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About This Item

 

Full Description

This Standard for gray iron threaded fittings, Classes 125 and 250, covers

(a) pressure-temperature ratings

(b) sizes and method of designating openings of reducing fittings

(c) marking

(d) material

(e) dimensions and tolerances

(f) threading

(g) coatings

Mandatory Appendix I provides table values in U.S.

Customary units.

 

Document History

  1. ASME B16.4-2021


    Gray Iron Threaded Fittings: Classes 125 and 250

    • Most Recent
  2. ASME B16.4-2016


    Gray Iron Threaded Fittings: Classes 125 and 250

    • Historical Version
  3. ASME B16.4-2011


    Gray Iron Threaded Fittings: Classes 125 and 250

    • Historical Version
  4. ASME B16.4-2006

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    Gray Iron Threaded Fittings, Classes 125 and 250

    • Historical Version
  5. ASME B16.4-1998 (R2006)


    Gray Iron Threaded Fittings

    • Historical Version