MSS SP 149
Preformed Elastomeric and Polytetrafluoroethylene (PTFE) V-Ring Packing Sets for Waterworks Valves
| Organization: | MSS |
| Publication Date: | 1 January 2015 |
| Status: | inactive |
| Page Count: | 10 |
scope:
This Standard Practice establishes material, surface finish, dimensional, and testing requirements for preformed V-ring packing sets, packing chambers, and valve stems.
This Standard Practice applies to homogeneous elastomeric and
polytetrafluoroethyl
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