In the piping system, the elbow is to change the direction of the pipeline fittings. According to the angle, there are 45 ° and 90 ° 180 ° three of the most commonly used, in addition to the needs of the project also includes 60 ° and other non-normal angle elbow.
Elbow materials include cast iron, stainless steel, alloy steel, calcined cast iron, carbon steel, non-ferrous metals and plastics.
With the pipe connection: direct welding (the most commonly used way) flange connection, hot melt connection, electrofusion connection, threaded connection and socket connection.
Stainless steel elbow is different from the carbon steel elbow is mainly the difference in material, the chemical composition contained in the elbow will keep the elbow surface for a long time will not rust, will not be corroded.