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About This Item

 

Full Description

This Standard Practice covers all stainless steel or stainless steel lined, cast or fabricated bonnetless, flanged knife gate valves in NPS 2 (DN 50) through NPS 36 (DN 900). The valves in this Standard Practice are intended for use in applications where shock loadings are not encountered. Applications at conditions other than those specified in Section 3 require special design considerations.
 

Document History

  1. MSS SP-81-2017


    Stainless-Steel or Stainless-Steel-Lined, Bonnetless, Knife Gate Valves with Flanged Ends

    • Most Recent
  2. MSS SP-81-2013


    Stainless-Steel or Stainless-Steel-Lined, Bonnetless, Knife Gate Valves with Flanged Ends

    • Historical Version
  3. MSS SP-81-2006a

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    Stainless Steel, Bonnetless, Flanged Knife Gate Valves

    • Historical Version
  4. MSS SP-81-2006


    Stainless Steel, Bonnetless, Flanged Knife Gate Valves

    • Historical Version
  5. MSS SP-81-2001


    Stainless Steel, Bonnetless, Flanged, Knife Gate Valves

    • Historical Version
  6. MSS SP-81-1995


    Stainless Steel, Bonnetless, Flanged, Knife Gate Valves

    • Historical Version