Flat flange relative to the neck Flange, flat flange according to material can be divided into carbon steel flat flange, stainless steel flat flange and alloy steel flat flange. The structural form of the Flange has integral flange and unit flange. Flange connection is the two pipes, pipe fittings or equipment, first each fixed in a flange, between the two Flange, with Flange pad, bolted together to complete the connection. Some pipe fittings and equipment have their own Flange, also belong to the flange connection. Flange connection is an important connection mode in pipeline construction. The flange connection is convenient to use, can withstand the bigger pressure. Flanged connections are widely used in industrial pipelines. In the home, the pipe diameter is small, and is low pressure, see no flange connection. If you're in a boiler room or a production site, there are flanged pipes and equipment everywhere.