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About This Item

 

Full Description

This Standard covers threaded malleable iron unions, classes 150, 250, and 300.It also contains provisions for using steel for NPS 1/8 unions. This Standard includes requirements for design, pressure-temperature ratings, size, marking, materials, joints and seats, threads, hydrostatic strength, tensile strength, air pressure test, sampling, coatings, and dimensions.
 

Document History

  1. ASME B16.39-2019

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    Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300

    • Most Recent
  2. ASME B16.39-2014


    Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300

    • Historical Version
  3. ASME B16.39-2009


    Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300

    • Historical Version
  4. ASME B16.39-1998


    Malleable Iron Threaded Pipe Unions - Classes 150, 250, and 300

    • Historical Version