Flange connections involve securing two pipes, fittings, or equipment to each side of a flange, inserting a flange gasket between them, and then tightening them together with bolts to complete the connection. Some fittings and equipment come with a pre-attached flange, which also falls under flange connections. Flange connections are a crucial 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, flanged pipelines and equipment are omnipresent.

According to the connection method, the types of flanges include: flat焊接flange, welding neck flange, welding neck butt welding flange, socket welding flange, threaded flange, flange cover, welding neck butt welding ring loose flange, flat welding ring loose flange, ring groove flange and flange cover, large diameter flat flange, large diameter high neck flange, blind flange, butt welding ring loose flange, etc.