Casting flange is a common flange process, which has the advantages of high production efficiency and low production cost, and is suitable for medium and low pressure pipelines. It is recommended to use forged flange in the pipeline under high pressure. The sealing surface of casting flange can be divided into plane (FF), raised surface (RF), concave convex surface (MFM), tenon groove surface (TG) and ring connection surface (RJ). Common pressure grades: pn6, PN10, PN16, PN25, PN40, pn64, PN100, pn160
Integral flange unit flange a, threaded flange B, welding flange butt welding flange neck flat welding flange neck socket welding flange plate flat welding flange C, loose flange butt welding ring loose flange butt welding ring loose plate flange flat welding ring loose plate flange plate over loose flange D, flange cover (blind hole flange)
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