Here in pipeline system, the elbow is to change the pipe direction of pipe fittings. Points, according to the Angle 45 ° and 90 ° 180 ° three most commonly used, according to the requirements of the project also includes 60 °, and other abnormal Angle bend. Elbow materials have cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metal and plastic, etc. With the pipe connection way: direct welding flange connection (most common), hot melt connection, electric melting connection, connection of threaded and socket type, etc. According to the production process can be divided into: welding bend, stamping elbow, pushing system bend, casting bend, butt welding elbow, etc. Other names: 90 degrees bend, right-angle bend, love and bending, etc.

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