In the piping system, elbows are pipe fittings that change the direction of the pipe. 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, love elbow, etc.

Elbow is a commonly used connecting pipe fitting in plumbing installation, used for connection at the bend of the pipe to change the direction of the pipe.

Other names: 90° elbow, right angle elbow, love elbow, stamped elbow, pressed elbow, machine elbow, welded elbow, etc.

Uses: A commonly used connecting pipe fitting in pipeline installation, connecting two pipes with the same or different nominal diameters, so that the pipeline can be turned at 90°, 45°, 180° and various degrees, with a nominal pressure of 1-1.6Mpa.

The bending radius is less than or equal to 1.5 times the pipe diameter and is an elbow, while the bending radius is greater than 1.5 times the pipe diameter and is a pipe bend.