Flange connections involve securing two pipes, fittings, or equipment to separate flange disks first, then joining the two flange disks together with a flange gasket in between and tightening them with bolts, thus completing the connection. Some fittings and equipment come with flange disks already attached, which also fall under flange connections. Flange connections are an important method of pipeline construction. They are convenient to use and can withstand high pressure. In industrial pipelines and residential settings, where pipe diameters are small and 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, socket焊接ring-type loose flanges, flat焊接ring-type loose flanges, ring groove flanges and flange covers, large diameter flat flanges, large diameter long-neck flanges, winged blind flanges, and socket焊接ring-type loose flanges, etc.