Specifies the facing column number according to the following correlations:
|
Gasket Material
|
Facing Column
|
|
Self-energizing types (O rings, metallic elastomer, and other self-sealing types)
|
2
|
|
Elastomers without fabric or a high percent of asbestos fiber:
Below 75A Shore Durometer
75A or higher Shore Durometer
|
2
2
|
|
Asbestos with Suitable Binder
1/8" thick
1/16" thick
1/32" thick
|
2
2
2
|
|
Elastomers with cotton fabric
|
2
|
|
Elastomers with Asbestos fabric
3 ply
2 ply
1 ply
|
2
2
2
|
|
Vegetable fiber
|
2
|
|
Spiral-wound, asbestos filled:
Carbon
Stainless, Monel, Nickel alloys
|
2
2
|
|
Corrugated Metal, w/ Asbestos or corrugated metal, jacketed with:
Soft aluminum
Doft copper or brass
Iron or soft steel
Monel or 4%-6% chrome
Stainless steels and nickel alloys
|
2
2
2
2
2
|
|
Corrugated Metal:
Soft aluminum
Soft copper or brass
Iron or soft steel
Monel or 4%-6% chrome
Stainless steels and nickel alloys
|
2
2
2
2
2
|
|
Flat metal, jacketed asbestos filled
Soft aluminum
Soft copper or brass
Iron or soft steel
Monel
4%-6% chrome
Stainless steels and nickel alloys
|
2
2
2
2
2
2
|
|
Grooved Metal
Soft aluminum
Soft copper or brass
Iron or soft steel
Monel or 4%-6% chrome
Stainless steels and nickel alloys
|
2
2
2
2
2
|
|
Solid flat metal
Soft aluminum
Soft copper or brass
Iron or soft steel
Monel or 4%-6% chrome
Stainless steels and nickel alloys
|
1
1
1
1
1
|
|
Ring joint
Iron or soft steel
Monel or 4%-6% chrome
Stainless steels and nickel alloys
|
1
1
1
|