The difference between elbow and bend in manufacturing process

　　Elbow is a common connection pipe fitting in engineering installation, which is used for the connection at the bend of the pipeline and to change the direction of the pipeline. It is used to connect two pipes with the same or different nominal diameters, so that the pipes can make turns of 90 °, 45 °, 180 ° and various degrees.

　　1. Elbows are shorter than elbows When r = 1-2 times, it is an elbow, and the larger multiple is called an elbow.

　　2. The cold bend can be bent by the ready-made straight pipe bender, and the secondary anticorrosion is not needed for the completion of one time. But the elbows should be made to order, anti-corrosion and long ordering cycle.

　　3. The price of the elbow is higher than that of the elbow, but the cost performance is much higher than that of the elbow. The elbow without anti-corrosion treatment is easy to be damaged. However, because of its low price, it is widely used in some projects with low requirements. Therefore, it is necessary to pay attention to the selection when the performance and price of elbows and elbows are different.