Flange connection means that two pipes, fittings or equipment are first fixed on a flange, and flange plates are used between the two flange plates to fasten them together with bolts to complete the connection. Some fittings and fixtures have their own flanges and are also flanged. Flange connection is an important connection method for pipeline construction. The flange connection is easy to use and can withstand greater pressure. In industrial pipes, in the home, the diameter of the pipe is small, and it is low pressure, and the flange connection cannot be seen. If in a boiler room or production site, there are flanged pipes and equipment everywhere.
According to the type of connection flange connection can be divided into: plate type flat welding flange, with welding neck flange, with neck butt welding flange, socket welding flange, threaded flange, flange cover, with neck pair Welding ring loose flange, flat welding ring loose flange, ring groove flange and flange cover, large diameter flat flange, large diameter high neck flange, eight-character blind plate, butt weld ring loose flange, etc. .
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