What Is A Pipe Coupling?

A pipe coupling (or coupler) (used in piping or plumbing) is a very short length of pipe or tube, with either socket or female threads at one or both ends that allows two pipes or tubes of equal or different sizes to be joined together. Couplings are pipe fittings that help to extend or terminate pipe runs. These fittings are also used to change pipe size. It's also used to repair a broken or leaking pipe.

Most pipe installations require several lengths of pipe to be joined together or cut to facilitate changes in direction and crossing of obstacles. This requires a fairly quick method of connecting the pipe sections while maintaining the integrity of the pipes in the process. A pipe coupling is a pipe fitting used to join two or more pipes in such a way that continuity is maintained between them.

The body of a pipe coupling is typically made of either the same or similar materials as that of the pipes it joins. They may be rigid or flexible depending on the amount of movement the pipe is subjected to and may also be permanent or removable. A pipe coupling can be increased or reduced in internal diameter to join pipes of different sizes, be T or cross-shaped to join more than two pipes, or angled to form bends. 

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Threaded Pipe Coupling Types:

Full Merchant Coupling

Full merchant coupling is used for connecting small bore pipes. It used to connect pipe to pipe or pipe to swage or nipple. It is threaded ends types. If the two ends of a coupling are different (e.g. one BSP threaded and one NPT threaded), then it is usually referred to as an adapter.

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Half Merchant Coupling

Half merchant coupling is used for small bore branching from a vessel or large bore pipe. It is also threaded ends types. Half coupling is shorter than full coupling.

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Reducing Coupling

Reducing coupling is used to connect pipes of dissimilar diameters. A reducing coupling has two different sizes of threads on each side. An example is a 3/4" NPT to 1/2" NPT coupling. Reducing couplings are typically used where small process feeder lines are joined into large supply circuits or where small diameter fittings are installed. 

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Pipe Coupling Application:

There is no limit to pipe fitting applications as long as there is no limit to valve applications. As the scope of piping uses continues to grow, its strength, versatility, very strong flow rates, and high chemical tolerance are ideally suitable qualities for the transport or conversion of liquids, steam, solids, and air from one stage to the next. Pipe couplings are used to connect even two pipes easily. And though providing secure, robust seals, pipe couplings do have flexible joints that do not require any special equipment to be used.

Wherever pipe networks can be found pipe couplings are used. They are used in firefighting, heating, air supply/removal, and sea/freshwater storage on ships and in offshore. Going back to land, pipe couplings are used for cooling return tanks, lubrication tanks, compressed air tubes, and firefighting tubes in power plants. So that’s not ending there. Often used in plant maintenance, power plants, water and gas delivery facilities, manufacturing, structural engineering, architecture works, and other equipments are pipe couplings.

Pipe Coupling Manufacturer / Supplier

Hebei Sanvo is a quality pipe coupling manufacturer and supplier in China and it has its own factory, company, and it integrates production, sales, and processing. Our pipe couplings are threaded couplings made of high-quality carbon steel and stainless steel, and there are carbon steel pipe coupling, stainless steel pipe coupling. The finish of pipe coupling is galvanized or black, so, there are galvanized pipe coupling and black pipe coupling.

At the same time, Hebei Sanvo is a quality pipe fittings manufacturer and supplier, in addition to pipe couplings, we produce pipe nipples and stainless steel threaded pipe fittings, including carbon steel pipe nipples and stainless steel pipe nipples, galvanized pipe nipples, black pipe nipples, threaded elbows, threaded tees, pipe caps, pipe plug, pipe unions, and lock nuts, etc. Our pipe products have prices that you can afford. If you are just interested in our pipe products, please do not hesitate to click here for more information.

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