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About This Item

 

Full Description

MSS SP-146-2019 covers the construction requirements for high pressure, lug-, wafer-, and flange-type iron and ductile iron knife gate valves.

This Standard Practice covers flanged body designs compatible with the following ASME standardized flanges:
  • (a) B16.1, Class 125 flanges for sizes NPS 2 (DN 50) through NPS 60 (DN 1500);
  • (b) B16.1 Class 250 flanges for sizes NPS 2 (DN 50) through NPS 48 (DN 1200);
  • (c) B16.42 Class 150 and 300 flanges for sizes NPS 2 (DN 50) through NPS 24 (DN 600).
 

Document History

  1. MSS SP-146-2019

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    High Pressure Knife Gate Valves: Iron and Ductile Iron, Lug-, Wafer-, and Flange-Type

    • Most Recent
  2. MSS SP-146-2014


    High Pressure, Lug- and Wafer-Type, Iron and Ductile Iron Knife Gate Valves

    • Historical Version