The elbow plays a very important role in the pipeline system under pressure. Not only can the pipeline direction be changed in the pipeline system, but also it can increase the flexibility of the pipeline, reduce the vibration of the pipeline, and reduce the binding force of the pipeline. And can play a certain role in compensating for thermal expansion, so the elbow is a very important part of the pipeline under pressure. The elbow is at the point of maximum stress in the pipeline and is therefore the most vulnerable part of the pipeline. The elbow plays a role in changing the direction of the pipeline in the pipeline.
According to the angle, there are common 45 ° elbows, 90 ° elbows, etc. There are also some uncommon angle elbows such as 60 ° elbows. Due to different pipeline requirements, the angles of the elbows are also different.
According to the material, there are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. According to the way of connecting with the pipe, there are direct welding, flange connection, hot melt connection, electric fusion connection, screw connection and socket connection.
According to the production process, there are welding elbows, stamping elbows, push elbows, casting elbows, etc.
Divided according to the radius of curvature, there are long radius elbows and short radius elbows (long radius elbows mean that its radius of curvature is equal to 1.5 times the outer diameter of the pipe; short radius elbows mean that its radius of curvature is equal to the outside diameter of the pipe.
Divided according to different shapes and uses, there are ferrule elbows, double bearing elbows, flange elbows, reducer elbows, dead elbows, internal and external tooth elbows, stamping elbows, push elbows, socket Elbow, butt welding elbow, inner wire elbow, etc.
