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MSS SP-143-2018

Live-Loaded Valve Stem Packing Systems
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MSSA SP-143-2018 establishes the minimum requirements for the application, design and installation of live-loaded stem packing systems for valves designed in accordance with ASME B16.34, having rising and/or rotating stems. It applies to valves with flexible graphite, polytetrafluoroethylene (PTFE), expanded polytetrafluoroethylene (ePTFE), or other packing stem seal material, regardless of frequency of operation.
SDO MSS: Manufacturers Standardization Society
Document Number SP-143
Publication Date Jan. 1, 2018
Language en - English
Page Count 18
Revision Level
Supercedes
Committee
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