Flange (Flange), also known as flange or flange disc. A flange is a part that interconnects a tube to a tube and is connected to a tube end. Flange connection or flange joint is defined by the flange, gaskets and bolts are interconnected as a group of a combination of the seal structure of the detachable connection, the pipeline flange pipe means the pipe used in the flange used in equipment On the import and export of equipment refers to the flange. There are holes in the flange, the two bolts to tighten the flange. Between the flange gasket seal. Flange threaded connection (wire connection) Flange and welding flange.