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MSS SP-148-2023
Low Pressure Flanged or Lugged Carbon Steel and Iron or Ductile Iron, Cast or Fabricated, Bonnetless, Knife Gate Valves without Liners
This Standard Practice covers carbon steel, iron or ductile iron, cast or fabricated, bonnetless, unlined knife gate valves with flanged or lugged ends (except no cast iron lugged) from size NPS 2 (DN 50) through NPS 60 (DN 1500).
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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]
