [1.8] 45.4 [1.8] 30 [1.2] 4 1.2 [2.7]
¾" 2500 126 [4.9] 122.1 [4.8] 139.7 [5.5] 47.1 [1.8] 47.1 [1.8] 31.7 [1.25] 4 1.6 [3.5]
1" 150 109.8 [4.3] 105.9 [4.2] 107.9 [4.25] 40.6 [1.6] 45.3 [1.8] 30 [1.2] 4 1 [2.1]
1" 300/600 118 [4.6] 114 [4.5] 123.8 [4.87] 45.4 [1.8] 45.3 [1.8] 30 [1.2] 4 1.2 [2.6]
1" 900/1500 130.9 [5.1] 127 [5.0] 149.2 [5.87] 45.4 [1.8] 45.4 [1.8] 30 [1.2] 4 1.6 [3.6]
1" 2500 135.4 [5.3] 131.5 [5.2] 158.7 [6.25] 50.4 [2.0] 50.4 [2.0] 35 [1.4] 4 2.5 [5.5]
1 ½" 150 119.6 [4.7] 115.7 [4.6] 127 [5] 40.6 [1.6] 45.4 [1.8] 30 [1.2] 4 1.4 [3]
1 ½" 300/600 134 [5.3] 130 [5.1] 155.6 [6.12] 40.6 [1.6] 45.4 [1.8] 30 [1.2] 4 1.8 [4]
1 ½" 900/1500 146.5 [5.8] 142.6 [5.6] 177.8 [7] 47.2 [1.9] 47.2 [1.9] 31.8 [1.2] 4 3.5 [7.7]
1 ½" 2500 158.1 [6.2] 154.2 [6.1] 203.2 [8] 60.1 [2.3] 61.6 [2.4] 44.7 [1.76] 4 4.8 [10.6]
2" 150 132.5 [5.2] 128.6 [5.1] 152.4 [6] 40.6 [1.6] 45.4 [1.8] 30 [1.2] 4 1.8 [3.9]
2" 300/600 138.9 [5.5] 135 [5.3] 165.1 [6.5] 45.4 [1.8] 46.9 [1.85] 30 [1.2] 8 1.8 [4]
2" 900/1500 164.6 [6.5] 160.7 [6.3] 215.9 [8.5] 53.5 [2.1] 55 [2.2] 38.1 [1.5] 8 4.7 [10.3]
2" 2500 174 [6.85] 170.1 [6.7] 234.9 [9.25] 66.2 [2.6] 67.7 [2.7] 50.8 [2.0] 8 7.4 [16.3]

1) Number of screws

Plug screw for vent connection is included in delivery, though not pre-fitted.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 9 of 10

 Approvals
Logo Description Country
EAC (option) Eurasian Economic Community
Machinery directive
- CRN Canada
Safety (e.g. electr. safety, overpressure, ...)

Manufacturer‘s information and certificates

Logo Description
- PMI 1) test certificate (option)
Valve body
- Certificate for oxygen versions (option)
- Oil and grease free for oxygen per ASTM G93 level C
- Sealing packing 2) and lubricants in accordance with BAM requirements
- Limits of the permissible operating ranges for pressure and temperature:
420 bar at 60 °C or 6,000 psi at 140 °F
90 bar at 200 °C or 1,305 psi at 392 °F
- Emission protection in accordance with TA-Luft (VDI 2440) and ISO-15848-1 (option) 3)
- Tightness class: AH
- Endurance class: C01
- Temperature class: -29 ... +180 °C [-20 ... +356 °F]
- Type tested for fire safety in accordance with API 607, ISO 10497, BS 6755-2 4)

1) Positive material identification

2) PTFE or graphite
3) Only for standard bonnet
4) Only for OS&Y bonnet

Certificates
■■ 3.1 inspection certificate per EN 10204
- Material certificate for the valve body per NACE MR0103/MR0175
- Confirmation of pressure tests per API 598 5)
■■ 3.1 inspection certificate per EN 10204 (option)
- Material certificate for all wetted parts per NACE MR0103/MR0175
- Confirmation of pressure tests per API 598 5)

5) Shell test: 15 s test duration with 1.5 times the permissible working pressure
Seat test: 15 s test duration with 1.1 times the permissible working pressure

© 03/2019 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.

WIKA data sheet AC 09.17 ∙ 03/2019 Page 10 of 10

03/2019 EN

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
Fax +49 9372 132-406
info@wika.de
www.wika.de