A brief introduction to the 180 degree elbow

A brief introduction to the 180 degree elbow

The 180° elbow is a metal fitting that changes the direction of the pipe in a carbon steel pipe.The connection mode is wire buckle and welding.According to the Angle, there are 45° and 90° 180° three commonly used, and according to the needs of the project, there are also 60° and other abnormal Angle elbows.Elbow materials include cast iron, stainless steel, alloy steel, malleable iron, carbon steel, nonferrous metal and plastic, etc.In the way of pipe connection, direct welding is also commonly used, method connection, hot melt connection, electric fusion connection, threaded connection and socket connection is the connection.According to the production process can be divided into: welding elbow, stamping elbow, push elbow, casting elbow, other names: 90° elbow, right Angle bend and so on.

The 180° elbow is firstly divided into long radius elbow and short radius elbow according to its radius of curvature.A long radius elbow is one whose radius of curvature is equal to 1.5 times the outside diameter of the pipe, i.e. R=1.5D.A short radius elbow is one where the radius of curvature is equal to the outside diameter, i.e. R=1.5D. (D is the elbow diameter and R is the radius of curvature.D can also be written as a multiple.)According to the pressure grade, there are about 17 kinds, and the American pipe standard is the same, SCH5S, SCH10S, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS;SCH80, SCH100, SCH120, SCH140, SCH160, XXS, among which STD and XS are commonly used.According to the Angle of elbow, there are 45° elbow, 90° elbow, and 180° elbow.

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The forming process of stamping elbow mainly has the following aspects

No pipe billet is needed as raw material, the mould cost of pipe making equipment can be saved, and the push-making elbow with arbitrary large diameter and relatively thin wall thickness can be obtained.The raw material of this stamping elbow is relatively special, and it is not necessary to add the raw material of pipe billet, so it is easy to control during processing.

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