MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
TABLE OF CONTENTS
1.0
SCOPE
2.0
CODES, REGULATIONS AND STANDARDS
3.0
GENERAL
4.0
DESIGN
5.0
MATERIALS
6.0
GENERAL INSULATION APPLICATION INFORMATION
7.0
APPLICATION OF HOT SERVICE INSULATION
7.1
7.2
7.3
7.4
8.0
APPLICATION OF COLD SERVICE INSULATION
8.1
8.2
8.3
8.4
9.0
GENERAL
PIPING
FITTINGS, FLANGES AND VALVES
VESSELS AND EQUIPMENT
GENERAL
PIPING
FITTINGS, FLANGES AND VALVES
VESSELS AND EQUIPMENT
GUARANTEE
10.0 DRAWINGS
TABLE I
- HOT SERVICE INSULATION
TABLE II - STEAM HOT SERVICE INSULATION
TABLE III - PERSONNEL PROTECTION INSULATION
TABLE IV - COLD SERVICE INSULATION
8100-A
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
1.0
8100-A
SCOPE
This specification covers the minimum requirements for the supply
and installation of insulation on piping, vessels, and equipment
operating in hot or cold service. Underground piping is not covered by
this specification.
2.0
CODES, REGULATIONS AND STANDARDS
2.1
Contractor shall meet or exceed the requirements of the latest edition
of the following codes, regulations and standards, except as
superseded herein. In cases where more than one code, regulation or
standard apply to the same condition, the most stringent shall be
followed. In the event of a conflict between this specification and
other specifications or correspondence, the OWNER shall be consulted
and a ruling, in writing, shall be obtained before any work is started.
American Society for Testing and Materials (ASTM):
-
A167
Plate,
Stainless and Heat Resistant Chromium Nickel Steel
Sheet and Strip
B209
Aluminum-Alloy Sheet and Plate
C168
Definition of Terms Relating to Thermal Insulation of
Materials
C449
and
Mineral Fiber Hydraulic-Setting Thermal Insulating
Finishing Cement
C533
Calcium Silicate Block and Pipe Thermal Insulation
C547
Mineral Fiber Preformed Pipe Insulation
C592
Mineral Fiber Blanket Insulation and Blanket-Type Pipe
Insulation (Metal-Mesh Covered) (Industrial Type)
C612
Mineral Fiber Block and Board Thermal Insulation
C795
Insulation Materials for Application to Austenitic
Stainless Steel
Occupational Health and Safety Act
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
2.2
8100-A
The following General Specifications shall be used in conjunction with
this specification where applicable:
8400 - External Painting and Protective Coatings
2.3
Some requirements in this specification may be modified by specific
requirements in the Purchase Specification. In case of conflict, the
specific requirements supersede this specification.
2.4
Any deviation from this specification must be approved, in writing, by
OWNER. Such written approval must be obtained prior to the
commencement of any work which would constitute such a deviation.
3.0
GENERAL
The insulation Manufacturers instructions and recommendations as to
the selection and methods of application of insulation shall
supplement this specification. In the event of a conflict OWNER shall
make the final decision.
4.0
DESIGN
4.1
Insulation shall be supplied to meet the following requirements:
(i)
To conserve energy;
(ii) To maintain process temperatures to protect against undesired
condensation, freezing or boiling;
(iii) To control external condensation to prevent moisture from
reaching the metal surface; and
(iv) To protect personnel from burns.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
4.2
Personnel Protection
4.2.1
Insulation for personnel protection shall be provided as follows on all
piping and equipment adjacent to work platforms or other operating
areas where the maximum operating bare metal temperature exceeds
60C:
(i)
Horizontal piping where the bottom of pipe elevation is less than
2.5 meters above grade or a working platform;
(ii) Those portions of vertical piping less than 2.5 meters above
grade or a working platform;
(iii) Piping adjacent to and within 600 mm of a working platforms; and
(iv) Where specified by OWNER.
4.2.2
Insulation of piping for personnel protection shall be limited to the
pipe and pipe fittings excluding flanges and valves.
4.2.3
Where required, insulation for personnel protection shall be installed
from 150 mm above grade or working platform to a height of 2.5
meters above grade or working platform.
4.2.4
Insulation for personnel protection is not required where screens are
to be installed for this purpose.
4.2.5
Where alternate personnel protection measures are considered
economical, details shall be submitted to OWNER for approval.
4.3
Insulation shall be provided for all instrument leads, instrument
tubing, instrument bridles, plugs, thermowells, and all other directly
connected instruments wherever there is a possibility of freezing.
4.4
Where insulation is required on the outside of piping, vessels or
equipment that extends through an exterior building wall or roof, the
insulation shall not stop at the exterior of the building but shall be
extended for 300 mm inside the building.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
4.5
Piping operating above 60C and located within 150 mm of electrical
conduit or Teck cable shall be insulated for a distance of 300 mm on
either side of the conduit or Teck cable.
4.6
Insulation thickness shall be selected in accordance with the following
Tables forming part of this specification:
Table
Table
Table
Table
III III IV -
Hot Service Insulation
Steam Hot Service Insulation
Personnel Protection Insulation
Cold Service Insulation
5.0
MATERIALS
5.1
General
5.1.1
Use of materials other than those specified requires OWNERs
approval.
5.1.2
All materials supplied shall be new and undamaged. All insulation
material shall be properly stored and protected from moisture.
Insulation that is damp or wet shall be properly dried to the
satisfaction of OWNER or replaced at Contractors expense.
5.1.3
All insulation shall be rigid and self-supporting.
5.1.4
Insulation materials containing asbestos or polyurethane shall not be
used.
All insulation materials selected shall conform to the
regulations of the latest edition of the Occupational Health and Safety
Act and all other applicable standards.
5.1.5
Insulation materials applied to austenitic stainless steel shall meet the
requirements of ASTM C-795.
5.1.6
All metal primers, adhesives, insulating cement, moisture barrier
sealers, and weather-proofing must be meet the insulation
Manufacturers recommendations and be compatible with the
insulation used.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
5.2
Material Specifications
5.2.1
Piping Insulation
8100-A
Temperature Limits
Material
15C to 750C
Calcium
silicate,
factory
Manson Calmax or equal.
-25C to 200C
Glass fiber, factory fabricated, Manson
Alley K or equal.
-175C to 650C
Cellular
glass,
factory
fabricated,
Pittsburgh Corning Foamglas or equal.
fabricated
Note: Glass fiber pipe insulation shall not be used in locations where
damage to the insulation can occur as a result of walking on
lines or from any other cause that may arise during normal
operation or required maintenance of adjacent equipment or
facilities.
5.2.2
Vessels and Equipment Insulation
Calcium silicate (Manson Calmax or equal) shall be used for hot
service. Cellular glass (Pittsburgh Corning Foamglas or equal) shall be
used for cold service.
Polyisocyanurate Foam may be used for cold service with OWNERs
approvals.
5.2.3
Adhesives, Cements, Coatings and Sealers
Adhesive
Finishing Cement Insulating Cement
Joint Sealant
Vapour Barrier
Weather Barrier
Weather-proofing
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Pittcote 88 or equal
Thermocote 1-FW or equal
- Thermocote 1-GP/FF, Thermocote 1-FW, or
equal
Pittseal 444 or Chil-Pruf CP-22/23 or 24
Bakelite 110-14, Pittcote 300 or equal
Bakelite 110-14, Pittcote 404 or equal
Childers CP-10 and 11 Vi-Cryl, Bakelite 100-14 or
44, or equal
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
5.2.4
Flashing compound shall be GE SCS 1200 or 1209 silicone mastic or
equal.
5.2.5
Expansion joint filler material shall be mineral wool fiber or glass fiber
with temperature limits equal to or better than the required operating
temperatures.
5.2.6
Securements and Coverings
5.2.6.1 Securements
(i)
16 gauge (1.6 mm) type 304 stainless steel wire shall be used
to secure pipe insulation and insulation around fittings and
equipment.
(ii)
0.5 mm x 19 mm wide type 304 stainless steel bands shall be
used to secure insulation and metal jacketing on piping, vessels,
and equipment.
5.2.6.2 Metal Jacketing
(i)
Metal jacketing shall be Alcan T-3000-H14 series, T-1100-H14 or
equal stucco embossed aluminum with a factory applied moisture
barrier of 0.015 mm minimum epoxy.
SS 304 metal jacketing shall be used in areas subject to fire
exposure.
(ii) For piping, jacketing shall be factory rolled, minimum 0.5 mm
thick, field cut to proper length. In areas where the piping may
be walked on or otherwise damaged, jacketing shall be minimum
0.6 mm thick.
(iii) For fittings, flanges, valves, and unions, jacketing shall be factory
formed, minimum 0.5 mm thick.
(iv) For horizontal vessels less than 610 mm 0.D., jacketing shall be
minimum 0.5 mm thick. Between 610 and 2438 mm O.D.,
jacketing shall be minimum 0.6 mm thick, and 0.8 mm thick for
vessels larger than 2438 mm 0.D.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
(v) For vertical vessels only, 0.5 mm thick x 32 mm (pitch) x 6 mm
(depth) corrugated aluminum shall be used provided wind loads
have been allowed for.
5.2.7
Miscellaneous Materials
Wire Mesh
- 25 mm nominal hexagonal mesh of 20 gauge (0.9
mm) galvanized steel wire.
Metal Screws
- No. 8 x 14.3 mm self-tapping hex head panhead
type
305 stainless steel
Glass Fabric
- Glassfab (open weave)
S-clips
- 0.5 mm x 12.7 mm type 304 stainless steel
Expansion Springs
- Childers Chil - Springs or equal
6.0
GENERAL INSULATION APPLICATION INFORMATION
6.1
The Contractor shall perform all work with the highest quality
workmanship throughout to provide a neat, uniform appearance with
no sharp edges exposed.
6.2
Insulation shall not be applied until all testing such as hydrostatic, Xray (with X-ray numbers recorded on isometric piping drawings), etc.
has been completed on all piping and equipment involved and all
leaks have been repaired or made tight.
6.3
All surfaces to be insulated shall be thoroughly cleaned of all dirt,
grease, rust, scale, etc., and shall be perfectly dry before insulation is
applied.
6.4
Insulation shall not be installed during weather which might cause the
pipe or insulation to become wet. Insulation to be installed over an
extended period must be protected to ensure it remains dry until it
has been properly sealed.
6.5
Insulation shall be installed such that shrinkage is held to a minimum.
Any cracks or openings that occur in the insulation or weatherproofing are to be filled in with additional insulation or weatherproofing to provide a smooth sealed surface.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
6.6
Insulation shall not cover the face of gauge glasses, equipment name
or data plates or tags, nor be applied so as to interfere with dynamic
parts of instruments or equipment.
6.7
All openings in metal jacketing for manways, nozzles, nipples, pipe
supports, etc., are to be neatly cut to provide a snug fit and shall be
thoroughly sealed and weather-proofed to prevent moisture from
penetrating under the jacket. Openings shall be fitted with a metal
collar or suitable flashing embedded in sealant and screwed firmly in
place.
6.8
At all flanges, unions, and pipe terminations, the pipe insulation shall
be bevelled at a 45 angle to facilitate removal of flange bolts and
union collars without damage to the main pipe insulation and metal
jacketing. A screwed and sealed metal cover shall be installed.
6.9
Metal screws shall not be used on cellular glass insulation.
6.10
The thickness of basic insulation on pipe fittings shall be the same as
the thickness of insulation of adjoining pipe.
6.11
All insulation shall be clad with metal jacketing as far as is reasonably
practical. Jacketing shall be installed so as to shed water and protect
against wind and blowing rain.
7.0
APPLICATION OF HOT SERVICE INSULATION
7.1
General
7.1.1
Provision for the expansion of hot equipment shall include the
installation of expansion springs in circumferential banding securing
insulation and jacketing.
7.1.2
Engine exhausts operating above 300C, or where specified by
OWNER, shall be covered with expanded metal shrouding secured to
steel rings to provide an air space between exhaust pipe and jacket. If
specified, 50 mm thick calcium silicate insulation shall be installed
over the rings prior to cladding.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
7.2
Piping
7.2.1
Factory fabricated sectional pipe insulation shall be applied in
staggered joint construction and secured with wire loops or bands on
225 mm centers. On multiple layer construction, all joints shall be
lapped one-half of each section between layers. Each layer shall be
secured separately. All joints shall be securely butted and all cracks,
joints, etc., shall be filled with insulating cement or glass fiber as
appropriate.
7.2.2
Mastic sealer shall be used around pipe supports where the insulation
is punctured by the support.
7.2.3
Heat traced lines shall be insulated so as to completely cover both
line and tracing.
7.2.4
Insulation shall be covered with metal jacketing lapped a minimum of
50 mm on all seams and secured with screws and bands, locating one
band at each lap joint and spaced a maximum of 450 mm on center.
Vertical jacketing shall be supported with S clips.
7.2.5
All steam lines shall be insulated.
7.3
Fittings, Flanges and Valves
7.3.1
Valves, flanges and unions shall not normally be insulated unless
specified by OWNER. All other fittings are to be insulated.
7.3.2
Fittings shall be insulated with standard factory formed insulation and
secured with wire loops or bands, minimum two per section. All joints
shall be filled with insulating cement or glass fiber as appropriate.
Insulation shall be covered with factory formed standard metal
jacketing.
7.3.3
Insulation and jacketing on valves, flanges and unions shall be
installed so as to be removable without damage to the main pipe
insulation.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
7.4
Vessels and Equipment
7.4.1
Vessels
8100-A
7.4.1.1 Vessels shells shall be insulated with factory fabricated insulation
curved or grooved to fit the vessel shell contour. If additional layers
are required, insulation shall be installed with staggered joints. Each
layer shall be secured with bands, machine stretched, and fastened on
300 mm centers. All cracks or voids shall be filled with insulating
cement. Insulation shall be covered with metal jacketing lapped a
minimum 75 mm on all seams. Jacketing shall be secured with metal
screws on 150 mm centers on longitudinal seams and with bands,
located at lap and spaced on a maximum of 450 mm on center.
7.4.1.2 Vessel heads shall be insulated in the same manner as the shell.
Insulation shall be covered with metal jacketing in a pie shaped or
segmented arrangement.
7.4.1.3 Corrugated jacketing on vertical vessels shall be installed using the
S clip method and lapped a minimum of two (2) corrugations on
vertical seams.
7.4.1.4 For vessels up to and including 900 mm O.D., jacketing shall be
secured using plain bands. For vessels greater than 900 mm O.D.,
banding shall be sealed.
7.4.1.5 Expansion joints shall be provided under each insulation support ring.
A 25 mm space between the top of the insulation and the underside
of the support ring shall be filled with mineral wool insulation.
7.4.1.6 A band shall be placed adjacent to heads of horizontal vessels and at
the top sheet on vertical vessels to secure flashing between head and
shell jackets.
7.4.1.7 Vessel skirts, saddle supports, bottom heads, and flanged connections
shall not normally be insulated unless specified by OWNER.
7.4.2
Insulation and jacketing on exchanger flanges and heads shall be
installed so as to be removable without damage to the main shell
insulation.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
7.4.3
8100-A
Equipment
7.4.3.1 Whenever possible, for equipment of irregular shape, insulation shall
be of the same type and thickness as specified for vessels. Insulation
and metal jacketing shall be installed so as to be removable.
7.4.3.2 Insulating cement, where required shall be applied in layers 20 to 25
mm thick. Every layer shall be reinforced with steel mesh. The outer
surface of the insulating cement shall be finished with a smooth layer
of finish cement.
8.0
APPLICATION OF COLD SERVICE INSULATION
8.1
General
8.1.1
Cold insulation shall be installed specifically in accordance with the
Manufacturers recommendations, and generally as outlined below.
8.1.2
All surfaces requiring cold insulation shall be primed with rust
inhibiting paint or coating as specified by the insulation manufacturer.
8.1.3
All gauge glasses, column, level controllers, thermowells, etc., shall be
fully insulated.
8.1.4
Saddles, skirts, and supports for piping and equipment shall be
insulated to a depth of five (5) times the shell insulation thickness,
with the same type and thickness of insulation as used on the piping
and equipment.
8.2
Piping
8.2.1
Factory fabricated sectional pipe insulation shall be applied in
staggered joint construction. On multiple layer construction, all joints
shall be lapped one-half of each section between layers such that all
joints are staggered. In the top layer, all joints shall be buttered with
sealant and fastened in place with bands using two per section or on a
maximum of 450 mm centers. The insulation is to be liberally covered
with vapour barrier prior to being covered with metal jacketing lapped
a minimum of 50 mm on all seams.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
8.2.2
Jacketing shall be secured with bands, located at each lap joint and
spaced a maximum of 300 mm on center. Vertical jacketing shall be
supported with S clips.
8.2.3
All support lugs or stiffening rings on piping shall be fully insulated.
8.3
Fittings, Flanges and Valves
8.3.1
All fittings are to be insulated with standard factory formed insulation.
All joints shall be buttered and sealed. Insulation shall be secured
with wire loops or bands with not less than four (4) loops or bands per
fitting. Insulation shall be covered with standard factory formed metal
jacketing.
8.3.2
Flanges, valves and unions shall be insulated with standard factory
formed insulation and covered with standard factory formed jacketing.
8.4
Vessels and Equipment
8.4.1
Vessels shells shall be insulated with factory fabricated insulation
curved or cut to fit the vessel contour. The face of the insulation shall
be covered with adhesive and applied while tacky. Joints shall be
buttered with joint sealant. Insulation shall be secured using two (2)
bands per course of insulation. The insulation shall then be liberally
covered with vapour barrier prior to being covered with metal
jacketing lapped 75 mm on all seams and secured with bands located
at lap and spaced on a maximum of 450 mm centers.
8.4.2
In the event multiple layers of insulation are used, they are to be
applied in the same manner as the first layer. Special care shall be
taken so that all joints are staggered between layers.
8.4.3
Vessel heads shall be insulated in the same manner as the shell.
Insulation shall be covered with metal jacketing in a pie shaped or
segmented arrangement.
8.4.4
Corrugated jacketing on vertical vessels shall be installed using S
clip method and lapped a minimum of two (2) corrugations on vertical
seams.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8.4.5
8.4.6
8100-A
For vessels up to and including 900 mm O.D., jacketing shall be
secured using plain bands. For vessels greater than 900 mm O.D.,
banding shall be sealed.
All nozzles and manway covers shall be insulated with the same
thickness of insulation as on the main shell of the vessel. Insulation
and jacketing at manway covers and flanges shall be installed so as to
be removable without damage to the main shell insulation.
8.4.7
Vessel supports shall be insulated along the support to not less than
four (4) times the shell insulation thickness.
8.4.8
Vessel support lugs and stiffening rings shall be fully insulated.
8.4.9
Equipment
8.4.9.1 Pump cases shall be insulated using factory formed or pre-cut
insulation. All joints shall be buttered with joint sealant. Insulation
shall be secured with wire or bands and finished with two (2) coats of
weather barrier with reinforcing fiber between coats.
8.4.9.2 Jacketing shall be in accordance with the requirements for flanges,
valves and unions.
9.0
GUARANTEE
The Contractor shall guarantee the installation to be free from
material defect, misapplication, or poor workmanship for a period of
one (1) year after date of acceptance. Any unsatisfactory work or
defects shall be repaired at Contractors expense and at a time
acceptable to OWNER.
10.0
DRAWINGS
When specific details preclude the use of general insulating practices,
Contractor shall submit drawings complete with full details to OWNER
for approval indicating proposed insulation details for piping, vessels,
and equipment and at support rings, insulation expansion joints,
insulation termination points and flashing, and pipe/equipment
supports.
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MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE I
HOT SERVICE INSULATION
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE I
HOT SERVICE INSULATION
Recommended Thickness (mm)
Pipe or Equipment
Size O.D. (mm) To 125
Operating Temperature Range (C)
126 to 200 201 to 251 251 to 300 301 to 400
48.3 & less
25
25
25
38
50
60.3
25
25
38
50
50
88.9
25
38
38
50
64
114.3
25
38
50
64
75
168.3
25
38
50
64
75
219.1
38
50
64
75
89
273.1
38
64
64
75
89
323.9
38
64
75
75
100
355.6 & greater
38
64
75
75
100
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE II
STEAM SERVICE INSULATION
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE II
STEAM SERVICE INSULATION
Recommended Thickness (mm)
40
Pipe of Equipment
to
Size O.D. (mm) 94
95
to
Operating Temperature Range (C)
150 205 260 315 370 425 480 535
to
to
to
to
to
to
to
to
590
to
149
204
259
314
369
424
479
534 589
649
48.3 & less
25
25
38
51
51
64
64
64
76
76
76
60.3
25
25
38
51
51
64
64
76
76
76
89
88.9
25
25
38
51
51
64
76
76
76
89
89
114.3
25
25
38
51
64
64
76
76
89
89
102
168.3
25
38
51
51
64
76
76
89
89
102
102
219.1
38
38
51
51
64
76
89
89
102 102
114
273.1
38
38
51
64
64
76
89
89
102 102
114
323.9
38
38
51
64
76
76
89
102
102 114
114
355.6 & greater
38
38
51
51
64
76
89
102
102 114
114
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE III
PERSONNEL PROTECTION INSULATION
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE III
PERSONNEL PROTECTION INSULATION
Recommended Thickness (mm)
Pipe or Equipment
Size O.D. (mm)
Operating Temperature Range (C)
To 300
301 to 400
48.3 & less
25
38
60.3
25
50
88.9
25
50
114.3
25
50
168.3
25
50
219.1
38
50
273.1
38
50
323.9
38
50
355.6 & greater
50
50
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE IV
COLD SERVICE INSULATION
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE IV
COLD SERVICE INSULATION
Recommended Thickness
Pipe or Equipment
Size O.D. (mm) 25
50
Cellular Glass Thickness (mm)
64 75 89
100 114 125
38
140
150
To 33.4
48.3
60.3
88.9
114.3
5
7
7
10
10
-12
-7
-7
-1
-1
-32
-34
-21
-15
-12
-54
-54
-37
-29
-23
-79
-73
-57
-46
-40
-107
-98
-79
-65
-57
168.3
219.1
273.1
323.9
355.6
13
13
13
13
16
4
4
4
4
7
-9
-7
-7
-4
-1
-21
-21
-15
-15
-12
-32
-32
-26
-23
-21
406.4
457
508
610
711
16
16
16
16
16
7
7
7
7
7
-1
-1
-1
-1
-1
-12
-9
-9
-9
-9
813
914
1067
1219
1524
16
16
16
16
16
7
7
7
7
7
-1
-1
2
2
2
1829
2438
3048
3658
FLAT
16
16
16
16
16
7
7
7
7
10
2
2
2
2
2
-137
-129
-104
-84
-73
-176
-159
-129
-104
-98
-223
-198
-159
-134
-121
-259
-204
-162
-143
-251
-196
-171
-48
-43
-37
-34
-32
-65
-57
-51
-48
-43
-82
-71
-65
-59
-54
-98
-87
-73
-73
-68
-118
-104
-93
-87
-82
-137
-123
-109
-104
-96
-21
-18
-18
-18
-18
-29
-29
-29
-26
-26
-40
-40
-37
-37
-34
-54
-51
-48
-48
-46
-65
-62
-62
-59
-57
-79
-76
-73
-71
-68
-93
-90
-87
-82
-79
-9
-7
-7
-7
-7
-18
-15
-15
-15
-15
-26
-23
-23
-23
-23
-34
-34
-32
-32
-32
-46
-43
-43
-43
-40
-54
-54
-51
-51
-48
-65
-65
-62
-62
-59
-76
-76
-73
-71
-71
-7
-7
-7
-7
-7
-15
-15
-15
-15
-12
-23
-21
-21
-21
-21
-32
-29
-29
-29
-26
-40
-37
-37
-37
-34
-48
-48
-46
-46
-43
-57
-57
-57
-54
-51
-68
-65
-65
-65
-59
MUGLAD BASIN OIL DEVELOPMENT PROJECT
GENERAL SPECIFICATIONS
INSULATION
8100-A
TABLE IV
COLD SERVICE INSULATION (CONTD)
Notes:
(1) Values in Table are C and are minimum temperatures for use with
thickness and design conditions stated when design temperature falls
between two thickness columns. Use the greater thickness.
(2) Table is based on 32C ambient temperature 80% relative humidity, no
wind and cellular glass (Foamglas) with a thermal conductivity of 250
w/cm C/cm at 10C and 246 w/cm C/cm at 24C.
(3) Insulation thicknesses stated here do not include finishing or weatherproofing materials.
