In the piping system, elbows are pipe fittings that change the direction of the pipeline. According to the angle, there are three most commonly used elbows: 45°, 90°, and 180°. In addition, according to the needs of the project, there are other non-normal angle elbows such as 60°. The materials of elbows include cast iron, stainless steel, alloy steel, forgeable cast iron, carbon steel, non-ferrous metals and plastics.
The ways to connect with the pipe are: direct welding (the most common way) flange connection, hot melt connection, electric fusion connection, threaded connection and socket connection. According to the production process, it can be divided into: welded elbow, stamped elbow, push elbow, cast elbow, butt welding elbow, etc. Other names: 90 degree elbow, right angle elbow, etc.
