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SP-149-2018
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SP-149-2018

Preformed Elastomeric and Polytetrafluoroethylene (PTFE) V-Ring Packing Sets for Waterworks Valves

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 polytetrafluoroethylene (PTFE) V-ring packing for gray iron and ductile iron quarter-turn and multi-turn valves for waterworks applications with a maximum service temperature of 150 °F (66 °C).

     


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December 7, 2019

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