INSULATION
GENERAL
General
Specifications
Spec. No. 200-80
Rev. No. 1
Rev. Date:2012-03-22
TABLE OF CONTENTS
1.0
GENERAL ............................................................................................................... 2
2.0
INSULATION MATERIALS ...................................................................................... 2
3.0
INSULATION THICKNESS........................................................................................ 5
LIST OF APPENDICES
Appendix No.
200-80A
200-80B
200-80C
Appendix Title
Insulation Application of Hot Insulation
Insulation Application of Cold Insulation
Insulation - Fireproofing
Rev.
1
1
1
Rev. Date
2012-03-22
2012-03-22
2012-03-22
PREAMBLE
This specification covers Insulation. It consists of a main body with general requirements applicable to
all insulation, and several appendices applicable to specific activities. For the intended scope of work,
the designated Owner representative may apply the entire specification or may only apply the main
body and those appendices directly applicable to the work.
200-80 R2
Page 1 of 7
INSULATION
GENERAL
General
Specifications
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
1.0
GENERAL
1.1
Scope
This specification covers insulation material and application requirements for piping,
pressure vessels, storage tanks, heat exchangers, turbines, pumps, etc. operating in hot or
cold services and fireproofing for vessel supports, furnace supports, pipe-racks, etc.
1.2
Insulation shall not be installed until all equipment and piping involved, has been tested for
leakage and made tight. All services which are to be insulated shall be cleaned of all dirt,
grease, etc. and shall be perfectly dry before insulation is applied.
1.3
Apply Insulation on piping and equipment when:
2.0
insulation is necessary for temperature stabilization
conservation of heat or refrigeration will be beneficial to the operation
bare metal temperatures exceed 72C (personnel protection)
freeze protection is a requirement.
INSULATION MATERIALS
In the following specifications, wherever specific materials are mentioned, the intent is to
allow substitution of equivalent materials whenever approved by Owner.
All steel substrates to be insulated shall be primed with under insulation coating per
Owners Specification GS 200-72 Internal Coating of Pipeline and Tubing.
2.1
Piping Insulation
2.1.1
Unless otherwise specified, pre-molded glass fiber insulation, Schuller Micro-Lok, Paroc
1200 or Owner approved equivalent shall be used throughout except that pressure
molded, glass reinforced calcium silicate, Schuller Thermo-12 or equivalent shall be used
under any of the following conditions:
operating temperature exceeds 230C
piping or equipment is subject to mechanical abuse i.e. piping adjacent to highly
serviced equipment, or piping near doorways, ladders, platforms and serviceable
valves or horizontal equipment
where insulating system is for fire protection in which case stainless steel jacketing is
required
where the insulating system is designed to provide long term thermal stability, i.e.
freeze protection, delicate process control, etc.
2.1.2
For operating temperatures in the range -46C to 23C a pre-molded cellular glass
insulation should be used, Pittsburgh Corning Foamglass or equal.
2.2
Vessel Insulation
Same material requirements as pipe; pre-molded or block insulation.
200-80 R2
Page 2 of 7
INSULATION
GENERAL
General
Specifications
2.3
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
Tank Insulation
For ambient temperatures to -40C, tanks shall be insulated with a minimum thickness of
50 mm. Insulation type shall be as indicated on the specific equipment data sheet.
2.4
2.5
Cements and Coatings - Hot Service
Finish Cement - Fibrex Supercoat
Insulating Cement - Fibrex Supercoat
Weatherproofing - Schuller Insulkote
Sealers and Coatings - Cold Service
2.6
Schuller Insulkote
Metal Jackets
All jacketing is to be manufactured using aluminum complying with ASTM B209 Type 3003
with the exception that jacketing for fire protection purposes H2S04 and NaOH services is
to be from Type 304 stainless steel.
Metal jacketing shall be supplied with factory applied moisture barrier, Alloy 3003 H14.
Childers Products, Premetco, and Alcan Thermoclad or Owner approved equivalent shall
be used for jacketing.
2.6.1
2.6.2
2.7
Vessels
Vertical vessels - corrugated aluminum sheets .50 mm thick 32 mm x 6.5 mm
corrugations
Horizontal vessels - smooth aluminum sheets .50 mm thick
Semi-elliptical or Hemispherical Heads - aluminum sheets .51 mm thick, field
fabricated from triangular gores or prefabricated
Other heads, transition pieces or flat surfaces - smooth aluminum sheets .5 mm thick
Pipe on racks - corrugated aluminum as an option to minimize hail damage
Piping
Pipe under NPS 18 - smooth aluminum sheets .4 mm thick
Pipe NPS 18 and larger - smooth aluminum sheets .5 mm thick
Underskid Insulation
Underskid insulation shall be limited to urethane spray foam type in accordance with this
specification. For ambient temperature to -40C insulation thickness shall be a minimum
of 50 mm.
200-80 R2
Page 3 of 7
INSULATION
GENERAL
General
Specifications
2.8
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
Jacketing Installation
Jacketing shall be secured with stainless steel screws on approximately 150 mm (6.0)
centers. The screws shall be used on the longitudinal seams only, with stainless steel
bands spaced at center and at lap, machine stretched and sealed under tension. A bank
shall be placed adjacent to the heads of horizontal tanks and at top of the top sheet on
vertical vessels to secure flashing between head and shell jackets. Vessels larger than
NPS 18, banding shall be sealed using A.J. Gerrard & Co. expand - R - strap or Techalloy
Co. breather spring expansion sections and stainless steel seals.
2.9
Bands - Piping and Vessels
NPS 36 or less - .5 mm x 13 mm ASTM Type 300 series stainless steel
Over NPS 36 - .5 mm x 19 mm ASTM Type 300 series stainless steel
2.10
Miscellaneous Materials
2.10.1
Wire - 16 and 18 ga. ASTM Type 304 stainless steel
2.10.2
Wire Mesh - 25 mm (1.0) hex mesh of No. 20 ga. 3 twist soft ASTM Type 304 stainless
steel.
2.10.3
Screws - No. 7 x 13 mm flat head, self tap, sheet metal screws, ASTM Type 304 stainless
steel
2.10.4
Asphalt Felt - JM 45# Regal roofing or JM 55# roofing felt.
2.10.5
Glass Fabric - Glasfab. open weave
2.10.6
When insulation is required for exchanger flanges, channel heads, etc., it shall be
contained in a rigid two-section removable and replaceable type aluminum housing.
Flexible, removable, reusable insulation covers such as DBR Heat Covers or Owner
approved equivalent may be used.
2.10.7
At all flanges and unions, the insulation shall end a sufficient distance back to facilitate
removal of flange bolts or union collars without damage to the pipe insulation. The
insulation shall be finished off at these points on a 45 bevel and covered with metal
bevels.
2.11
Insulation
2.11.1
Insulation shall not cover gauge glasses, equipment name and data plates, nor be applied
so as to interfere with working parts of instruments or equipment.
2.11.2
The Contractor shall apply insulation and water-proofing in such a manner that shrinkage
is kept to a minimum. Any cracks or openings that occur in the insulation shall be filled
with additional insulation cement by the Contractor. If any cracks develop in the
weatherproofing, the Contractor shall fill in such cracks with weatherproofing material.
200-80 R2
Page 4 of 7
INSULATION
GENERAL
General
Specifications
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
2.11.3
Where weather jackets are penetrated by pipe supports, nipples or other appurtenances,
the jacket shall be cut neatly to ensure a tight fit around the penetration.
2.11.4
All penetrations of metal jackets shall be sealed with flashing.
2.11.5
Horizontal piping elevated on shoes shall have continuous insulation.
2.11.6
Insulation exposed to possible moisture penetration shall be weatherproofed with flashing
compound or caulking.
2.11.7
Insulation on compressor exhaust piping shall include a 25mm (1.0) air space between
pipe and insulation.
2.12
Urethane Spray Foam Insulation
2.12.1
When urethane spray foam insulation is specified as per the data sheet, applicable
surfaces shall be prepared prior to application. To ensure proper adhesion surface
preparation shall be in accordance with Owners Specification GS 200-70 New
Construction Paint Standard.
2.12.2
All urethane spray foam applications shall include fire retardant coating.
3.0
INSULATION THICKNESS
3.1
Hot Insulation
The insulation thickness shall be in accordance with the following Table 1.
Table 1
Hot Insulation
Insulation Thickness (mm) - Piping and Equipment
Normal Operating Temperature C
200-80 R2
Nominal Pipe Size
To
93
To
144
To
204
To
260
To
316
To
371
To
427
Less than 2
2
3
4
6
8
10
12
14
16
Greater than 16
Equipment
25
25
38
38
38
38
38
38
38
38
38
50
25
38
38
38
38
38
38
38
38
38
38
50
38
38
38
50
50
50
50
50
50
50
50
50
38
38
50
50
63
63
63
63
63
63
63
63
50
50
50
50
50
63
63
63
63
63
63
63
50
50
50
63
63
63
75
75
75
75
75
75
50
63
63
75
75
75
75
75
87
87
87
87
Page 5 of 7
INSULATION
GENERAL
General
Specifications
3.2
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
Personnel Protection
The insulation thickness shall be in accordance with Table 2 as follows:
Table 2
Insulation Thickness (mm) for Personnel Protection
Normal Operating Temperature C
Nominal Pipe Size
72 - 250
251 - 350
351 - 450
Less than 2
2
3
4
6
8
10
12
14
16
Greater than 16
25
25
25
25
25
38
38
38
38
38
38
25
25
38
38
38
38
38
38
38
38
38
38
38
50
50
50
50
50
63
63
63
63
Notes:
Insulation for personnel protection is not required where guard rails or screens are
installed for protection. Insulation for personnel protection shall be supplied as follows:
200-80 R2
those portions of horizontal lines and vessel manways with a bottom of pipe elevation
2 m (6.5) or less of an operating area or with a center line of .6 m (20.0) or less
horizontally from an operating platform
those portions of vertical lines and vessel manways less than 2 m (6.5) above an
operating area or having center lines within .6 m (20.0) horizontally of such operating
areas
where short gaps in insulation would exist in conforming to the above, the insulation
shall be continuous
Page 6 of 7
INSULATION
GENERAL
General
Specifications
3.3
Spec. No. 200-80
Rev. No. 1
Rev. Date: 2012-03-22
Cold Insulation
The insulation thickness shall be in accordance with the following Table 3:
Table 3
Cold Insulation - Recommended Thickness (mm)
Steel
Pipe
Size
NPS
1/2
3/4
1
1 1/2
2
3
4
6
8
10
12
14
16
18
20
24
28
32
36
Nominal Insulation Thickness, Millimeters
25
40
50
65
75
90
100
115
130
140
150
165
8
10
10
10
10
10
10
10
-12
-3
-3
-1
-1
-1
-1
8
8
8
8
8
8
8
10
10
10
10
10
-31
-23
-23
-9
-9
-9
-3
-3
-3
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-42
-31
-31
-26
-26
-23
-17
-17
-17
-12
-9
-9
-6
-6
-6
-6
-6
-6
-6
-70
-56
-56
-42
-42
-37
-34
-31
-26
-23
-20
-17
-17
-17
-17
-17
-15
-15
-12
-95
-92
-90
-73
-67
-51
-48
-42
-37
-31
-31
-31
-31
-31
-31
-31
-23
-23
-20
-170
-142
-117
-84
-84
-76
-65
-56
-51
-45
-42
-40
-37
-37
-37
-37
-31
-31
-31
-184
-159
-159
-120
-115
-92
-92
-76
-65
-56
-56
-48
-48
-45
-42
-42
-42
-40
-40
-203
-184
-184
-145
-142
-115
-106
-87
-81
-76
-70
-62
-59
-56
-53
-53
-51
-51
-48
-234
-206
-206
-178
-178
-148
-131
-106
-98
-87
-81
-76
-76
-76
-70
-65
-62
-59
-59
-267
-248
-248
-209
-206
-178
-159
-126
-115
-101
-95
-90
-87
-81
-78
-76
-76
-76
-76
-267
-267
-234
-231
-201
-184
-151
-137
-120
-112
-106
-101
-98
-92
-90
-87
-84
-81
10
10
10
10
10
10
10
10
10
10
10
10
-1
-1
2
5
5
5
5
5
5
5
5
5
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-9
-20
-20
-20
-20
-20
-17
-17
-17
-17
-1
-17
-17
-28
-28
-28
-28
-26
-26
-26
-26
-26
-26
-26
-23
-37
-37
-37
-34
-34
-34
-34
-34
-34
-34
-34
-31
-48
-45
-45
-45
-45
-45
-42
-42
-42
-42
-42
-40
-56
-56
-53
-53
-53
-53
-53
-53
-51
-51
-51
-48
-70
-67
-65
-65
-62
-62
-62
-62
-59
-59
-59
-53
-78
-76
-76
-76
-76
-76
-76
-76
-76
-76
-70
-62
Vessel O.D.
Meters
1.07
1.22
1.37
1.52
1.68
1.83
2.0
2.43
2.74
3.05
3.66
Over 3.66
to Flat
3.4
200-80 R2
Figures in table are process temperatures in degrees Celsius (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.
Page 7 of 7
