Flange connections involve securing two pipes, fittings, or equipment to separate flange plates first, then adding a flange gasket between the plates and fastening them together with bolts, thus completing the connection. Some fittings and equipment come with a built-in flange plate, which also falls under 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, where pipe diameters are small and the pressure is low, flange connections are not visible. However, in boiler rooms or production sites, you will find flange connections on pipes and equipment everywhere.

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, ring-type loose flanges with neck and blind焊接, flat ring loose flanges, ring groove flanges and flange covers, large diameter flat flanges, large diameter high-neck flanges, blind flanges with bevel, and blind焊接 ring loose flanges, etc.