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Piping Class Specification Application Guide

Table of Contents

Section Title Page
Purpose 2
Scope 2
Related Documents 2
Selection of Pipe Class Specifications 3
Piping Class Specification Data 4
Calculations 6
Change Log 45
Process Cold Box 7
Process Yard Cryogenic 9
Process Yard Noncryogenic 11
Gaseous Oxygen (GOX) 12
Defrost/Disposal, Relief Device Discharge, Seal Gas, and Cold Box Purge Lines 13
Electronics Electropolished (EP) and Non-Electropolished Systems 14
Utilities 17
Global Piping Class Specification Summary 20
Global Gasket Material Purchase Specifications 41

1. PURPOSE

1.1 This applications guide provides a single-source document that shall be used in selecting the appropriate piping class specification for specific fluid services.

2. scope

2.1 This engineering standard applies to all fluid services and piping class specifications listed in Tables 1, 2, 3, 4, 5, 6, and 7.

2.2 This document shall be used for the selection of piping class specifications for all plants designed globally by Air Products except where project-specific stipulations or design conditions (for example, client or customer specifications, government regulations, and fluid service applications outside the scope of the B31.3 design code) require the use of special project-specific piping class specifications.

2.3 The following Application tables contain specific fluid service applications and recommended piping class specifications for most of the fluid services typically found in air and gas separation plants designed by Air Products. However, there are a number of special applications that the tables do not fully address. The correct selection of piping class specifications for these special applications requires piping expertise, and guidance should be sought from the Mechanical Systems Engineering specialist in the appropriate ET. Application Table 1 – Process Cold Box Application Table 2 – Process Yard Cryogenic Application Table 3 – Process Yard Noncryogenic Application Table 4 – Gaseous Oxygen (GOX) Application Table 5 – Defrost/Disposal, Relief Device Discharge, Seal Gas, and Cold Box Purge Application Table 6 – Electronics Electropolished and Non-electropolished Systems Application Table 7 – Utilities

2.4 Development of special project-specific Piping Class Specifications may result in an overall cost savings for large diameter piping systems where the maximum system design pressure is well below the maximum design pressure listed in the standard piping class specification selected from the application tables.

3. related documents

3.1 Air Products Engineering Documents 2S301 Use of Aluminium in Oxygen Service 3EQ10601 DCAC/WN2 Tower Materials 3EQ68001 Selecting Paint Systems and Identifying Paint Codes, Including Requirements for Under Thermal Insulation 3PI00001 Numbering System for Piping Standards, Guidelines, and Specifications 3PI20005 Process & Instrumentation Piping for Flat Bottom Cryogenic LIN/LOX/LAR Storage Tanks 3PI50001 HYCO Plant Piping 3PI60001 Design Criteria for Oxygen Piping Systems 3PI75001 Pressure Rating Tables – Aluminum Pipe 3PI75002 Pressure Rating Tables – Carbon Steel Pipe 3PI75003 Pressure Rating Tables – Stainless Steel Pipe 3PI75004 Pressure Rating Tables – Monel Pipe 3PI75005 Pressure Rating Tables – Copper Tube 4WPI-60005 Gaseous Oxygen Piping Design Details 4WPI-EW85001 Manual Valve Selection Guide MSE04031 Oxidizer Piping Review Work Practice

3.2 American Petroleum Institute (API) API RP 941 Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants

3.3 ASME International ASME B16.5 Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch ASME B31.3 Process Piping

3.4 China National Institute of Standardization (CNIS) GB 16912 Safety Technical Regulation for Oxygen and Relative Gases GB 50316 Chinese Design Code for Industrial Metallic Piping

3.5 EU – EU/EC – European Union/Commission Legislative Documents 97/23/EC European Pressure Equipment Directive (PED)

3.6 NACE International Corrosion Data Survey – Metals Section Corrosion Data Survey – Nonmetals Section NACE MR 0175 Petroleum and natural gas industries Materials for use in H2S-containing Environments in oil and gas production Part 1: General principles for selection of cracking-resistant materials – Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons – Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

4. SELECTION OF PIPE CLASS SPECIFICATIONS

4.1 Piping class specifications are named and numbered in accordance with 3PI00001 Section 4.6.5.

4.2 The latest revision of piping class specifications shall be used when selecting materials. However, when an existing design is to be reused, and the piping class specifications used in the existing design are no longer current, Mechanical Systems Engineering shall be consulted as to the acceptability of the outdated specifications.

4.3 Piping class specifications shall be selected for the intended service to suit the following mandatory conditions: Application Fluid Service Pipe Size Range Design Conditions as defined on the flowsheets by design circuit. Considerations shall be given to start-up, shutdown, defrost, and regeneration conditions, and other similar conditions, in defining the worst case for design pressures and temperatures. Corrosion Allowance Internal corrosion of the piping system caused by the fluid (see paragraph 5.3 for the corrosion allowance of standard specifications). Refer to the Corrosion Data Survey – Metals Section and Corrosion Data Survey – Nonmetals Section published by NACE. External corrosion of the piping system caused by atmospheric conditions. Refer to 3EQ68001 for the protection of piping materials under insulation. Availability of Materials—The location of suppliers and fabrication facilities and the availability of materials shall be considered.

4.4 Piping class specification selection shall be made from Tables 1 through 7 of this standard using the lowest suitable pressure rating. The nominal and maximum design pressures listed in Tables 1 through 7 are in bar g with the equivalent pressure in psig and are based on ambient temperatures. For allowable design pressures ratings at elevated temperatures, Table 8 should be consulted. Always verify that the design max/min pressure and temperature ratings are within the service pressure/temperature limits shown in Table 8.

4.5 Cold box piping is typically aluminum because it can be welded directly to aluminum equipment. Aluminum/stainless steel transition joints (TJs) are used to transition from aluminum equipment and piping to stainless steel equipment and piping components. Stainless steel piping should be used directly between stainless steel equipment and components or where required by the service application. Valve and pump chest/box piping shall be stainless steel.

4.6 Piping in gaseous oxygen (GOX) service shall comply with the system design and in-line component material selection requirements of 3PI60001 and 4WPI-60005. All GOX piping system designs shall be reviewed in accordance with Mechanical System’s QMS work instruction MSE04031.

4.7 Piping branch connections in pulsating service (for example, reciprocating compressors) shall be wrought or forged fittings. Unreinforced branch connections are strictly prohibited. Flanges in pulsating service shall be weld neck (WN) or socket weld (SW ≤ 1 ½”). Slip-on (SO) flanges are strictly prohibited.

4.8 3PI50001 defines general requirements and Air Products’ specific requirements for safe and reliable installation and operation of piping systems in hydrogen, carbon monoxide, and syngas production plants.

4.8.1 Additionally, hydrogen damage or high temperature hydrogen attack (HTHA) in plants is caused when hydrogen from the process stream seeps into carbon and low alloy steels at high temperatures. Hydrogen reacts with the carbides in the steel, decarburizing the steel and forming methane gas bubbles at the grain boundaries with no loss of thickness. The methane gas bubbles grow with time and result in micro-cracking. The combination of micro-cracking and decarburization reduces the fracture toughness of steels and leads to major failures. HTHA is triggered in components operating at high temperatures and high hydrogen partial pressure. The Nelson curves, found in API Recommended Practice 941, provide information about safe and unsafe operating environments for components operating in hydrogen environments.

4.9 Table 8 consists of a summary of all Air Products global piping class specifications and lists service, size range, pressure/temperature limits, material, flange ratings, gasket materials, corrosion allowance, and service.

5. PIPING CLASS SPECIFICATION DATA

5.1 Design Code: Air Products uses ASME B31.3 as the piping design code for fluid service applications typically found in petroleum refineries, chemical, semiconductor, and cryogenic plants, and related processing plants and terminals. Additional or supplemental requirements may be added for plants within Europe by the European Pressure Equipment Directive 97/23/EC (PED) and for plants within China by the Chinese Design Code for Industrial Metallic Piping (GB-50316). Other sections of the ASME Piping Code may be required for fluid service applications outside the scope of the B31.3 section and, in those cases; special project-specific piping class specifications might be required.

5.2 Materials: Piping class specifications typically contain three materials sections. Each section is comprehensive in scope and is meant to be used in its entirety. Combining portions of the individual sections is prohibited.Section A contains material commonly used in countries outside of the European Community and the People’s Republic of China. Section E contains material required to meet the requirements of the European Pressure Equipment Directive (PED) 97/23/EC for plants to be commissioned in the European Community and those countries that have adopted the PED. Section C contains material to be used only in the People’s Republic of China (PRC). Some clients and countries might require the use of other piping design codes and, in those cases, special project-specific piping class specifications might be required.

5.3 Corrosion Allowance: An allowance for corrosion is not included in the wall thickness values for aluminium, copper, monel, or stainless steel piping materials. Carbon and low alloy steel piping materials incorporate a 1.3 mm corrosion allowance in the listed wall thickness values where appropriate for the fluid service. Any other corrosion or mechanical allowances required by a project shall require revised wall thickness calculations and special project-specific piping class specifications.

5.4 Maximum Allowable Oxygen Purity: Aluminum piping class specifications include the maximum allowable oxygen purity based on the pressure/purity curve limitations contained in 2S301.

5.5 Service Limitations: Pressure/temperature service limitations are shown on the front page of each piping class specification. Any interpolation between listed pressure/temperature values should be based on the values listed in the applicable referenced code, standard, or specification. For example:  For flanges use pressure/temperature rating tables in ASME B16.5 to calculate, by linear interpolation, the intermediate metric values of bar g or °C. Intermediate US customary values of psig or °F may be similarly calculated by using the tables in Annex F.

5.5.1 The minimum design temperature of carbon steel pipe class specifications (-20°C/-4°F) is limited by the materials listed in Section C – “Chinese Materials”. Piping systems constructed using the carbon steel materials listed in Section A – “Non-PED Materials” or Section E – “PED Materials” may be used at a minimum design temperature of -29°C/-20°F.

5.6 Reducers: Size ranges shown for reducers are the larger ends only and do not include nonpreferred sizes (1¼, 2½, 3½, 5, 22, 26, 28, 32, 34, 38, 40, 44, and 46 NPS). Nonpreferred sizes are only allowed to step up to the next preferred nominal pipe size.

5.7 Flanges: Only flanges of the lowest applicable flange pressure rating are included in the piping class specification. Equivalent flanges of higher pressure rating are acceptable and should be included in the PDS version of the piping class specification.

5.8 Manual Valves: Manual valves shall be selected from the appropriate table in 4WPI-EW85001 based on the applicable piping class specification.

5.9 Threaded Pipe: Threaded pipe shall have a minimum wall thickness of schedule 80 to maintain mechanical integrity.

6. calculations

6.1 Pressure rating tables for various piping materials may be found in the following Engineering Standards: Piping Material Engineering Standard Aluminum 3PI75001 Carbon Steel 3PI75002 Stainless Steel 3PI75003 Monel 3PI75004 Copper 3PI75005

Application Table 1: Process Cold Box
Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature (See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)
Nominal

Pressure

4 bar g 10 bar g 15 bar g 20 bar 35 bar g 50 bar g 60 bar g 70 bar g 100 bar g
Design Pressure 4.0 bar g (58 psig) 10.3 bar g (150 psig) 13.5 bar g (195 psig) 18.9 bar g (275 psig) 34.5 bar gc 500 psig) 49.6 bar g (720 psig) 62.0 bar g (900 psig) 70.0 bar g (1015 psig) 99.3 bar g (1440 psig)
Fluid Service Pipe Class Specification
Air WAC004 WAC010 WAC015 WSC020 WAC035 WSC035 WAC050 (2) WSC050 (2) WAC060 WAC070 (3) WSC100
Argon WAC004 WAC010 WAC015 WSC020 WAC035 WSC035 WAC050 (2) WSC050 (2) WAC060 WAC070 (3) WSC100
Carbon Dioxide WAH004 WAH010 WAH015 WAH020 (1) WSH020 WAH035 WSH035 WAH050 (2) WSH050 (2) WAH060 WAH070 (3) WSH100
Carbon Monoxide WAH004 WAH010 WAH015 WAH020 (1) WSH020 WAH035 WSH035 WAH050 (2) WSH050 (2) WAH060 WAC070 (3) WSH100
Helium (4) Cold Gas > -198°C WAC004 WAC010 WAC015 WSC020 WAC035 WSC035 WAC050 (2) WSC050 (2) WAC060 WAC070 (3) WSC100
Fuel Gas/
Hydro-
carbons
WAH004 WAH010 WAH015 WAH020 (1)WSH020 WAH035 WSH035 WAH050 (2) WSH050 (2) WAH060 WAH070 (3) WSH100
Hydrogen (4) Cold Gas > -198°C WAH004 WAH010 WAH015 WAH020 (1) WSH020 WAH035 WSH035 WAH050 (2) WSH050 (2) WAH060 WAH070 (3) WSH100
Nitrogen WAC004 WAC010 WAC015 WSC020 WAC035 WSC035 WAC050 (2) WSC050 (2) WAC060 WAC070 (3) WSC100
Oxygen (see 4.6) WAC004 WAC010 WAC015 WSC020 WAC035 WSC035 WAC050 (2) WSC050 (2) WAC060 WAC070 (3) WSC100
Syngas WAH004 WAH010 WAH015 WAH020 (1) WSH020 WAH035 WSH035 WAH050 (2) WSH050 (2) WAH060 WAH070 (3) WSH100

Application Notes on next page.

Application Table 1 Notes: (1)  Flanges are prohibited in specification WAH020. (2)  Specifications WSC050 and WSH050 contain Class 300 flanges while WAC050 and WAH050 contain Class 600 flanges because of differences in stainless steel and aluminum flange pressure ratings. (3)  Specifications WAC070 and WAH070 do not contain flanges because of Aluminum flange pressure limitations. (4)  Helium or hydrogen cold gas ≤ -198°C (-325°F) require special pipe class specifications to address the bolting material requirements for the lower temperature.

Process Yard Cryogenic

Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

Application Table 2: Process Yard Cryogenic
Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

Nominal Pressure 20 bar g 30 bar g 35 bar g 50 bar g 100 bar g 150 bar g 260 bar g
Design Pressure 18.9 bar g (275 psig) 27.6 bar g (400 psig) 34.5 bar g (500 psig) 49.6 bar g

(720 psig)

99.3 bar g (1440 psig) 148.9 bar g (2160 psig) 248.2 bar g (3600 psig)
Fluid Service Pipe Class Specification
Air Cold Gas WSC020  

 

WSC035 WSC050 WSC100 WSC150 WSC260
Argon Liquid/Cold Gas WSC020   WSC035 WSC050 WSC100 WSC150 WSC260
Storage tank liquid withdrawal line (1) WSC050A
Trailer unloading lines (2) WSC035
Customer Stations AKC020 AKC030
CLAR Pumps WSC020D WSC035D WSC050D
Carbon Monoxide WSH020 WSH035 WSH050 WSH100 WSH150 WSH260
HeliumCold Gas > -198°C (-325 °F)(3) WSC020  

 

WSC035 WSC050 WSC100 WSC150 WSC260
   Liquid/Cold Gas ≤ -198°C ( -325 °F) Vacuum Jacketed
Fuel Gas/Hydrocarbons WSH020 WSH035 WSH050 WSH100 WSH150 WSH260
Hydrogen Cold Gas > -198°C (-325°F) (3) WSH020  

 

WSH035 SH050 WSH100 WSH150 WSH260
Customer Stations WSC020A WSC035A
Nitrogen Liquid/Cold Gas WSC020  

 

WSC035 WSC050 WSC100 WSC150 WSC260
Storage tank liquid withdrawal line (1) WSC050A
Trailer unloading lines (2) WSC035
    Customer Stations AKC020 AKC030

           

Application Table 2: Process Yard Cryogenic (continued)
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

20 bar g 30 bar g 35 bar g 50 bar g 100 bar g 150 bar g 260 bar g
  Design

Pressure

18.9 bar g

(275 psig)

27.6 bar g

(400 psig)

34.5 bar g

(500 psig)

49.6 bar g

(720 psig)

99.3 bar g

(1440 psig)

148.9 bar g

(2160 psig)

248.2 bar g

(3600 psig)

Fluid

Service

Pipe Class Specification
  Oxygen

Liquid/Cold Gas

 

WSC020

 

 

 

WSC035

 

WSC050

 

WSC100

 

WSC150

 

WSC260

    Storage tank liquid withdrawal line (1) WSC050A
    Trailer unloading lines (2) WSC035
    Customer Stations AKC020 AKC030
    LOX Pumps WSC020D WSC035D WSC050D

Application Table 2 Notes:

 

(1) Applies to low pressure flat bottom cryogenic LIN/LOX/LAR storage tanks per Engineering Standard 3PI20005.

(2) Trailer unloading lines are to be designed to a minimum of 400 psig.

(3) Helium or hydrogen cold gas ≤ -198°C (-325°F) require special pipe class specifications to address the bolting material requirements for the lower temperatures.

        

Piping Class Specification Application Guide

   

Application Table 3:  Process Yard Noncryogenic
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

2 bar g 10 bar g 20 bar g 35 bar g 36 bar g 50 bar g 100 bar g 150 bar g 260 bar g
  Design

Pressure

2.0 bar g

(29 psig)

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.5 bar g

(500 psig)

37.9 bar g

(550 psig)

51.0 bar g

(740 psig)

102 bar g

(1480 psig)

153 bar g

(2220 psig)

254.5 bar g

(3690 psig)

Fluid

Service

Pipe Class Specification
  Air – Process

  Smooth Flow

 

WCG002

 

WCG010

 

WCG020

 

WCG035

 

 

 

WCG050

 

WCG100

 

WCG150

 

WCG260

     Pulsating Flow

TSA & Recip.

Compressors

 

WCP010

 

WCP020

WCP020A

 

WCH050

 

WCH100

 

WCH150

 

WCH260

           PSA Service WCP036

WCP036A

  Argon

 

 

WCG002 WCG010 WCG020 WCG035 WCG050 WCG100 WCG150 WCG260
  Carbon Dioxide

 

WCH010 WCH020 WCH035 WCH050 WCH100 WCH150 WCH260
  Carbon Monoxide

 

WCH010 WCH020 WCH035 WCH050 WCH100 WCH150 WCH260
  Helium

 

WCG002

 

WCG010 WCG020 WCG035 WCG050 WCG100 WCG150 WCG260
  Hydrogen

   Smooth Flow

 

WCH010

 

WCH020

 

WCH035

 

WCH050

 

WCH100

 

WCH150

 

WCH260

     PSA Service

 

WCP036

WCP036A

  Hydrocarbons

 

WCH010 WCH020 WCH035 WCH050 WCH100 WCH150 WCH260
  Hydrogen Sulfide (H2S) WCN010 WCN020 WCN035 WCN50 WCN100 WCN150 WCN260
  Nitrogen – Process

            Smooth Flow

 

WCG002

 

WCG010

 

WCG020

 

WCG035

 

 

 

WCG050

 

WCG100

 

WCG150

 

WCG260

              Pulsating Flow

                Reciprocating

            Compressors

 

WCP010

 

WCP020

WCP020A

 

WCH050

 

WCH100

 

WCH150

 

WCH260

           

Piping Class Specification Application Guide

Application Table 4:  Gaseous Oxygen (GOX)
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

 
Nominal Pressure 
10 bar g 20 bar g 35 bar g 40 bar g 50 bar g 85 bar g 100 bar g 125 bar g
  Carbon Steel

Design Pressure

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.4 bar g

(500 psig)

  51 bar g

(740 psig)

  102 bar g

(1480 psig)

 
  Stainless Steel and Monel

Design Pressure

10.3 bar g

(150 psig)

18.9 bar g

(275 psig)

34.4 bar g

(500 psig)

41.3 bar g

(600 psig)

49.6 bar g

(720 psig)

82.7 bar g

(1200 psig)

99.3 bar g

(1440 psig)

124.1 bar g

(1800 psig)

Fluid Service

Pipe Class Specification
  Gaseous Oxygen (Notes 1 & 2)      
  Oxygen Purity > 80%

Velocities below curve limits in Figure(s) 1A or 1B of 3PI60001

CS Piping to 149°C (300°F)

 

 

 

 

 

 

 

WCX020

 

 

 

WCX035(3)

 

 

 

 

 

 

 

WCX050 (3)

 

 

 

 

 

 

 

WCX100 (3)

 

 

 

WMX125

    SS Piping to 204°C (400°F) WSX010 WSX020 WSX035 WSX050 WSX100 WMX125
  Oxygen Purity > 80%

Velocities above curve limits (5) in Figure(s) 1A or 1B of 3PI60001

SS Piping to 204°C (400°F)

 

 

 

WSX010

 

 

 

WSX020A

 

 

 

WSX027A(4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    Monel Piping to 204°C 400°F) WMX020 WMX040 WMX050 WMX085   WMX125
  Oxygen Purity from 40% to 80%

Pressure below curve limits in Appendix E, Fig. 3 of 3PI60001

CS Piping to 204°C (400°F)

 

 

 

WCX020

 

 

 

WCX035(3)

     
  Cyclic Service – TSA Switching

Oxygen Purity ≤ 80%

Pressure ≤ 10 psig

CS Piping to 204°C (400°F)

 

 

 

WCP010

 

 

 

WCP020

     
  Cyclic Service – PSA Switching

CS Piping to 204°C (400°F)

 

WCP010

 

WCP020

     

Application Table 4 Notes:

 

(1)  Refer to 3PI60001 for specific requirements that are unique to the design of gaseous oxygen piping systems.

(2)  Refer to 4WPI-60005 for specific piping configurations required for gaseous oxygen piping.

(3)  Chinese Standard GB16912 prohibits the use of carbon steel piping in China at operating gas pressures > 30 bar g (435 psig).

(4)  Pipe specification is limited to 25.8 bar g (375 psig) for use without velocity limits.

(5)  Chinese Technical Regulation GB 16912 does not recognize “exemption pressures” and the Mechanical Systems engineer is responsible for ensuring that the gaseous oxygen velocity is within the allowable limits for the use of stainless steel in smooth flow and impingement flow applications.”

       

Piping Class Specification Application Guide

   

Application Table 5:  Defrost/Disposal, Relief Device Discharge, Seal Gas, and Cold Box Purge Lines
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

10 bar g 20 bar g 35 bar g 50 bar g 100 bar g 150 bar g
  Carbon Steel

Design Pressure

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.5 bar g

(500 psig)

51.0 bar g

(740 psig)

102.0 bar g

(1480 psig)

153.0 bar g

(2220 psig)

Stainless Steel

Design Pressure

10.3 bar g

(150 psig)

18.9 bar g

(275 psig)

34.5 bar g

(500 psig)

49.6 bar g

(720 psig)

99.3 bar g

(1440 psig)

148.9 bar g

(2160 psig)

Fluid

Service

Pipe Class Specification
  Defrost/Disposal Lines

Non-Hydrocarbon

 

 

 

WSC020

 

WSC035

 

WSC050

 

WSC100

 

WSC150

        Hydrocarbon

 

WSH020 WSH035 WSH050 WSH100 WSH150
  Relief Device Discharge Lines

Below –29°C (–20°F)

Non-Hydrocarbon

 

 

 

 

 

WSC020

 

 

WSC035

 

 

WSC050

 

 

WSC100

 

 

WSC150

        Hydrocarbon

 

WSH020 WSH035 WSH050 WSH100 WSH150
  Relief Device Discharge Lines

Above –29°C (–20°F)

Non-Hydrocarbon

 

 

WCG010

 

 

WCG020

 

 

WCG035

 

 

WCG050

 

 

WCG100

 

 

WCG150

        Hydrocarbon

 

WCH010 WCH020 WCH035 WCH050 WCH100 WCH150
  Seal Gas Lines Downstream of Filter

Oxygen

 

WSX010

 

WSX020

 

WSX035

 

WSX050

 

WSX100

 

 

        Other

 

WSC020 WSC035 WSC050 WSC100
  Cold Box Purge Lines

 

WCG010 WCG020 WCG035

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

           

Application Table 6:  Electronics Electropolished (EP) and Non-electropolished Systems
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

5 to 10 bar g 20 bar g 50 bar g 100 bar g 205 bar g 240 bar g
  Design

Pressure

  19.0 bar g

(275 psig)

49.6 bar g

 (720 psig)

99.3 bar g

(1440 psig)

205 bar g

(3000 psig)

240 bar g

(3500 psig)

Polyvinylidene Fluoride (PVDF)

5.1 bar g

(75 psig)

Fluid

Service

Pipe Class Specification
  Ammonia

 

wst020c

WSE020F

wst050 wst110 wst205  
  Ammonia Service Water

 

WSE020F        
  Argon – Ultra High Purity (UHP)
            Electropolished (EP) System wst020A

wst020f

wst050a
            Non-Electropolished System wst020b

wst020g

 

  Arsine

 

wst020c wst050 wst110 wst205
  Chlorine

 

WPE010C
  Helium

 

wst020 wst050b
  Helium – Ultra High Purity (UHP)
            Electropolished (EP) System wst020A

wst020f

wst050a
            Non-Electropolished System wst020b

wst020g

 

           

Application Table 6:  Electronics Electropolished (EP) and Non-electropolished Systems (continued)
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

5 to 10 bar g 20 bar g 50 bar g 100 bar g 205 bar g 240 bar g
  Design

Pressure

  19.0 bar g

(275 psig)

49.6 bar g

 (720 psig)

99.3 bar g

(1440 psig)

205 bar g

(3000 psig)

240 bar g

(3500 psig)

Polyvinylidene Fluoride (PVDF)

5.1 bar g

(75 psig)

Fluid

Service

Pipe Class Specification
  Hydrogen – Ultra High Purity (UHP)
            Electropolished (EP) System wst020A

wst020f

wst050a
            Non-Electropolished System wst020b

wst020g

 

  Nitrogen
            Instrument wsi020        
            Purge

 

wst020c        
  Nitrogen Trifluoride

 

wst020c

WSE020D

wst050 wst110 wst205
  Nitrogen – Ultra High Purity (UHP)
            Electropolished (EP) System wst020A

wst020f

wst050a
            Non-Electropolished System wst020b

wst020g

 

  Oxygen – Ultra High Purity (UHP)
            Electropolished (EP) System wst020A

wst020f

wst050a
            Non-Electropolished System wst020b

wst020g

 

           

Application Table 6:  Electronics Electropolished (EP) and Non-electropolished Systems (continued)
  Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

  Nominal

Pressure

5 to 10 bar g 20 bar g 50 bar g 100 bar g 205 bar g 240 bar g
  Design

Pressure

  19.0 bar g

(275 psig)

49.6 bar g

(720 psig)

99.3 bar g

(1440 psig)

205 bar g

(3000 psig)

240 bar g

(3500 psig)

Polyvinylidene Fluoride (PVDF)

5.1 bar g

(75 psig)

Fluid

Service

Pipe Class Specification
  Phosphine

 

wst020c wst050 wst110 wst205  
  Silicon Tetrafluoride (SiF4)

 

wst020d

wst020e

 

       
  Tungsten Hexafluoride (WF6)

 

      wne240
  Water

DI System

 

 

WSE020F

     

 

 

 

 

 

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Application Table 7:  Utilities
Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

Nominal

Pressure

2 to 7 bar g 10 bar g 10 bar g 20 bar g 35 bar g 50 bar g 100 bar g
Carbon Steel

Design Pressure

2 bar g

(29 psig)

10.0 bar g

(145 psig)

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.5 bar g

(500 psig)

51.0 bar g

(740 psig)

102.0 bar g

(1480 psig)

Stainless Steel

Design Pressure

  10.0 bar g

(145 psig)

  18.9 bar g

(275 psig)

     
Chlorinated Polyvinyl Chloride (CPVC) 5.1 bar g

(75 psig)

           
High Density Polyethylene (HDPE) 6.9 bar g

(100 psig)

  10.3 bar g

(150 psig)

       

Fluid

Service

Pipe Class Specification
Air

Instrument (aboveground)

 

WCG002

 

WCG010

 

WCG020

 

WCG035

 

WCG050

 

WCG100

    Utility

 

WCG002 WCG010 WCG020 WCG035 WCG050 WCG100
Boiler Feed Water

 

WCP010 WCP020 WCU050
Fuel Oil

 

WCH010

 

WCH020 WCH035 WCH050 WCH100
Glycol

Aboveground

 

WCG002

 

WCG010

 

WCG020

 

WCG035

 

WCG050

 

WCG100

Lubricating Oil

Supply

 

WSL010

 

 

 

 

 

 

 

 

 

 

    Return

 

WCG010
Nitrogen

Instrument (aboveground)

 

WCG002

 

WCG010

 

WCG020

 

WCG035

 

WCG050

 

WCG100

    Purge

 

WCG002 WCG010 WCG020 WCG035 WCG050 WCG100
Steam

 

WCP010 WCP020 WCU050
Steam Condensate

 

WCP010 WCP020 WCU050

           

Application Table 7:  Utilities (continued)
Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

Nominal

Pressure

2 to 7 bar g 10 bar g 10 bar g 20 bar g 35 bar g 50 bar g 100 bar g
Carbon Steel

Design Pressure

2 bar g

(29 psig)

10.0 bar g

(145 psig)

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.5 bar g

(500 psig)

51.0 bar g

(740 psig)

102.0 bar g

(1480 psig)

Stainless Steel

Design Pressure

  10.0 bar g

(145 psig)

  18.9 bar g

(275 psig)

     
Chlorinated Polyvinyl Chloride (CPVC) 5.1 bar g

(75 psig)

           
High Density Polyethylene (HDPE) 6.9 bar g

(100 psig)

  10.3 bar g

(150 psig)

       

Fluid

Service

Pipe Class Specification
Water

    Cooling (aboveground)

 

WCU010

 

 

 

 

 

 

 

 

    Cooling (underground) APU007 (1)
    Cooling (chemical treatment) WPU005A WCU010
    Fire (underground) APU010 (1)
    Jacket   WCU010
    Potable (aboveground) WGW010
    Potable (underground) APU007 (1)
    Utility (aboveground) WCU010
    Utility (underground)

 

APU007 (1)
    DCAC (open loop) (Note 2)

        Instrumentation

 

WSG020 (3)

        Process water

 

WCU010
    DCAC (closed loop) (Note 2)

        Instrumentation

 

WSG020 (3)

        Process water       WSG020 (3)
        Makeup water      WCU010
        Blowdown water WSG020 (3)

           

Application Table 7:  Utilities (continued)
Nominal Pressure Rating [bar g] and Design Pressure Rating [bar g (psig)] at Ambient Temperature

(See Table 8 for Design Pressure Ratings at Specified Temperature Ranges)

Nominal

Pressure

2 to 7 bar g 10 bar g 10 bar g 20 bar g 35 bar g 50 bar g 100 bar g
Carbon Steel

Design Pressure

2 bar g

(29 psig)

10.0 bar g

(145 psig)

10.3 bar g

(150 psig)

19.6 bar g

(285 psig)

34.5 bar g

(500 psig)

51.0 bar g

(740 psig)

102.0 bar g

(1480 psig)

Stainless Steel

Design Pressure

  10.0 bar g

(145 psig)

  18.9 bar g

(275 psig)

     
Chlorinated Polyvinyl Chloride (CPVC) 5.1 bar g

(75 psig)

           
High Density Polyethylene (HDPE) 6.9 bar g

(100 psig)

  10.3 bar g

(150 psig)

       

Fluid

Service

Pipe Class Specification
Water – continued

    Waste Nitrogen Tower

(open loop) (Note 2)

Instrumentation

 

 

 

 

 

 

 

 

 

WSG020 (3)

Water to/from tower

 

WCU010
    Waste Nitrogen Tower

 (closed loop) (Note 2)

 Instrumentation

 

 

WSG020 (3)

        Water to/from tower WSG020 (3)
        Makeup water WCU010
        Blowdown water WSG020 (3)

 

Application Table 7 Notes:

 

1)   American non-metallic piping material specifications are listed for reference.

2)   See 3EQ10601 for definitions of open and closed loop systems and piping material recommendations.

3)   The suitability of 304/316 stainless steel piping materials in water services operating at or above 50°C (122°F) must be verified because of the potential of stress corrosion cracking resulting from a high level of chlorides in the water.

 

TABLE 8 – Global Piping Class Specification Summary (See Notes 4 and 5 for exceptions)                                                                                                                                                

       

Piping Class Specification Application Guide

    

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

  Piping Class

Specification

4WPI-C

Service Application Table(s) Size Range

DN

Des Press bar g Temp Range

°C

Material Flange Rating Gasket MPS 4WPI-

(Note 3)

Corr. All.

mm

Remarks
APU007 Underground Potable and Cooling Water Service 7 50-1200 6.9

6.2

5.4

5.2

4.3

+2 to 27

to 32

to 38

to 43

to 49

HDPE DR 17 MWFG32 0
APU010 Underground Firewater Service 7 50-600 10.3

8.6

6.9

5.5

+2 to 23

to 38

to 49

to 60

HDPE Class 150 MWFG32 0
AKC020 Cryogenic Storage Tanks –

Customer Stations

2 8-80

 

 

 

20.7

18.6

-198 to 37.8

to 65.6

Copper Tube Class 300 MWFG08 0 For the class 200 4-bolt “Mueller” tongue-and-groove flanges, use ring gasket in MAKL01
AKC030 Cryogenic Storage Tanks –

Customer Stations

2 8-40 27.6

21.3

-198 to 37.8

to 65.6

Copper Tube Class 300 MWFG08 0 For the class 200 4-bolt “Mueller” tongue-and-groove flanges, use ring gasket in MAKL01
WAC004 Process Cold Box – ASU 1 15-1200 4.0 -198 to 65 Aluminium Class

150 & 300

MWFG07 0
WAC010 Process Cold Box – ASU 1 15-1500 10.3 -198 to 65 Aluminium Class

150 & 300

MWFG07 0
WAC015 Process Cold Box – ASU 1 15-1500 13.5 -198 to 65 Aluminium Class

150 & 300

MWFG07 0
WAC035 Process Cold Box – ASU 1 15-600 34.5 -198 to 65 Aluminium Class

300 & 600

MWFG07 0
WAC050 Process Cold Box – ASU 1 15-500 49.6

45.5

-198 to 38

to 65

Aluminium Class 600 MWFG07 0
WAC060 Process Cold Box – ASU 1 15-500 62.0 -198 to 65 Aluminium Class 600 MWFG07 0
WAC070 Process Cold Box – ASU 1 15-400 70.0 -198 to 65 Aluminium N/A N/A 0

 

  TABLE 8 – Global Piping Class Specification Summary (continued)
  Piping Class

Specification

4WPI-C

Service Application Table(s) Size Range

DN

Des Press bar g Temp Range

°C

Material Flange Rating Gasket MPS 4WPI-

(Note 3)

Corr. All.

mm

Remarks
  WAC085 Process Cold Box – ASU 1 15-400 85.0 -198 to 65 Aluminium N/A N/A 0  
WAH004 Process Cold Box – Hazardous 1 15-1200 4.0 -198 to 65 Aluminium Class

150 & 300

MWFG08

 

0
WAH010 Process Cold Box – Hazardous 1 15-1200 10.3 -198 to 65 Aluminium Class

150 & 300

MWFG08

 

0
WAH015 Process Cold Box – Hazardous 1 15-1200 13.5 -198 to 65 Cold Box – Hazardous Class

150 & 600

MWFG08

 

0
WAH020

 

Process Cold Box – Hazardous 1 15-1200 19.0 -198 to 65 Cold Box – Hazardous N/A N/A 0
WAH035 Process Cold Box – Hazardous 1 15-600 34.5 -198 to 65 Aluminium Class

300

600

 

MWFG08

MWFG10

0
WAH050 Process Cold Box – Hazardous 1 15-300 49.6

45.5

-198 to 38

to 65

Aluminium Class 600 MWFG10 0  
WAH060 Process Cold Box – Hazardous 1 15-300 62.0 -198 to 65 Aluminium Class 600 MWFG10 0  
WAH070 Process Cold Box – Hazardous 1 15-300 70.0 -198 to 65 Aluminium N/A N/A 0  
WCE020 6 15-1200 19.6

17.9

15.8

13.7

11.7

-20 to 38

to 93

to 149

to 204

to 260

Carbon Steel Class 150 MWFG16 1.3  
WCE020A 6 15-1200 19.6

17.9

15.8

13.7

11.7

9.7

-20 to 38

to 93

to 149

to 204

to 260

to 316

Carbon Steel Class 150 MWFG16 1.3  
WCE020B Dry Chlorine 6 15-100 19.6

18.7

17.9

15.8

13.7

11.7

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 300 MWFG17 1.3  
WCE020C 6 15-1200 19.6

17.9

15.8

13.7

11.7

9.7

-20 to 38

to 93

to 149

to 204

to 260

to 316

Carbon Steel Class 150 MWFG16 1.3  
WCE050 6 15-600 51.0

49.0

46.9

45.1

43.7

41.9

-20 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 300 MWFG17 1.3  
WCG002 Process Yard Noncryogenic

Utility Lines

3, 7 15-1200 2.0 -20 to 204 Carbon Steel Class 150 MWFG07 1.3  
WCG010 Process Yard Noncryogenic Relief Device Discharge, Cold Box Purge and Utility Lines 3, 5, 7 15-1500 10.3 -20 to 204 Carbon Steel Class 150 MWFG07 1.3  
WCG020 Process Yard Noncryogenic Relief Device Discharge, Cold Box Purge and Utility Lines 3, 5, 7 15-1200 19.6

18.7

17.9

15.8

13.7

-20 to 38

to 65

to 93

to 149

to 204

Carbon Steel Class 150 MWFG07 1.3  
WCG020A 3, 5, 7 15-1200 19.6

18.7

17.9

15.8

13.7

-20 to 38

to 65

to 93

to 149

to 204

Carbon Steel Class 150 MWFG01 1.3  
WCG035 Process Yard Noncryogenic Relief Device Discharge, Cold Box Purge and Utility Lines 3, 5, 7 15-600 34.4 -20 to 204 Carbon Steel Class 300 MWFG07 1.3  
WCG050 Process Yard Noncryogenic Relief Device Discharge and Utility Lines 3, 5, 7 15-600 51.0

48.7

46.5

45.1

43.7

-20 to 38

to 65

to 93

to 149

to 204

Carbon Steel Class 300 MWFG07 1.3  
WCG100 Process Yard Noncryogenic Relief Device Discharge and Utility Lines 3, 5, 7 15-600 102.0

93.1

90.6

87.5

82.7

-20 to 38

to 93

to 149

to 204

to 260

Carbon Steel Class 600 MWFG04

 

1.3  
WCG150 Process Yard Noncryogenic Relief Device Discharge Lines 3, 5 15-300 153.0

146.3

139.6

135.8

131.0

123.7

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 900 & 1500 MWFG04

 

1.3  
WCG260 Process Yard Noncryogenic 3 15-300 254.5

244.1

232.7

226.1

218.5

206.5

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 1500 MWFG04

 

1.3  
WCH010 Process Yard Noncryogenic Hazardous Relief Device Discharge and Utility Lines 3, 5, 7 15-1200 10.3 -29 to 260 Carbon Steel Class 150 MWFG08

 

1.3  
WCH020 Process Yard Noncryogenic Hazardous Relief Device Discharge and Utility Lines 3, 5, 7 15-1200 19.6

18.7

17.9

15.8

13.7

11.7

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 150 MWFG08

 

1.3  
WCH035 Process Yard Noncryogenic Hazardous Relief Device Discharge and Utility Lines 3, 5, 7 15-600 34.4 -29 to 260 Carbon Steel Class 300 MWFG04

 

1.3  
WCH038 3, 5, 7 15-600 38.2

36.2

33.1

32.5

31.6

24.9

20.7

16.6

-20 to 200

to 250

to 300

to 325

to 350

to 375

to 400

to 425

Carbon Steel Class 300 MWFG04 1.3  
WCH050 Process Yard Noncryogenic Hazardous Relief Device Discharge and Utility Lines

 

3, 5, 7 15-600 51.0

48.7

46.5

45.1

43.7

41.3

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 300 MWFG04

 

1.3  
WCH100 Process Yard Noncryogenic Hazardous Relief Device Discharge and Utility Lines 3, 5, 7 15-600 102.0

93.1

90.6

87.5

82.7

-29 to 38

to 93

to 149

to 204

to 260

Carbon Steel Class 600 MWFG04

 

1.3  
WCH150 Process Yard Noncryogenic Hazardous Relief Device Discharge Lines 3, 5 15-300 153.0

146..3

139.6

135.8

131.0

123.7

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 1500/900 MWFG04

 

1.3  
WCH260 Process Yard Noncryogenic Hazardous 3 15-300 254.5

244.1

232.7

226.1

218.5

206.5

-29 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 1500 MWFG04

 

1.3  
WCN010 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-1200 10.3 -29 to 121 Carbon Steel Class 150 MWFG08

 

1.3  
WCN020 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-1200 19.6

18.7

17.9

15.8

14.5

13.5

-29 to 38

65

93

149

176

204

Carbon Steel Class 150 MWFG08

 

1.3  
WCN035 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-600 34.4 -29 to 204 Carbon Steel Class 300 MWFG04

 

1.3  
WCN050 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-600 51.0

48.7

46.5

45.1

-29 to 38

65

93

149

Carbon Steel Class 300 MWFG04

 

1.3  
WCN100 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-600 102.0

93.1

90.6

-29 to 38

to 93

to 149

Carbon Steel Class 600 MWFG04

 

1.3  
WCN150 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-300 153.0

146.3

139.6

135.8

-29 to 38

65

93

149

Carbon Steel Class 900

& 1500

MWFG04

 

1.3  
WCN260 Process Yard Noncryogenic Hydrogen Sulfide (H2S) Service – NACE MR 0175 3 15-300 254.5

244.1

232.7

226.1

-29 to 38

65

93

149

Carbon Steel Class 1500 MWFG04

 

1.3  
WCP010 Process Yard Noncryogenic Pulsating/Cyclic/Utility Steam 3, 4, 7 15-1200 10.3

9.6

-20 to 297

to 316

Carbon Steel Class 150 MWFG08

 

1.3  
WCP020 Process Yard Noncryogenic Pulsating/Cyclic/Utility Steam

 

3, 4, 7 15-1200 19.6

18.7

17.9

15.8

13.7

11.7

9.6

-20 to 38

to 65

to 93

to 149

to 204

to 260

to 316

Carbon Steel Class 150 MWFG08

 

1.3 For piping from a reciprocating compressor to first block valve only.
WCP020A Process Yard Noncryogenic Pulsating/Cyclic 3 15-1200 21.1

19.9

18.2

-29 to 204

260

316

Carbon Steel Class 300 MWFG04

 

1.3 For piping from a reciprocating compressor to the first block valve only. For applications with design pressures at elevated temperatures that exceed the pressure ratings of PN20 (Class 150) flanges.
WCP036

(See Note 1)

Process Yard Noncryogenic Pulsating/Cyclic 3 15-200 37.9 -29 to 65 Carbon Steel Class 300 MWFG04

 

0
WCP036A

(See Note 2)

Process Yard Noncryogenic Pulsating/Cyclic 3 15-300 37.9 -29 to 65 Carbon Steel Class 300 MWFG04

 

0
WCU010 Utilities – Water 7 15-1500 10.0

7.9

5.8

3.4

-20 to 65

to 93

to 121

to 149

Carbon Steel Class 150 MWFG32 1.3 Specification is limited to 10 bar and cooling water to ensure it falls within SEP under the PED.
WCU010A Utilities – Cooling Water 15-600 10.3 -29 to 110 Carbon Steel Class 150 MWFG07 1.3 Victaulic Ductile Iron and CS Grooved End Fittings, and Ductile Iron Couplings
WCU050 Utilities – Boiler Feed Water, Steam and Steam Condensate 7 15-600 51.0

48.7

46.5

45.1

43.7

41.3

37.9

36.8

36.8

-20 to 38

to 65

to 93

to 149

to 204

to 260

to 316

to 343

to 371

Carbon Steel Class 300 MWFG04

 

1.3
WCX002 Gaseous Oxygen (GOX) 15-600 2.07 -29 to 65.6

 

Carbon Steel Class 150 MWFG07 1.3 Limited to Low Pressure, Low Purity Oxygen VSA Systems. Victaulic Ductile Iron and CS Grooved End Fittings, and Ductile Iron couplings.
WCX002A Gaseous Oxygen (GOX) 15-600 2.07 -20 to 65.6 Carbon Steel Class 150 MWFG07 1.3 Limited to Low Pressure, Low Purity Oxygen
WCX020 Gaseous Oxygen (GOX) 4 15-600 19.6

18.8

17.9

16.9

15.8

13.7

-20 to 38

to 65

to 93

to 121

to 149

to 204

Carbon Steel Class 150 MWFG07 1.3
WCX035 Gaseous Oxygen (GOX)

Pulsating

4 15-600 34.4 -29 to 204 Carbon Steel Class 300 MWFG07 1.3
WCX050 Gaseous Oxygen (GOX)

Pulsating

4 15-600 51.0

48.7

46.5

45.8

45.1

43.7

-29 to 38

to 65

to 93

to 121

to 149

to 204

Carbon Steel Class 300 MWFG07 1.3
WCX100 Gaseous Oxygen (GOX)

Pulsating

4 15-600 102.0

97.5

93.0

91.8

90.6

87.5

-29 to 38

to 65

to 93

to 121

to 149

to 204

Carbon Steel Class 600 MWFG05 1.3
WDH020 3 15-300 19.8

19.5

17.7

15.8

13.8

12.1

10.2

8.4

6.5

-29 to 38

to 50

to 100

to 150

to 200

to 250

to 300

to 350

to 400

1 ¼ Cr – ½ Mo Class 150 MWFG08 1.3
WDH050 3 15-300 51.7

51.5

49.7

48.0

46.3

42.9

36.5

-29 to 38

to 100

to 150

to 200

to 250

to 300

to 400

1 ¼ Cr – ½ Mo Class 300 MWFG04 1.3
WDH100 3 15-300 103.4

103.0

99.5

95.9

92.7

85.7

73.3

-29 to 38

to 100

to 150

to 200

to 250

to 300

to 400

1 ¼ Cr – ½ Mo Class 600 MWFG04 1.3
WGW010 7 15-50 10 -29 to 66 Galv. Carbon Steel Class 150 MWFG11 0
WLE050A 6 15-40 51.0

49.0

46.9

45.1

43.7

41.7

-40 to 38

to 65

to 93

to 149

to 204

to 260

Carbon Steel Class 300 MWFG17 1.6
WME020 6 15-50 15.9

13.8

13.1

12.4

-198 to 38

to 93

to 149

to 204

Nickel-Copper Alloy 400 Class 150 MWFG18 0
WME020A 6 15-50 15.9

13.8

13.1

12.4

11.7

9.7

-198 to 38

to 93

to 149

to 204

to 260

to 316

Nickel-Copper Alloy 400 Class 150 MWFG15 0
WMX020 Gaseous Oxygen (GOX)

with St Stl Flanges

4 15-600 18.9

17.4

15.8

14.1

13.1

-198 to 38

to 65

to 93

to 149

to 204

Monel Class 150 (St Stl) MWFG07 0 If Monel flanges are required they shall be class 300 minimum.
WMX040 Gaseous Oxygen (GOX) 4 15-600 41.3

38.9

36.5

34.1

33.0

-198 to 38

to 65

to 93

to 149

to 204

Monel Class 300 MWFG07 0
WMX050 Gaseous Oxygen (GOX)

with St Stl Flanges

4 15-600 49.6

45.5

41.3

37.2

34.1

-198 to 38

to 65

to 93

to 149

to 204

Monel Class 300 (St Stl) MWFG07 0 If Monel flanges are required, they shall be class 600 minimum.
WMX085 Gaseous Oxygen (GOX) 4 15-600 82.7

77.7

72.7

68.2

65.8

-198 to 38

to 65

to 93

to 149

to 204

Monel Class 600 MWFG05 0
WMX125 Gaseous Oxygen (GOX) 4 15-300 124.1

116.6

109.2

102.3

98.9

-198 to 38

to 65

to 93

to 149

to 204

Monel Class 900

& 1500

MWFG05 0
WNE050A 6 15-100 51.7

50.3

48.3

46.1

-40 to 94

148

204

260

Nickel-ChromiumMolybde-num Alloy Class 300 MWFG19 0
WNE240 Electronics Non-Electropolished (EP) System 6 ¼” to 1″ OD

Tube

240.0

230.0

220.0

-30 to 200

to 260

to 320

HastelloyÒ Alloy C22 N/A N/A 0 Primary joints are butt welded and face seal connections are permitted.
WPE010C Chlorine 6 25-150 5.2 -40 to 65 PVDF Class 150 MWFG21 0
WPE020 6 25-100 19.6

18.7

17.9

15.8

-29 to 38

to 65

to 93

to 149

PTFE Lined Carbon Steel Class 150 MWFG11 0
WPU005A Water Treatment Chemicals 7 15-80 5.1 1.7 to 43 CPVC Class 150 MWGF13 0
WSC020 Process Cold Box and Yard Cryogenic – ASU

Defrost/Disposal/Relief Device Discharge Lines

1, 2, 5 15-1200 19.0

18.3

15.7

14.2

-254 to 38

to 50

to 100

to 150

Stainless Steel Class 150 MWFG07 0
WSC020A 2 15-80 19.0

18.3

15.7

14.2

-254 to 38

to 50

to 100

to 150

Stainless Steel Class 150 MWFG08 0
WSC020D Liquid oxygen (LOX) pumps, crude liquid argon (CLAR) pump systems, and other service pumps with 40% or greater oxygen content. 2 15-600 19.0

18.3

15.7

14.2

254 to 38

to 50

to 100

to 150

Stainless Steel Class 150 MWFG08 0
WSC035 Process Cold Box and Yard Cryogenic – ASU

Defrost/Disposal/Relief Device Discharge Lines

1, 2, 5 15-600 34.4 -198 to 121 Stainless Steel Class 300 MWFG07 0
WSC035A 2 15-80 34.4 -254 to 121 Stainless Steel Class 300 MWFG08 0
WSC035D Liquid oxygen (LOX) pumps, crude liquid argon (CLAR) pump systems, and other service pumps with 40% or greater oxygen content. 2 15-600 34.4 -198 to 121 Stainless Steel Class 300 MWFG04 0
WSC050 Process Cold Box and Yard Cryogenic – ASU

Defrost/Disposal/Relief Device Discharge Lines

1, 2, 5 15-600 49.6

47.8

40.9

37.0

-198 to 38

to 50

to 100

to 150

Stainless Steel Class 300 MWFG07 0
WSC050A Process Yard Cryogenic

Flat Bottom Storage Tank  – Liquid Withdrawal Lines

2 15-300 50.0 -198 to 204 Stainless Steel Prohibited N/A 0 Schedule 40S Pipe
WSC050B Process Yard Cryogenic

Storage Tank Vacuum Space

15-100 50.0 -198 to 100 Stainless Steel Prohibited N/A 0 Eddy current tested.
WSC050C Process Yard Cryogenic

Tube in Storage Tank Vacuum Space

12.7 OD Tube 50.0 -253 to 100 Stainless Steel Tube Prohibited N/A 0 Eddy current tested.
WSC050D Liquid oxygen (LOX) pumps, crude liquid argon (CLAR) pump systems, and other service pumps with 40% or greater oxygen content. 2 15-600 49.6

47.8

40.9

37.0

-198 to 38

to 50

to 100

to 150

Stainless Steel Class 300 MWFG04 0
WSC100 Process Cold Box and Yard Cryogenic – ASU

Defrost/Disposal/Relief Device Discharge lines

1, 2, 5 15-300 99.3

91.0

82.7

78.6

-198 to 38

to 65

to 93

to 121

Stainless Steel Class 600 MWFG04

 

0
WSC130 2, 5 15-300 130.0 -198 to 65 Stainless Steel Class 900 & 1500 MWFG04 0
WSC150 Process Yard Cryogenic – ASU

Defrost/Disposal/Relief Device Discharge lines

2, 5 15-300 148.9

136.5

124.1

111.7

102.7

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 900 and 1500 MWFG04

 

0
WSC260 Process Yard Cryogenic – ASU 2 15-150 248.2

227.5

206.8

186.1

171.3

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 1500 MWFG04

 

0
WSE020D

 

Electronics Non-Electropolished (EP) System 6 15-150 18.9

17.4

15.8

15.0

14.1

198 to 38

to 65

to 93

to 121

to 149

Stainless Steel Class 150 MWFG12

 

0
WSE020F

 

Electronics Non-Electropolished (EP) System 6 15-150 18.9

17.4

15.8

15.0

14.1

198 to 38

to 65

to 93

to 121

to 149

Stainless Steel Class 150 MWFG12

 

0
WSE020G 6 15-150 18.9

17.4

15.8

15.0

14.1

13.1

11.7

9.7

-198 to 38

65

93

121

149

204

260

315

Stainless Steel Class 150 MWFG25 0
WSE020J 6 15-150 18.9

17.5

16.2

15.5

14.8

14.1

13.7

-198 to 38

65

93

121

149

177

204

Stainless Steel Class 150 MWFG12 0
WSE020L 6 15-150 19.0 -101 to 65 Stainless Steel N/A N/A 0
WSE020M 6 15-150 18.9

17.5

16.2

15.5

14.8

-198 to 38

65

93

121

149

Stainless Steel Class 150 MWFG12 0
WSE020N 6 15-150 18.9

16.2

14.8

13.4

11.7

-198 to 38

93

149

204

260

Stainless Steel Class 300 MWFG14 0
WSE020P 6 15-50 18.9

16.2

14.8

13.4

11.7

-198 to 38

93

149

204

260

Stainless Steel Class 300 MWFG14 0
WSE050 6 15-150 49.6

46.2

42.7

38.6

35.5

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 300 MWFG14 0
WSE050E 6 15-150 49.6

45.5

41.3

39.3

-198 to 38

65

93

121

Stainless Steel Class 300 MWFG14 0
WSE050X 6 15-150 49.6

46.2

42.7

38.6

35.5

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 300 MWFG14 0
WSE100X 6 15-150 99.3

85.5

77.2

70.7

65.8

-198 to 38

to 93

to 149

to 204

to 260

Stainless Steel Class 600 MWFG04 0
WSG020 Process Yard Cryogenic – ASU

DCAC and Waste N2 Systems

7 8-600 18.9

17.4

15.8

15.0

-29 to 38

to 65

to 93

to 121

Stainless Steel Class 150 MWFG07 0
WSH020 Process Cold Box and Yard Cryogenic – Hazardous

Defrost/Disposal/Relief Device Discharge lines

1, 2, 5 15-600 18.9

17.4

15.8

15.0

12.7

10.3

-198 to 38

to 65

to 93

to 121

149

177

Stainless Steel Class 150 MWFG08

 

0 Avoid flanges in Cold Box
WSH035 Process Cold Box and Yard Cryogenic – Hazardous

Defrost/Disposal/Relief Device Discharge lines

1, 2, 5 15-500 34.4 -198 to 121 Stainless Steel Class 300 MWFG04

 

0 Avoid flanges in Cold Box
WSH050 Process Cold Box and Yard Cryogenic – Hazardous

Defrost/Disposal/Relief Device Discharge lines

1, 2, 5 15-300 49.6

45.5

41.3

39.3

-198 to 38

to 65

to 93

to 121

Stainless Steel Class 300 MWFG04

 

0 Avoid flanges in Cold Box
WSH100 Process Cold Box and Yard Cryogenic – Hazardous

Defrost/Disposal/Relief Device Discharge lines

1, 2, 5 15-300 99.3

91.0

82.7

78.6

-198 to 38

to 65

to 93

to 121

Stainless Steel Class 600 MWFG04

 

0 Avoid flanges in Cold Box
WSH100A Process Cold Box and Yard Cryogenic – HCl 15-100 103.4

102.4

101.6

-53 to 93

to 149

to 163

Stainless Steel Class 900 (Monel) MWFG09

 

0
WSH150 Process Cold Box and Yard Cryogenic – Hazardous

Defrost/Disposal/Relief Device Discharge lines

2, 5 15-300 148.9

136.5

124.1

111.7

102.7

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 900 & 1500 MWFG04

 

0 Avoid flanges in Cold Box
WSH260 Process Yard Cryogenic – Hazardous 2 15-150 248.2

227.5

206.8

186.1

171.3

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 1500 MWFG04

 

0 Avoid flanges in Cold Box
WSI020

 

Electronics Non-Electropolished (EP) System

(Instrumentation)

6 ¼”-1″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are compression ends and orbital welded connections are permitted.
WSL010 Utilities – Lube oil supply 7 8-300 10.0 -29 to 149 Stainless Steel Class

150

MWFG07 0 Specification is limited to 10 bar and lube oil to ensure it falls within SEP under the PED.
WST020

 

Electronics Non-Electropolished (EP) System 6 ¼”-1″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are compression ends and orbital welded connections are permitted.
WST020A Electronics Electropolished (EP) System 6 ¼”-6″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Electro-polished N/A N/A 0 Primary joints are butt welded and face seal connections are permitted. AKA Piping Class KET in the Electronics Industry.
WST020B Electronics Non-Electropolished (EP) System 6 ¼”-6″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are butt welded and face seal connections are permitted. Cleaned for Oxygen Service
WST020C Electronics Non-Electropolished (EP) System 6 ¼”-6″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded without weld ring and VCR face seal instead of VCO seal is permitted.
WST020D Electronics Non-Electropolished (EP) System 6 ¼”-6″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded with Hastelloy weld ring and VCO face seal connections are permitted.
WST020E Electronics Non-Electropolished (EP) System 6 ¼”-6″

OD

Tube

19.0

15.9

14.1

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded without weld ring and VCO face seal connections are permitted.
WST020F Electronics Electropolished (EP) System 6 ½”-6″

OD

Tube

19.0

15.9

14.1

-254 to 38

to 93

to 149

Stainless Steel Tube, Electropolished N/A N/A 0 Primary joints are butt welded and face seal connections are permitted.
WST020G Electronics Non-Electropolished (EP) System 6 ½”-6″

OD

Tube

19.0

15.9

14.1

-254 to 38

to 93

to 149

Stainless Steel Tube N/A N/A 0 Primary joints are butt welded and face seal connections are permitted. Cleaned for Oxygen Service
WST020H 6 ½”-6″

OD

Tube

19.0

16.2

14.8

-196 to 38

to 93

to 149

Stainless Steel Tube Class 150 MWFG12 0 Primary joints are butt welded and face seal connections are permitted.
WST050 Electronics Non-Electropolished (EP) System 6 ¼”-6″

OD

Tube

49.6

42.7

38.6

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded and VCR face seal connections are permitted.
WST050A

 

Electronics Electropolished (EP) System 6 ¼”-1″

OD

Tube

49.6

42.7

38.6

-196 to 38

to 93

to 149

Stainless Steel Tube, Electro-polished N/A N/A 0 Primary joints are butt welded and face seal connections are permitted.
WST050B

 

Electronics Non-Electropolished (EP) System 6 ¼”-1″

OD

Tube

49.6

42.7

38.6

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are compression ends and orbital welded connections are permitted.
WST050C 6 ¼”-2″

OD

Tube

49.6

42.7

38.6

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed Class 300 MWFG11 0 Primary joints are butt welded and face seal connections are permitted.
WST050D 6 ¼”-1″

OD

Tube

49.6

42.7

38.6

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded and VCR face seal connections are permitted.
WST110 Electronics Non-Electropolished (EP) System 6 ¼”-1″

OD

Tube

99.3

85.5

77.2

-196 to 38

to 93

to 149

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded and VCR face seal connections are permitted.
WST205

 

Electronics Non-Electropolished (EP) System 6 ¼”- ½” OD

Tube

 

206.9

174.4

156.5

 

-196 to 38

to 93

to 149

 

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are orbital welded and VCR face seal connections are permitted.
WST205A Electronics Electropolished (EP) System 6 ¼”- ½” OD

Tube

 

206.9

174.4

156.5

142.4

-196 to 38

to 93

to 149

to 205

Stainless Steel Tube, Electro-polished N/A N/A 0 Primary joints are butt welded and face seal connections are permitted.
WST205B Electronics Non-Electropolished (EP) System 6 ¼”- ½” OD

Tube

206.9

174.4

156.5

142.4

-196 to 38

to 93

to 149

to 205

Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are butt welded and face seal connections are permitted. Cleaned for Oxygen Service AKA Piping Class KET in the Electronics Industry.
WST205C 6 ¼”- ½” OD

Tube

206.9 -101 to 121 Stainless Steel Tube, Bright Annealed N/A N/A 0 Primary joints are compression ends and Orbital welded connections are permitted.
WSX010 Gaseous Oxygen (GOX)

High Velocity

4, 5 15-600 10.3 -198 to 204 Stainless Steel Class 150 MWFG07 0 This is a 3.2 mm (1/8 in) min. W/T spec. and may be used where 3PI60001 allows the use of this thickness stainless steel.
WSX020 Gaseous Oxygen (GOX)

Yard

4, 5 15-600 18.9

17.4

15.8

14.1

13.1

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 150 MWFG07 0
WSX020A Gaseous Oxygen (GOX)

High Velocity

4 15-600 18.9

17.4

15.8

14.1

13.1

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 150 MWFG07 0 This is a 6.3 mm (1/4 in) min. W/T spec. and may be used where 3PI60001 allows the use of this thickness stainless steel.
WSX027A Gaseous Oxygen (GOX)

High Velocity

4 15-600 27.5

 

-198 to 204

 

Stainless Steel Class 300 MWFG07 0 This is a 6.3 mm (1/4 in) min. W/T spec. and may be used up to 25.8 bar g (375 psig) where 3PI60001 allows the use of this thickness stainless steel.
WSX035 Gaseous Oxygen (GOX)

Yard

4, 5 15-500 34.4

34.1

-198 to 176

to 204

Stainless Steel Class 300 MWFG07 0
WSX050 Gaseous Oxygen (GOX)

Yard and Seal Gas

4, 5 15-300 49.6

45.5

41.3

37.2

34.1

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 300 MWFG07 0
WSX100 Gaseous Oxygen (GOX)

Yard

4, 5 15-300 99.3

91.0

82.7

74.4

68.6

-198 to 38

to 65

to 93

to 149

to 204

Stainless Steel Class 600 MWFG05 0
WSX130 Gaseous Oxygen (GOX)

Yard

4, 5 15-300 130.0

122.6

109.0

98.3

-198 to 65

to 100

to 150

to 200

Stainless Steel Class 900 & 1500 MWFG05 0

 

Table 8 Notes on next page.

Table 8 Notes:

 

(1) WCP036—This specification is intended to be used for piping headers on Pressure Swing Adsorber (PSA) skids. These headers are subjected to pressure variations as they transfer gas between PSA vessels. This specification may be used on any piping system with a 0.0 mm (0.00 in) corrosion allowance and exposed to pressure variations and operating within the given limits of pressure and maximum cycles (see specification front sheet). The scope of this specification does not include temperature fluctuations and, therefore, is not applicable to Temperature Swing Adsorption (TSA) systems.

 

(2) WCP036A—This specification is intended to be used for piping directly attached to Pressure Swing Adsorber (PSA) vessels. This piping is subjected to the same pressure variations as the PSA vessel to which it is attached. This specification may be used on any piping system with a 0.0 mm (0.00 in) corrosion allowance and exposed to pressure variations and operating within the limits of pressure and maximum cycles (see specification front sheet). The scope of this specification does not include temperature fluctuations and, therefore, is not applicable to Temperature Swing Adsorption (TSA) systems.

 

(3) See “Table 9 – Global Gasket Material Purchase Specifications” for description of gaskets, Air Products approved Pressure-Temperature (P-T) application limits, and approved supplier and style configurations.

 

(4) The following global pipe class specifications (4WPIC documents) have been excluded from this summary because of their country specific or service type specific nature. These documents should not be used unless specifically approved by the applicable Mechanical Systems Engineering Lead Engineer.

  1. a) Document numbers 4WPICJ… ; where J = Japanese Design Code or National Authority specific.
  2. b) Document numbers 4WPICWMA… ; M = Piping Material and A =  Electronic Chemicals (Ashland) specific.
  3. c) Documents numbers 4WPI- CWIU001, CWPE010, CWPE010A, CWPE010B, CWST010, and CWST010A which are for Electronic Chemicals (Ashland) use only.

 

(5) The following American pipe class specifications (4WPICA documents) have been included in this summary for reference because no global documents in these materials currently exist.

  1. a) Copper Tube specifications AKC020 and AKC030
  2. b) High Density Polyethylene (HDPE) specifications APU007 and APU010

TABLE 9 – Global Gasket Material Purchase Specifications                                                                               

Piping Class Specification Application Guide

Piping Class Specification Application Guide

Piping Class Specification Application Guide

  Material Purchase Gasket

Type

(Notes)

Gasket

Description

Air Products Specification

Approved P-T Limits

(See Note #1)

Approved Supplier/Style

 

Comments

 and Notes

  Specification (MPS)

4WPI-

Flange Class or

Max. Pressure bar g (psig)

Temperature

Min. °C (°F)

Max. °C (°F)

(Alt. Supplier)
MWFG01 Compressed Fiber Flat Ring BlueGard Style 3200 -Aramid fibers w/ SBR binder.

 

Klingersil C-4430 – Synthetic & glass fibers w/ NBR binder.

Class 150 and 300

 

-198°C (-325°F)

+121°C (+250°F)

 

Garlock BlueGard

Style 3200

 

Klingersil Style C-4430

Note 2
MWFG02 Low Stress Spiral Wound

 

Austenitic SS windings w/ Graphite filler and CS outer ring. Class 150 and 300

 

-29°C (-20°F)

+427°C (+800°F)

Flexitallic Style LS

(Lamons Spiraseal Style WR-LC)

Note 3
MWFG03 Spiral Wound Austenitic SS windings w/ Graphite filler and CS outer ring.

 

Class 150 thru Class 900 -29°C (-20°F)

+427°C (+800°F)

Flexitallic Style CG

(Lamons Spiraseal Style WR)

MWFG04 Spiral Wound

 

Austenitic SS windings w/ Graphite filler and austenitic SS inner and outer rings. Class 150 thru Class 1500 -254°C (-425°F)

+427°C (+800°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG05 Spiral Wound

 

Monel windings w/ Graphite filler and Monel inner and outer rings. Class 150 thru Class 1500 -198°C (-325°F)

+427°C (+800°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG06 PTFE Flat Ring PTFE w/ silica filler Class 150 and 300

 

-198°C (-325°F)

+204°C (+400°F)

Garlock Gylon Style 3500 – Fawn Note 2  Use Style 3502 for oxygen service.
MWFG07 PTFE Flat Ring PTFE w/ silica filler

 

62 bar g (900 psig)

 

-198°C (-325°F)

+204°C (+400°F)

Flexitallic Style SIGMA 511 or Lamons Matrix L100 This gasket may be used with Class 600 flanges up the max. pressure as listed.
MWFG08 Low Stress Spiral Wound Austenitic SS windings w/ Graphite filler and austenitic SS inner and outer rings. Class 150 and 300

 

-254°C (-425°F)

+427°C (+800°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI- LC)

Note 3
MWFG09 Spiral Wound

 

Hastelloy C276 windings w/ Graphite filler and 316L SS inner and outer rings. Class 150 thru Class 1500 -198°C (-325°F)

+427°C (+800°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG10 Solid Metal Core 316L SS core w/ integral outer ring and Graphite facing material Class 1500 and 2500

 

-240°C(-400°F)

+427°C (+800°F)

Flexitallic Flexpro Style ZG

 

  TABLE 9 – Global Gasket Material Purchase Specifications (continued)
  Material Purchase Gasket

Type

(Notes)

Gasket

Description

Air Products Specification

Approved P-T Limits

(See Note #1)

Approved Supplier/Style

 

Comments

 and Notes

  Specification (MPS)

4WPI-

Flange Class or

Max. Pressure bar g (psig)

Temperature

Min. °C (°F)

Max. °C (°F)

(Alt. Supplier)
MWFG11 PTFE Flat Ring PTFE flat ring gasket w/ 304 SS inner core Class 150 and 300

 

-198°C (-325°F)

+121°C (+250°F)

PureFlex Task-Line Note 2
MWFG12 Low Stress Spiral Wound

 

316L SS windings w/ PTFE filler and 316L SS inner and outer rings. Class 150 and 300

 

-198°C (-325°F)

+204°C (+400°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG13 Neoprene Flat Ring Neoprene Rubber 17.24 bar g

(250 psig)

-29°C (-20°F)

+121°C (+250°F)

Garlock Style 8312

 

Usage limited to Class 150 FRP flat faced flanges.
MWFG14 Spiral Wound

 

316L SS windings w/ PTFE filler and 316L SS inner and outer rings. Class 150 thru Class 1500 -198°C (-325°F)

+204°C (+400°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG15 Low Stress Spiral Wound

 

Monel windings w/ Graphite filler and Monel inner and outer rings. Class 150 and 300

 

-198°C (-325°F)

+427°C (+800°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG16 Low Stress Spiral Wound

 

316L SS windings w/ PTFE filler and 316L SS inner and CS outer rings. Class 150 and 300

 

-29°C (-20°F)

+204°C (+400°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG17 Spiral Wound

 

316L SS windings w/ PTFE filler and 316L SS inner and CS outer rings. Class 150 thru Class 1500 -29°C (-20°F)

+204°C (+400°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG18 Low Stress Spiral Wound

 

Monel windings w/ PTFE filler and Monel inner and outer rings. Class 150 and 300

 

-198°C (-325°F)

+204°C (+400°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG19 Spiral Wound

 

Hastelloy C276 windings w/ PTFE filler and Hastelloy inner and 316L SS outer rings. Class 150 thru Class 1500 -198°C (-325°F)

+204°C (+400°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG20 Spiral Wound

 

Monel windings w/ PTFE filler and Monel inner and outer rings. Class 150 thru Class 1500 -198°C (-325°F)

+204°C (+400°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG21 PVDF/EPDM Flat Ring PVDF bonded to EPDM 15.85 bar g

(230 psig)

-40°C (-40°F)

+121°C (+250°F)

Asahi Style AV Non-Hazardous Process Fluids and Chlorine
MWFG22 Solid Metal Core Monel core w/ integral outer ring and PTFE facing material Class 1500 and 2500

 

-198°C(-325°F)

+204°C (+400°F)

Flexitallic Flexpro Style ZG
MWFG23 Graphite Flat Ring Flexible graphite laminated to 316/316L SS tang insert Class 150 and 300 -240°C (-400°F)

+427°C (+800°F)

Grafoil Grade GHE Note 2
MWFG25 Low Stress Spiral Wound

 

316L SS windings w/ Graphite filler and 316L SS inner and outer rings. Class 150 and 300

 

-254°C (-425°F)

+427°C (+800°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG27 Spiral Wound

 

304 SS windings w/ Graphite filler and 304 SS inner ring and carbon steel outer ring. Class 150 thru Class 1500 -29°C (-20°F)

+427°C (+800°F)

Flexitallic Style CGI

(Lamons Spiraseal Style WRI)

MWFG28 Low Stress Spiral Wound

 

304 SS windings w/ Graphite filler and 304 SS inner ring and carbon steel outer ring. Class 150 and 300

 

-29°C (-20°F)

+427°C (+800°F)

Flexitallic Style LSI

(Lamons Spiraseal Style WRI-LC)

Note 3
MWFG32 Compressed Fiber Flat Ring BlueGard Style 3200 -Aramid fibers w/ SBR binder.

 

Klingersil C-4430 – Synthetic & glass fibers w/ NBR binder.

 

IDT SINYUAN Uniseal 3420

Class 150 -50°C (-58°F)

+121°C (+250°F)

 

Garlock BlueGard

Style 3200

 

Klingersil Style C-4430

 

IDT SINYUAN Uniseal 3420

Note 2
MWFG33 Spiral Wound Heat treated Inconel X750 windings w/ Extruded Flexible Graphite filler and 316L stainless steel inner and outer centering rings. Class 150 thru

Class 1500

-254°C (-425°F)

+427°C (+800°F)

Flexitallic Style CGI/ Extruded Flexible Graphite
MWFG34 Low Stress Spiral Wound Heat treated Inconel X750 windings w/ Extruded Flexible Graphite filler and 316L stainless steel inner and outer centering rings. Class 150 and 300 -254°C (-425°F)

+427°C (+800°F)

Flexitallic Style LSI/ Extruded Flexible Graphite Note 3
MWFG35 Insulating Gasket (VCS Firesafe) Insulating gaskets: Laminated stainless steel with a PTFE seal.

Isolation kit: Stud sleeves and insulating washers (see page 3).

Class 150 thru 1500 -129°C (-200°F)

+150°C (+302°F)

Garlock Pikotek Type VCFS with a G-10 double washer and Nomex sleeve isolation kit
MWFG36 Gore Expanded  PTFE Full Face and Flat Ring Gasket Expanded PTFE gaskets Class 125, 150, and  300 -198°C (-325°F)

+205°C (+400°F)

Gore Universal Pipe Gasket (Style 800) and Gore GR expanded PTFE sheeting Note 4

Table 9 Notes on next page.

Notes:

 

  1. “Air Products Specification Approved P-T Limits” may be higher or lower than the manufacture’s listed P-T limits because the Air Products limits are based on 1) Air Product’s historical successful field operating gasket usage up to the specified values, and 2) consultations with the gasket manufacture’s Engineering staff whenever the Air Product’s usage limits exceeded the manufacture’s published gasket application limits.
  2. Flat ring gaskets are limited to ASME Class 150 and Class 300 flanges except as noted.
  3. Low stress spiral-wound gaskets are limited to ASME Class 150 and Class 300 flanges.
  4. Oxygen service pressure and temperature limits are 40 barg (580 psig) and 60C (140F)

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