Pipe Flanges are a mechanical part used to connect two pipes or equipment for sealing and joining. It usually consists of a flange, which is a perforated metal disk, and a flange gasket, which is a sealing material capable of withstanding pressure and temperature. These parts are fastened together by bolts and nuts to form a complete flange connection. A flange connection or flange joint is a detachable connection of flanges, gaskets and bolts connected to each other as a set of combined sealing structures, used for connections between pipe ends, and also used for flanges on the inlet and outlet of equipment, used for connections between two devices. Used for connection between two equipments.