jeres-n-001 basic criteria for industrial insulation

JERES-N-001 Basic Criteria for Industrial

Insulation

Revision 3

Responsibility JER Engineering Division

10 February 2009

Jubail Export Refinery Engineering Standard


JERES-N-001 Rev-3 Basic Criteria for Industrial Insulation 10 February 2009

This document is the property of Jubail Export Refinery and no parts of this document shall be reproduced by

any means without prior approval by the Company.

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Revision Tracking

Revision Revision Date Scope of Revision

3 10 February 2009 Revised to update paragraph:, 4.2, 5.2, 5.3, 5.5, 7.1.2, 7.2.3, 7.3, 7.4, 8.1, 8.7.2.1 and Appendix B: Table 3 and Table 4. Adding Sections 5.6, 5.7 and paragraphs 5.5.5, 8.5.5.

2 20 November 2008 Revised to update paragraph: Table of Contents, 5.3, 5.4, 5.5, 7.1.2, 7.3, 7.4, 9.1.1, 9.1.3, Table 1, Table 3 Adding Table 4 for personal insulation thickness

1 10 July 2008 Revised to update paragraph: 3.2, 5.2, 6, 7, 8, 9

0 29 April 2008 Issued for bid package.

04 22 April 2008 Deleted irrelevant referenced std drawings and minor editorial changes

03 31 March 2008 Issued for bid package for review only

02 05 October 2007 Revised to incorporate, materials, thicknesses and cold insulation.

01 27 April 2007 First official JERES-N-001 is issued.

00 5 February 2007 First draft issued is based on Saudi Aramco SAES-N-001 “Basic Criteria, Industrial Insulation” issue date July 30, 2003. Document was modified to incorporate amendments and modifications.





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Table of Contents

Section Contents Page

1 Scope 4

2 Conflicts, Deviations and Clarifications 4

3 References 4

4 Definitions 6

5 General Insulation Selection Criteria 7

6 Thermal Insulation Systems 9

7 Materials 10

8 General Requirements for all Systems 13

9 Additional Requirements 15

10 Specific System Requirements 16

Appendixes

A Table 1 - Extent of Insulation for Hot Insulation Systems 17

Table 2 - Extent of Insulation for Cold Insulation Systems 18

B Table 3 - Insulation Thickness for Heat Conservation (Mineral Wool) 19

Table 4 - Insulation Thickness for Personnel Protection (Mineral Wool) 20

Table 5 - Insulation Thickness for Cold Conservation (Cellular Glass) 21





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1 Scope

1.1 This standard defines the minimum mandatory requirements governing the design and installation of industrial insulation for Company. It provides detailed guidelines on industrial insulation systems for piping and equipment.

1.2 The requirements of this standard are in addition to and supplement the requirements of the Process Industry Practices (PIP) documents referenced in Section 3 of this standard.

1.3 This standard may be attached to purchase orders.

1.4 Oil flowlines and pipelines located outside process plant battery limits are exempt from the requirements of this standard.

2 Conflicts, Deviations and Clarifications

2.1 Any conflicts between this standard and other applicable Company Engineering Standards (JERES), Material Specifications (JERMS), Standard Drawings (JERSD), Engineering Procedures (JEREP), Company Forms or Industry standards, specifications, Codes and forms shall be brought to the attention of Company Representative by the Contractor for resolution.

Until the resolution is officially made by the Company Representative, the most stringent requirement shall govern.

2.2 Where a licensor specification is more stringent than those of this standard, the Licensor’s specific requirement shall apply.

2.3 Where applicable Codes or Standards are not called by this standard or its requirements are not clear, it shall be brought to attention of Company Representative by Contractor for resolution.

2.4 Direct all requests for deviations or clarifications in writing to the Company or its Representative who shall follow internal Company procedure and provide final resolution.

3 References

The selection of material, design and construction of insulation for piping, equipment and facilities covered by this standard shall comply with the latest edition of the





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references listed below as of the CUT-OFF DATE as specified in the Contract unless otherwise noted.

3.1 Company References

Company Engineering Standards

JERES-A-105 Noise Control

JERES-A-112 Meteorological and Seismic Design Data

JERES-B-006 Fireproofing for Plants

JERES-H-001 Coating Selection & Application Requirements for Industrial Plants & Equipments

Company Standard Drawings

JERSD-N-0006 Insulation Details for Cold Piping

JERSD-N-0008 Details, Fireproofing for Column and Vessel Skirts

JERSD-N-0010 Standards Drawing for Horizontal Vessel Insulation

JERSD-N-0011 Standards Drawing for Vertical Vessel Insulation

JERSD-N-0012 Insulation Details for Hot Piping

3.2 Industry Codes and Standards

Process Industry Practices

PIP INEG1000 Insulation Design and Type Codes

PIP INGG1000 Insulation Documents Use Guidelines

PIP INIC1000 Cold Insulation Installation Details

PIP INIH1000 Hot Insulation Installation Details

PIP INSC1000 Requirements for Cold Service Insulation Material

PIP INSC2000 Installation of Cold Service Insulation Systems

PIP INSH1000 Requirements for Hot Service Insulation Material

PIP INSH2000 Installation of Hot Service Insulation System

PIP INSR1000 Installation of Flexible, Removable/Reusable Insulation Covers for Hot Insulation Service

PIP INTG1000 Insulation Inspection Checklist





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American Society for Testing and Materials

ASTM E84 Test Method for Surface Burning Characteristics of Building Materials

ASTM E96 Test Method for Water Vapor Transmission of Materials

ASTM A463 Steel sheet, cold rolled, aluminum-coated, type 1 and type 2

ASTM B209 Aluminium - Alloy sheet and plate

ASTM C552 Standard Specification for Cellular Glass Thermal Insulation

ASTM C547 Mineral fiber preformed pipe insulation

ASTM C592 Mineral fiber blanket insulation and blanket-type pipe insulation (metal-mesh covered) (industrial type)

ASTM C612 Specification for Fiber Block 2 and board for thermal insulation

ASTM C795 Thermal insulation for use in contact with austenitic stainless steel

4 Definitions

4.1 Definitions presented in this Standard and other JER documents have precedence over other definitions. Conflicts between various definitions shall be brought to the attention of Company Representative by the Contractor for resolution.

Company: Jubail Export Refinery.

Company Representative: A designated person from the Company or an assigned third party representative.

Company Inspector: A designated person or an agency responsible for conducting inspection activities on behalf of the Company.

4.2 List of Definitions

Cellular Glass Insulation: Insulation that is produced of glass and composed of small individual cells sealed from each other.

Fibrous Type Insulation: Insulation that is composed of small diameter fibers which finely divide the air space. These fibers may be organic or inorganic.

Polyurethane or Urethane Insulation: Insulation made by the condensation of organic isocyanates with compounds or resins that contain hydroxyl groups.





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Process Plant Battery Limit: Defined limits surrounding a process plant or plants that establish the physical area wherein all equipment and facilities of such a process plants or plants are installed

Vapor Barrier: A material that prevents the passage of moisture into the insulation.

Weatherproofing: A material that protects the insulation from the ravages of weather such as rain, wind, solar radiation, atmospheric contamination and mechanical damage.

Wicking Type Insulation: Insulation, such as calcium silicate and fibrous insulation, which has high tendency to absorb moisture.

5 General Insulation Selection Criteria

5.1 Insulation shall not be installed on pumps, air-cooled equipment, compressors, steam traps, nameplates, expansion joints, rotating joints and other applications where the intended use would be compromised.

5.2 Acoustical insulation shall be provided where required to comply with requirements of JERES-A-105. Acoustic control insulation in piping and equipment can be combined with other types of insulations if necessary.

5.3 Preservation of the Heat

5.3.1 Heat conservation insulation shall be considered if normal operating temperature exceeds 65°C, unless loss of heat is desirable.

5.3.2 Insulation for heat conservation shall be applied on equipment and piping where the calorific losses lead directly or indirectly to a supplementary consumption of fuel gas or fuel oil, and on the ones where the insulation is required for process reason.

5.3.3 The design of heat conservation insulation shall be based on local average ambient climatic conditions (temperature and wind velocity) and economic variables applied to the project so that the calculated insulation thicknesses are the optimum ones.

5.3.4 The optimum insulation thickness heat conservation for pipes and vessels & equipment is provided in tabular format and included in the Appendix-B-Table 3 of this specification.

5.4 Protection against Cold Condition

The insulation shall be applied on the equipments containing or carrying fluids that under some conditions and because of the cold weather can:





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- be frozen (black products)

- crystallize (paraffin- wax)

- freeze (water)

- cause the development of condensation (fuel gas line for example) leading to slug flow which could damage the piping or disrupt the operation of equipment.

It is desired to delay the cooling of the fluids sensitive to the cold.

Generally this protection against cold condition can be linked up to the heat tracing of the equipment and piping.

5.5 Protection of Personnel

5.5.1 Personnel protection insulation shall be used in piping and equipment if normal operating temperature in their surface exceeds 65 °C and if the surface is within an area that is accessible to personnel. Accessible area is defined as an area in which personnel regularly perform duties related to operation and maintenance during plant operation.

5.5.2 Design of personnel protection insulation shall be based on summer dry bulb temperature and the lower wind velocity to reflect a worst case condition for doing the calculations.

5.5.3 Personnel protection shall either be provided by using normal insulation or shields/screen fabricated in a stiff grid material around the concerned equipment or section of piping. Suitable shields or screen shall be primarily used if heat conservation is not required. Wherever they are not practical from a design or installation standpoint, normal insulation installation shall be used.

5.5.4 Personnel protection insulation shall be provided to 7 feet (2,13 meters) above grade or platforms and 3 feet (0.91 meters) horizontally from the periphery of platforms, walkways , or ladders.

5.5.5 The optimum insulation thickness for personal protection is provided in tabular format and included in the Appendix-B-Table 4 of this specification.





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5.6 Protection for Cold Service

5.6.1 The insulation shall be applied on equipment & piping containing or carrying fluids that are generally at lower temperatures than ambient in order to limit heat gain by the process, which should be determined for each process.

5.6.2 Design of insulation for cold conservation service should be based on control of heat gain and limiting surface condensation if the operating temperature is below ambient. The required insulation thickness shall be determined based on the local worst-case ambient conditions and should be sufficient to keep the surface of the jacket material enough the above the ambient dew point to prevent condensation on the jacket material.

5.6.3 Insulation for cold conservation service shall be duly sealed against atmospheric moisture intrusion and subsequent wetting of the insulation.

5.7 Protection for Process Stability

5.7.1 The insulation shall be applied on equipment & piping at any operating temperature when controlled heat loss is required for process purpose. The heat losses shall be calculated on a case-by-case basis and it is likely that the insulation thickness may or may not be the same of those ones specified for heat conservation. A clear example of theses type of cases is for the liquid sulphur rundown line.

5.7.2 Design of process stability insulation shall be based on anticipated extremes in ambient conditions.

5.7.3 All insulation proposals shall be reviewed by Company for approval.

6 Thermal Insulation Systems

6.1 Hot Insulation Systems

6.1.1 Wicking or fibrous type insulation shall not be used beyond flange to pipe welding joint for flanged joints on pipes and equipment handling hydrocarbon fluids and asphalt.

6.1.2 Wicking or fibrous type insulation shall not be used on tanks and vessels handling hydrocarbon liquids with operating temperature above 93°C where spillage or leakage onto the insulation is likely to occur.





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6.1.3 Cellular glass insulation shall be used on flanged joints in piping and equipment handling hydrocarbon fluids. Usage of wicking or fibrous type insulation for these applications is prohibited.

6.1.4 Cellular glass insulation shall be used on tanks and vessels handling asphalt where spillage or leakage onto the insulation is probable. Usage of wicking or fibrous type insulation is prohibited.

6.2 Polyurethane Insulation

Polyurethane foam, foam-in-place or spray applications shall be subject to Company approval. A supplementary specification by the contractor shall be submitted to the Company Representative for review. Installers must have previous commercial experience and must supply references to Company prior to being granted authorization to work.

7 Materials

7.1 Hot Insulation Systems

7.1.1 Insulating Materials:

Mineral Fiber Preformed Pipe Sections (MWPS)

- ASTM C547, type II or type III

- for piping (process, utility, instrument piping …) up to 1 ½” of pipe size

- Minimum required density shall be 100 kg/m3

Mineral Fiber Blanket (MWB)

- ASTM C592, type II

- for piping (e.g. process, utility, instrument piping …), including accessories such as flange, valves, for pipe size equal to or greater than 2”

- for equipment (e.g. columns, drums, exchangers …), storage tanks


Note: for carbon steel piping & equipment the insulation shall have one side stitched with galvanized wire. For stainless steel piping and equipment, stainless steel wire mesh shall be used.

Mineral Fiber Board (as alternative)





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- ASTM C612, type IV

- for equipment, storage tanks


All insulation materials to be applied on stainless steel surfaces shall be in accordance with the ASTM C795 regarding the Cl / (Na + SiO3) contents.

7.1.2 Jacketing Materials

- Aluminium sheet ASTM B209 ALLOY 3003 – H14 (with moisture barrier liner)

- Aluminized steel sheet ASTM A463 type I-40

- Stainless steel sheet ASTM A167 type 304 or 316

Applicable area Jacketing Material

(Note 2)

Nominal thickness inches (mm) Application

0,020” (0,5) NPS ≤ 6"

0,024” (0,6) 6" < NPS ≤ 20" Non-fire hazardous areas (pipe ways) Aluminum

0,032” (0,8)

Piping, equipment

NPS > 20"

0,018” (0,45) NPS ≤ 36" Fire hazardous areas

(process areas)

Aluminized steel or Stainless steel (Note 1). 0,024” (0,6)

Piping, equipment NPS > 36"

Note 1: Stainless steel jacketing is required specifically for the following insulation systems and applications as follows:

- Any insulation system on piping or equipment constructed of low melting point alloy (below 980 °C) and located within a designated fire exposed area.

- Any insulation system on piping, vessel & equipment where the insulation is considered as fireproofing.

- For insulation on austenitic Stainless Steel, Monel, Incoloy or Inconel piping and equipment.

- Insulation systems applied to aboveground critical wiring systems specified to be fireproofed.

- Insulation systems applied to actuators and leads for the fireproofing of motor actuator for critical valves





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Note 2: Unless where otherwise is required, all metal jacketing shall be flat.

7.2 Cold Insulation Systems

7.2.1 Basic Insulating Materials:

Preformed Cellular Glass (ASTM C552). Basic insulation materials shall have the following minimum properties:

- Specific weight : 98 Kg/m3 minimum

- Thermal conductivity : @ -18°C: 0.046 W/mK

- Operative temp. range : -268°C to +427°C

7.2.2 Vapor Barrier and Joints Finish:

Insulation vapor barrier shall be in accordance with Standard drawings JERSD-N-0006 and the requirements of this standard. Refer to JERSD-N-0008 for interfacing fireproofing and insulation at column and vessel skirt.

7.2.3 Jacketing Materials

- Aluminum sheet ASTM B209 ALLOY 3003 – H14 (with moisture barrier liner)

- Aluminized steel sheet ASTM A463 type I-40

- Stainless steel sheet ASTM A167 type 304 or 316.

Applicable area Jacketing Material

(Note 2)

Nominal thickness inches (mm) Application

0,020” (0,5) NPS ≤ 6"

0,024” (0,6) 6" < NPS ≤ 20" Non-fire hazardous areas (pipe ways) Aluminum

0,032” (0,8)

Piping, equipment

NPS > 20"

0,018” (0,45) NPS ≤ 36" Fire hazardous areas (Process areas)

Aluminized steel or Stainless steel (Note 1). 0,024” (0,6)

Piping, equipment NPS > 36"

Note 1: Stainless steel jacketing is required specifically for the following insulation systems and applications as follows:

- Any insulation system on piping or equipment constructed of low melting point alloy (below 980 °C) and located within a designated fire exposed area.





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- Any insulation system on piping, vessel & equipment where the insulation is considered as fireproofing.

- For insulation on austenitic Stainless Steel, Monel, Incoloy or Inconel piping and equipment.

- Insulation systems applied to aboveground critical wiring systems specified to be fireproofed.

- Insulation systems applied to actuators and leads for the fireproofing of motor actuator for critical valves

Note 2: Unless where otherwise is required, all metal jacketing shall be flat.

7.3 Insulation Thickness for Heat Conservation and Personnel Protection

Insulation thickness for heat conservation and personnel protection shall be in accordance with Table 3 and Table 4 respectively on Appendix B. These two (2) tables are applicable not only for piping but also for vessels, heat exchangers and flat surfaces for which, thicknesses listed on the last row of Tables 3 and 4, labelled as “36” or Above” are the ones that shall be used.

7.4 Insulation Thickness for cold conservation

Insulation thickness for cold conservation shall be in accordance with Table 5 Appendix B, which is applicable for both pipes and vessels & equipment.

8 General Requirements for all Systems

8.1 Stainless steel (-196 °C – 200 °C) and Carbon steel in contact with insulation shall be coated according to JERES-H-001.

8.2 Fireproofing of process structure shall be in accordance with JERES-B-006.

8.3 Design ambient conditions shall be in accordance with JERES-A-112.

8.4 Insulation Details

8.4.1 Preformed insulation joints shall be in staggered arrangement. Multiple layer insulation shall be in staggered arrangement at both the longitudinal and circumferential joints. Each layer shall be secured.

8.4.2 Vessels and tanks shall be insulated with block or blanket insulation.





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8.4.3 Removable type insulation shall be used in areas where access for frequent maintenance is necessary. The insulation shall be bonded to the removable cover.

8.4.4 All metallic protrusions through insulation systems shall be caulked with a sealant.

8.5 Insulation Installation

8.5.1 Insulation support rings, pins, clips, studs, and accessories shall be of materials compatible with the components to which they are attached, and if welded, shall be installed by the vessel fabricator prior to post-weld heat treatment.8.5.2 All equipment, vessels, and piping shall have been hydro tested and inspected as required by the relevant specification prior to the installation of insulation.

8.5.3 Nameplates shall not be insulated and shall be attached with extended brackets to give adequate clearance for the full insulation thickness.

8.5.4 The insulation manufacturers’ instructions and recommendations concerning the care of insulation & its vapor barrier shall be followed.

8.5.5 Stainless steel bands shall be used for fastening jacketing material on insulation systems.

8.6 Insulation Materials

8.6.1 All non-metallic materials shall have a flame-spread index of not greater than 25 when tested per ASTM E84.

8.6.2 Insulation containing sodium silicate shall not be used over alloys containing molybdenum, such as 316 stainless steel, Hastelloy-X, Inconel 625, operating at 815°C or hotter.

8.6.3 Insulation material shall be 100% asbestos-free.

8.7 Insulation Accessories

8.7.1 Vapor Barrier

8.7.1.1 Plastic coatings shall be used on insulating cement finishes to prevent the ingress of water on non-fireproofed systems.

8.7.1.2 A vapor barrier mastic with a water vapor transmission rating not exceeding 1 metric perm shall be used to coat insulating cement.





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8.7.1.3 Vapour barrier shall have a water vapor transmission rating less than 1.6 metric perms per ASTM E96 when tested at 23°C. Fabric reinforcement of elastomeric coatings is required. A metal jacket does not qualify as a vapour barrier.

8.7.2 Weatherproofing

8.7.2.1 Jackets for insulation systems that require fireproofing shall be only of stainless steel material.

8.7.2.2 Elastomeric coatings shall be used for weatherproofing on plastic foam and cellular glass when there is no requirement for metal jackets.

8.7.2.3 Corrugated jacketing shall not be used to cover cold insulation systems.

9 Additional Requirements

9.1 Piping Insulation

For the extent of insulation for heat conservation, refer to Table 1 Appendix A.

For the extent of insulation for cold conservation refer to Table 2 Appendix A, based on PIP INSC2000.

9.1.1 Flanges and valves

− Generally flanges and valves shall not be insulated unless it is strictly required for a specific process requirement.

− In case flanges and valves are insulated the following shall apply:

a) The insulation shall be of the removable and reusable type for ease of maintenance and inspection.

b) Allowance must be made for the removal of flange bolts without disturbing the fixed insulation and permanent vapor barrier.

c) Packing glands shall be left exposed.

9.1.2 Flanges shall not be insulated in hydrogen service, or in toxic service such as phenol or hydrogen sulfide.

9.1.3 For hydrogen service or where heat conservation insulation is not required for flanges, a sheet-metal shroud shall be installed over flanges for personnel protection.





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9.1.4 Spectacle blinds shall be left visible and not totally enclosed by the insulation box.

9.2 Vessel and Tank Insulation

9.2.1 Removable insulated covers shall be provided for manways and designed so that their removal shall not disturb the surrounding permanently fixed insulation.

9.2.2 Removable insulation plugs shall be provided to permit on-stream ultrasonic inspection when required by the operating Company Representative. Plugs shall be vapour tight, ultra violet resistant and be such that they can be opened and reclosed without disturbing the adjacent insulation. Contractor shall consider using quick control device from carbone or approved equivalent.

10 Specific System Requirements

10.1 Elastomeric insulation used outdoors shall be resistant to ultra violet exposure or coated according to the insulation manufacturer’s instructions.





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Appendix A: Extent of Insulation - Table 1 and Table 2

Table 1 - Extent of Insulation for Hot Insulation Systems

ITEMS

Heat conservation

Amb - 1200°F (649°C)

Electrical or steam

tracing, steam

jacketing Straight or bent pipe, socketweld or buttwelded pipe fittings. Socketweld or buttwelded valves.

YES YES

Pipe unions NO (4) NO (2) Steam traps, related strainers NO (4) NO (2) Flanged pipes fittings, flanged valves (excluding relief and control valves), flange orifice sets, piping flanges connected to equipment nozzles and flanged special items (i.e. strainers)

NO (6) NO) (6)

Primary piping for instrument connections, sample piping, vent and drain piping NO YES

Expansion or rotation joints, slide valves, etc. NO (4) YES (5) Instruments and associated tubes NO YES Relief valves NO NO Control valves NO (2, 5) YES (5) Tee and inline strainers NO (2, 5) YES (5) Vessel, shell and head surfaces YES (4) YES Vessel handholes NO (2, 5) N/A Vessel manways NO (2, 5) N/A Vessel instrument trim NO YES Shell and tube heat exchangers, excluding flanged joints YES N/A Heat exchangers flanged joints NO (2, 5) N/A Pump casings NO (2, 5) YES (5) Steam turbines YES (3) N/A Compressor (5) N/A Blower, fans (5) N/A Internally insulated items NO (4) N/A (1) Economics of insulating these items will vary dependent on climate, fuel cost, labor and material cost,

and cost of money. (2) Insulate or guard only where required for personal protection (3) Insulation shall be furnished by the equipment supplier (4) Provide removable metal guards or suitable personnel barriers where required for personnel protection (5) Removable/reusable covers should be considered (6) Insulation would be applicable only if there is a specific process requirement and in this case the Note

5 applies as well. Personal Protection shall be provided to 7 feet (2,13 meters) above grade or platforms and 3 feet (0,91 meters) horizontally from the periphery of platforms, walkways, or ladders.





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Table 2 - Extent of Insulation for Cold Insulation Systems

ITEMS Cold Conservation

Straight or bent pipe, socketweld, threaded or buttwelded pipe fittings. Socketweld, threaded or buttwelded valves YES

Pipe unions YES

Flanged pipes fittings, flanged valves, flange orifice sets, piping flanges connected to equipment nozzles and flanged special items (i.e. strainers) YES

Primary piping for instrument connections, sample piping, vent and drain piping YES

Expansion or rotation joints, slide valves, etc. YES

Instrument and associated tubes YES

Relief valves YES

Control valves YES

Tee and inline strainers YES

Vessel, shell and head surfaces YES

Vessel handholes YES

Vessel manways YES

Vessel instrument trim YES

Shell and tube heat exchangers, excluding flanged joints YES

Heat exchangers flanged joints YES

Pump casings NO

Compressor NO


JERES-N-001 Rev. 2A Basic Criteria for Industrial Insulation 16 December

2008



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Appendix B: Insulation Thickness - Table 3, Table 4 and Table 5

Table 3 - Insulation Thickness for Heat Conservation (Mineral Wool) Operating temperature

INS THK, inches (mm)

°C Amb-65 66-93 94-121 122-149 150-177 178-204 205-232 233-260 261-288 289-316 317-343 344-371 372-399 400-427 428-454 455-482 483-510 511-538 539-565 566-593 594-621 622-649

Nominal pipe size,

inches

°F Amb-150 141-200 201-250 251-300 301-350 351-400 401-450 451-500 501-550 551-600 601-650 651-700 701-750 751-800 801-850 851-900 901-950 951-1000 1001-1050 1051-1100 1101-1150 1151-1200

½ 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 1,5 (40) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75)

¾ 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 1,5 (40) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75) 4 (100)

1 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 1,5 (40) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75) 3 (75) 4 (100)

1½ 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3 (75) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100)

2 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100)

3 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100)

4 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150)

6 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2 (50) 2 (50) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150)

8 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150)

10 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150)

12 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150)

14 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150)

16 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 8 (200)

18 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 8 (200)

20 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 8 (200) 8 (200)

24 1,5 (40) 2 (50) 2 (50) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 8 (200) 8 (200) 9 (230)

30 1,5 (40) 2 (50) 2 (50) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 8 (200) 8 (200) 8 (200) 9 (230)

36 1,5 (40) 2 (50) 2 (50) 2,5 (65) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 7 (175) 8 (200) 8 (200) 9 (230) 9 (230)

Above 36 (Flat) 1,5 (40) 2(50) 3 (75) 3 (75) 3 (75) 4 (100) 4 (100) 4(100) 4 (100) 4 (100) 4 (100) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 6 (150) 7 (175) 9 (230) 9 (230) 10 (255) 10 (255)

Note: 1. Thickness 3,5” (90 mm) and greater shall be applied in multi-layers and each layer of insulation thickness shall be as per Vendor standards. 2. Where the thicknesses listed are not commercially available, the next larger commercially available thickness shall be used.



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Table 4 - Insulation Thickness for Personnel Protection (Mineral Wool)

Operating temperature

INS THK, inches (mm)

°C 61-93 94-121 122-149 150-177 178-204 205-232 233-260 261-288 289-316 317-343 344-371 372-399 400-427 428-454 455-482 483-510 511-538 539-565 566-593 594-621 622-649

Nominal pipe size,

inches

°F 141-200 201-250 251-300 301-350 351-400 401-450 451-500 501-550 551-600 601-650 651-700 701-750 751-800 801-850 851-900 901-950 951-1000 1001-1050 1051-1100 1101-1150 1151-1200

½ 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3,5 (90) 3,5 (90) 3,5 (90) 4 (100)

¾ 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3.5 (90) 3,5 (90) 3,5 (90) 3,5 (90) 4 (100) 4,5 (115)

1 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3.5 (90) 3,5 (90) 3,5 (90) 3,5 (90) 4 (100) 4,5 (115) 4,5 (115)

1½ 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3,5 (90) 3,5 (90) 4.5 (115) 4.5 (115) 4,5 (115) 4,5 (115) 5 (125)

2 1 (25) 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 2,5 (65) 3 (75) 3,5 (90) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 4,5 (115) 5 (125) 5,5 (140)

3 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3,5 (90) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 5 (125) 5,5 (140) 6 (150)

4 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 5 (125) 5,5 (140) 6 (150) 6,5 (165)

6 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3 (75) 3,5 (90) 4 (100) 4,5 (115) 4,5 (115) 5 (125) 5,5 (140) 5,5 (140) 6.5 (165) 6,5 (165) 7 (175)

8 1 (25) 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 3 (75) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 5,5 (140) 6 (150) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190)

10 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4,5 (115) 4,5 (115) 5 (125) 5,5 (140) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8 (200)

12 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2 (50) 2,5 (65) 3 (75) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 6 (150) 6.5 (165) 6,5 (165) 6,5 (165) 7,5 (190) 7,5 (190) 8 (200)

14 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 2,5 (65) 3.5 (90) 4 (100) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 6 (150) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8 (200) 8,5 (215)

16 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4,5 (115) 4,5 (115) 5 (125) 6.5 (165) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8 (200) 8,5 (215)

18 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 6.5 (165) 6.5 (165) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8 (200) 8,5 (215)

20 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4,5 (115) 5 (125) 6.5 (165) 6.5 (165) 6,5 (165) 6,5 (165) 7,5 (190) 7,5 (190) 8,5 (215) 9 (230)

24 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 2,5 (65) 3 (75) 3,5 (90) 4 (100) 4.5 (115) 4,5 (115) 6 (150) 6.5 (165) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8 (200) 8,5 (215) 9 (230)

30 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4.5 (115) 5 (125) 6.5 (165) 6.5 (165) 6.5 (165) 7 (175) 7 (175) 8.5 (215) 9 (230) 9 (230) 10 (250)

36 1 (25) 1 (25) 1 (25) 1,5 (40) 1,5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 6 (150) 6.5 (165) 6.5 (165) 6,5 (165) 7 (175) 7,5 (190) 8.5 (215) 9 (230) 10 (250) 10 (250)

Above 36

1 (25) 1 (25) 1.5 (40) 2 (50) 3 (75) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 6.5 (165) 6.5 (165) 6.5 (165) 7 (175) 7 (175) 7.5 (190) 8 (200) 10 (250) 10 (250) 12 (300) 12 (300)

Note: 1. Thickness 3,5” (90 mm) and greater shall be applied in multi-layers and each layer of insulation thickness shall be as per Vendor standards. 2. Where the thicknesses listed are not commercially available, the next larger commercially available thickness shall be used.



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Table 5 - Insulation Thickness for Cold Conservation (Cellular Glass).

Operating Temperature °F

INS THK, inches (mm) Nominal Pipe Size, Inches 90

to 50

49 to 25

24 to 0

-1 to -25

-26 to -50

-51 to -75

-76 to

-100

-101 to

-125

-126 to

-150

-151 to

-175

-176 to

-200

-201 to

-225

-226 to

-250

-251 to

-275

-276 to

-290

½ 1.5 (40) 1.5 (40) 1.5 (40) 2 (50) 2 (50) 2.5 (65) 2.5 (65) 3 (75) 3 (75) 3.5 (90) 3.5 (90) 3.5 (90) 3.5 (90) 4 (100) 4 (100)

¾ 1.5 (40) 1.5 (40) 1.5 (40) 2 (50) 2 (50) 2.5 (65) 2.5 (65) 3 (75) 3 (75) 3.5 (90) 3.5 (90) 4 (100) 4 (100) 4.5 (115) 4.5 (115)

1 1.5 (40) 1.5 (40) 1.5 (40) 2 (50) 2.5 (65) 3 (75) 3 (75) 3.5 (90) 3.5 (90) 4 (100) 4 (100) 4 (100) 4 (100) 4.5 (115) 4.5 (115)

1½ 1.5 (40) 1.5 (40) 2 (50) 2.5 (65) 2.5 (65) 3 (75) 3 (75) 3.5 (90) 3.5 (90) 4 (100) 4 (100) 4.5 (115) 4.5 (115) 5 (125) 5 (125)

2 1.5 (40) 1.5 (40) 2 (50) 2.5 (65) 2.5 (65) 3 (75) 3.5 (90) 4 (100) 4 (100) 4.5 (115) 4.5 (115) 5 (125) 5 (125) 5.5 (140) 5.5 (140)

3 1.5 (40) 1.5 (40) 2 (50) 2.5 (65) 3 (75) 3.5 (90) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 5 (125) 5.5 (140) 5.5 (140) 6 (150) 6 (150)

4 1.5 (40) 1.5 (40) 2 (50) 2.5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 4.5 (115) 5 (125) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 6.5 (165)

6 1.5 (40) 1.5 (40) 2.5 (65) 3 (75) 3.5 (90) 4 (100) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 6.5 (165) 7 (175) 7 (175)

8 1.5 (40) 1.5 (40) 2.5 (65) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7 (175) 7.5 (190) 7.5 (190)

10 1.5 (40) 1.5 (40) 2.5 (65) 3 (75) 3.5 (90) 4 (100) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8 (200)

12 1.5 (40) 1.5 (40) 2.5 (65) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 7.5 (190) 8 (200) 8 (200)

14 1.5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 8.5 (215)

16 1.5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 5 (125) 5.5 (140) 6 (150) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 8.5 (215)

18 1.5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8 (200) 8.5 (215) 9 (230)

20 1.5 (40) 2 (50) 3 (75) 3.5 (90) 4 (100) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 9 (230) 9 (230)

24 1.5 (40) 2 (50) 3 (75) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 9 (230) 9 (230)

30 1.5 (40) 2 (50) 3 (75) 4 (100) 4.5 (115) 5 (125) 5.5 (140) 6 (150) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 9 (230) 9.5 (240) 9.5 (240)

36 1.5 (40) 2 (50) 3 (75) 4 (100) 4.5 (115) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 9 (230) 9.5 (240) 9.5 (240)

48 to Flat 1.5 (40) 2 (50) 3 (75) 4 (100) 4.5 (115) 5.5 (140) 6 (150) 6.5 (165) 7 (175) 7.5 (190) 8 (200) 8.5 (215) 9 (230) 9.5 (240) 9.5 (240)

Note: Multi-layer insulation is required for cellular glass thicknesses greater than 3 inches (76.2 mm) in accordance with the following table:



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Total Thickness Inner Layer Thickness Outer Layer(s) Thickness

inches mm inches mm inches mm

3-1/2" 88.9 1-1/2" 38.1 2" 50.8

4" 101.6 2" 50.8 2" 50.8

4-1/2" 114.3 2" 50.8 2-1/2" 63.5

5" 127 2-1/2" 63.5 2-1/2" 63.5

5-1/2" 139.7 2-1/2" 63.5 3" 76.2

6" 152.4 3" 76.2 3" 76.2

6-1/2" 165.1 3" 76.2 3-1/2" 88.9

7" 177.8 2" 50.8 2/1/2 plus 2-1/2" 63.5 plus 63.5

7-1/2" 190.5 2-1/2" 63.5 2-1/2 plus 2-1/2 76.2 plus 76.2

8" 203.2 2-1/2" 63.5 2-1/2 plus 3" 63.5 plus 76.2

8-1/2" 215.9 2-1/2" 63.5 3" plus 3" 76.2 plus 76.2

9" 228.6 3" 76.2 3" plus 3" 76.2 plus 76.2

9-1/2" 241.3 3" 76.2 3" plus 3-1/2" 76.2 plus 88.9