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There are many kinds of pipe fittings according to different standards and they are used in different scenarios
Welded pipe fittings
Socket weld pipe fittings
Threaded pipe fittings
Flanged pipe fittings.
1.Welded steel pipe fitting
Welded steel pipe fittings range in butt weld and socket weld.
A welded pipe fitting connected to the pipe by welding is mainly used for connecting with a steel pipe. It is especially suitable for long pipelines, but not convenient for disassembling pipes frequently. It can be soldered or brazed, the latter often used for copper piping. Welded steel pipe fittings include elbow, flange, tee, reducer, head, and other types.
2.Threaded pipe fittings
Threaded pipe fittings are commonly used in water and gas pipes. With a small diameter, including a compressed air pipe and a low-pressure steam pipe. The common materials of threaded pipe fittings have forged steel, cast steel, cast iron, and malleable iron. Threaded pipe fittings mainly include internal pipe, external pipe, live pipe connection, reducer, and so on.
3.Flanged pipe fittings
The flange pipe fitting belongs to the welded pipe fitting. Its material has various kinds, such as carbon steel, alloy steel, stainless steel, and so on.
4.Socket Weld Pipe Fittings
Socket welding is to install the pipe end into the valve body and perform welding. It has a shape similar to the internal thread connection after forming. Socket welding fittings are generally used for small diameters less than or equal to DN40, which is more economical. Butt welding is generally used for DN40 or more.
In pipeline systems, steel pipe fittings play an important role in transporting liquid materials. It is widely applied in oil and gas pipelines, water conservancy science and technology, and other fields. Used to connect, control, change direction, divert, seal, and other functions apart from the straight pipe.