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About This Item

 

Full Description

1 SCOPE

1.1 This Standard Practice covers the construction requirements for lug- and wafer-type knife gate valves made from ASME Code materials and meeting the applicable gate valve requirements of ASME B16.34.

1.2 This Standard Practice covers flanged body designs compatible with ASME B16.5 flanges for NPS 2 (DN 50) through NPS 24 (DN 600) and ASME B16.47 Series A flanges for NPS 26 (DN 650) through NPS 48 (DN 1200).

1.3 As an alternative to Section 1.1, this Standard Practice also covers valves that do not meet the body wall thickness of ASME B16.34 but shall be qualified by a proof test. The Class 150 and Class 300 dimensional, material, and other requirements of this Standard Practice shall apply to these valves.
 

Document History

  1. MSS SP-135-2016


    High Pressure Steel Knife Gate Valves

    • Most Recent
  2. MSS SP-135-2010

    👀currently
    viewing


    High Pressure Steel Knife Gate Valves

    • Historical Version
  3. MSS SP-135-2006


    High Pressure Steel Knife Gate Valves

    • Historical Version