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Half Coupling

Half Coupling

A coupling is a connector used to screw two pieces of pipe together using threaded rings. Half-couplings are only threaded at one end. The other end is welded or otherwise fastened to the piping. Hoses are readily identifiable objects that connect using a half coupling.

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half coupling

A coupling is a connector used to screw two pieces of pipe together using threaded rings. Half-couplings are only threaded at one end. The other end is welded or otherwise fastened to the piping. Hoses are readily identifiable objects that connect using a half coupling. The threaded end is screwed onto a faucet, while the other end is clamped onto the hose. With piping, one end of a half-couple is screwed onto the pipe, while the other end is made to be tightly inserted, or welded, onto the other end. Half-couplings come in male and female varieties.


The male half-couplings have external threads that the pipe fits over. Female half-couplings have internal threads. The piping is inserted and twisted to secure the connection. Half-couplings are widely used in the aerospace industry as connectors to pressurized fuel piping. Various space shuttles have often had their launches delayed due to a half-coupling which needed closer inspection for safety reasons.

half coupling

imageSfenry 3000 LB Stainless Steel Female NPT Threaded Half Coupling


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