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About This Item

 

Full Description

This Standard Practice establishes material and dimensional requirements for valve packing, packing chamber, packing gland, packing washer, bonnet, and the stem, as they relate to the total packing assembly.
 

Document History

  1. MSS SP-120-2024


    Flexible Graphite Packing Sealing for Rising Stem Valves

    • Most Recent
  2. MSS SP-120-2017


    Flexible Graphite Packing System for Rising Stem Steel Valves

    • Historical Version
  3. MSS SP-120-2011

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    Flexible Graphite Packing System for Rising Stem Steel Valves - Design Requirements

    • Historical Version
  4. MSS SP-120-2006


    Flexible Graphite Packing System for Rising Stem Steel Valves - Design Requirements

    • Historical Version
  5. MSS SP-120-2002


    Flexible Graphite Packing System for Rising Stem Steel Valves - Design Requirements

    • Historical Version
  6. MSS SP-120-1997


    Flexible Graphite Packing System for Rising Stem Steel Valves (Design Requirements)

    • Historical Version