Gasket Factors

Gasket factor m and seating stress y for flange joint design (ASME VIII App. 2)

Gasket Factors

Look up gasket factor m and minimum seating stress y, used to size flange bolt loads. Values follow ASME BPVC VIII-1 Mandatory Appendix 2 (the Taylor Forge m, y factors).

Three ways to find a gasket:

  • Material — search by material, e.g. graphite, PTFE, spiral wound.
  • Gasket type — pick a gasket group.
  • Threshold filter — set a minimum m or y.

Click any result to see m, seating stress y (in MPa and psi), gasket width, and the matching ASME flange facing sketches. Some gasket types are defined only by other standards and list no ASME m/y.

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