The flange is to mounted two pipes, pipe fittings or equipment on a flange, and between the two flanges, and the flange pads are fastened together by bolts to complete the connection.
According to the connection type of flange connection, it can be divided into: plate type flat welding flange, neck flat welding flange, neck butt welding flange, socket welding flange, thread flange, flange cover, loose flange, flat welding ring loose flange, ring groove flange and flange cover, large diameter flat flange, large diameter high neck flange, eight-word blind plate, butt weld ring loose flange, etc.
