Flange connections involve securing two pipes, fittings, or equipment to each side of a flange disk, inserting a flange gasket between them, and then fastening them together with bolts to complete the connection. Some fittings and equipment come with a built-in flange disk, 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, flange connections are abundant on pipelines and equipment.

Flange connections can be categorized by their connection methods, including: flat焊接板式法兰, welding neck flat 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, winged blind flange, and loose socket welding ring flange, etc.