hreaded Steel Pipe Fittings

hreaded Steel Pipe Fittings

Threaded Steel Pipe is used to transport a variety of gases and liquids. The threaded steel pipe, alone, cannot direct the materials it transports without the help of additional devices, such as threaded fittings. It is used in low-cost applications such as domestic water, fire protection, and industrial cooling water systems. Threaded fittings assist in regulating flow direction, as well as restricting the movement of the materials, both temporarily or permanently.

Threaded fittings are typically designed for use with smaller threaded pipes. Threaded fittings can be made from different materials, so they can be used with a variety of threaded pipe, threaded steel pipe, and threaded PVC pipe. They are usually made of cast gray or malleable iron, cast brass or bronze, forged alloy, and carbon steel.

The term [threaded" refers to the thread pattern, or screw pattern, of the threaded pipe or threaded fitting. These thread patterns are designed based on predetermined specifications. The most common thread pattern is the NPT or the National Pipe Thread. Some other threaded fitting categories available are: couplings, plugs, screw plugs, nipples, hose nipples, crosses, caps, elbows, reducers, nuts, tees, unions, and arches.

The plug or cap seals the end of the pipe, while the coupling joins two pipes. The union is used during installation or maintenance, and the elbow makes varying degrees of changes in direction. The tee and the cross make branches from the main run. And, the bushing can be used to reduce the size of a threaded fitting. Some fittings are offered with galvanized coating.