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Types of Fittings Used in Pipes

Jul. 09, 2020

What is pipe fittings?

Pipe fittings are pipe components that help to change the flow direction, such as elbows and tees. Change the size of the pipe, such as reducer, reducer tee. Connect different parts, such as a coupling, and stop the flow, such as a lid.

Different types of pipe fittings are used in the pipeline. The pipe fittings used in pipeline engineering mainly include elbows, tees, reducers, unions, couplings, tees, pipe caps, swage joints, plugs, bushings, expansion joints, joints, and pipe stands ( Welded branch pipes, socket branch pipes, elbows, threaded branch pipes, ferrules, risers, socket branch pipes), traps, long radius elbows, flanges and valves.

These standard accessories are either forged or forged. Only seamless tubes are used to produce forged parts. Large-diameter welding fittings are made of steel plates.

These accessories can be used for different types of end connections.

Pipe Elbow

The elbow is more versatile than any other fitting. It provides the flexibility to change the direction of the pipeline. There are two standard types of elbows: 90°and 45°. However, it can be cut to any other degree. There are two types of elbow radius, short radius (1D) and long radius (1.5D).

90 degree elbow

Install 90-degree elbows between the pipes to change the direction of the pipes by 90 degrees. There are two forms of long radius and short radius.

90 Degree Elbow

45 degree elbow

Install a 45 degree elbow between the pipes to change the direction of the pipe by 45 degrees.

Long radius elbow

In a long radius elbow, the radius of the centerline is 1.5 times the nominal size of the pipe, or 1.5 times the diameter of the pipe. Normally, long radius elbows are used in pipelines because the pressure loss is smaller than short radius elbows. It requires more space than short radius elbows.

Short radius elbow

In short radius elbows, the centerline radius is the same as the nominal size of the pipe, or it can be said to be twice the diameter of the pipe. The short radius elbow is suitable for occasions with limited space. However, due to the sudden change of flow direction, its pressure drop is very high.

Reducing elbow

The design purpose of the 90-reduced elbow is to change the direction and reduce the pipe size in the pipe system. Reducing elbows eliminates the need for a pipe fitting and reduces the amount of welding by more than a third. In addition, the gradual reduction of the diameter of the entire arc section of the reducing elbow provides lower flow resistance and reduces the effects of water turbulence and potential internal corrosion. These characteristics prevent large pressure drops in the pipeline.

The above information is provided by cheap pipe elbow suppliers.

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