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About This Item

 

Full Description

This Standard applies to new construction and covers pressure.temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated flanged, threaded, and welding end and wafer or flangeless valves of steel, nickel-base alloys, and other alloys shown in Table 1. Wafer or flangeless valves, bolted or through-bolt types, that are installed between flanges or against a flange are treated as flanged-end valves. Alternative rules for NPS 2 1/2 and smaller valves are given in Mandatory Appendix V.
 

Document History

  1. ASME B16.34-2020


    Valves - Flanged, Threaded and Welding End

    • Most Recent
  2. ASME B16.34-2017


    Valves - Flanged, Threaded and Welding End

    • Historical Version
  3. ASME B16.34-2013


    Valves - Flanged, Threaded and Welding End

    • Historical Version
  4. ASME B16.34-2009

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    Valves Flanged, Threaded and Welding End, Includes Supplement (2010)

    • Historical Version
  5. ASME B16.34-2004


    Valves Flanged, Threaded and Welding End

    • Historical Version
  6. ASME B16.34-1996


    Valves - Flanged, Threaded, and Welding End - Includes 1998 Addenda

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. ASME B16.34-2009 Supplement


    Supplement to Valves Flanged, Threaded and Welding End