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Forged Steel

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  • Forged Steel Couplings conform to ASTM A105 and ASME SA105.
  • Stocked in sizes from 1/8" to 4".
  • Both Threaded and Socket Weld Forged Steel Couplings are available.

Five different sizes of Forged Steel Couplings Sizes are Nominal Pipe Size (NPS) - size chart
Two different sizes of Forged Steel Couplings.
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Domestic = Made in the USA

Import = Made anywhere else

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Class for pipe fittings is a standard defined by the ASME/ASTM. Though stated with a # sign, such as 150# or 3000#, it is not a direct pressure rating.  The pressure rating is dependent on material and temperature and is found by consulting an appropriate reference guide.

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Threaded couplings go on threaded pipe. Socket Weld couplings go on plain end pipe.

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Full couplings are intended to join two pieces of pipe together. Half couplings are used to make a branch connection instead of using a sockolet or thredolet.


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