Pipe coupling (copper sweat)

In piping and plumbing, a coupling (or coupler) is a very short length of pipe or tube, with a socket at one or both ends that allows two pipes or tubes to be joined, welded (steel), brazed or soldered (copper, brass etc.) together.

Alternatively, it is a short length of pipe with two female National pipe threads (NPT) (in North American terms, a coupler is a double female while a nipple is a double male) or two male or female British standard pipe threads.

If the two ends of a coupling are of different standards or joining methods, the coupling is called an adapter.[1] Examples of adapters include one end BSP threaded with the other NPT threaded, and one end threaded with the other a plain socket for brazing.

A coupling whose ends use the same connection method but are of different sizes is called a reducing coupling or reducer. An example is a 3/4" NPT to 1/2" NPT coupling.[2]

See also

References

  1. ↑ "Fitting | Definition of Fitting by Merriam-Webster". 2016-01-29. Retrieved 2024-01-17.
  2. ↑ "acquisition Hage Haustechnik in Germany". aalberts.com. Retrieved 2024-01-17.

Further reading

  • ASME B1.20.7 Hose Coupling Screw Threads, Inch. (Quote: The normal sequence of connections, in relation to the direction of flow, is from an externally threaded nipple into an internally threaded coupling)

External resources

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.