MSS SP-143-2018
$36.40
Live-Loaded Valve Stem Packing Systems
| Published By | Publication Date | Number of Pages |
| MSS | 2018 | 18 |
Full Description
MSS 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.
This Standard Practice does not apply to valves that include a lantern ring(s) as part of its packing system or to self-energized packing.
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