Flange connections involve securing two pipes, fittings, or equipment individually to flange disks, then joining the two disks together with a flange gasket and bolts, completing the connection. Some fittings and equipment come with a built-in flange disk and are also considered flange connections. Flange connections are an essential method in pipeline construction. They are convenient to use and can withstand high pressure. In industrial pipelines and residential settings, you may not see flange connections when the pipe diameter is small and the pressure is low. However, in boiler rooms or production sites, flange connections are prevalent throughout the pipelines and equipment.

Flanged connections can be categorized by their connection methods, including: flat焊接flanges, socket焊接flanges, blind焊接flanges, lug焊接flanges, threaded flanges, flange covers, socket welding ring loose flanges, flat welding ring loose flanges, ring groove flanges, and flange covers, large diameter flat flanges, large diameter high neck flanges, T-shaped blind flanges, and socket welding ring loose flanges, etc.