Flange (Flange) also known as flange or flange plate. Pipe and pipe flange is connected to the parts, connected to the pipe end. Flange connection or flange connection, is defined by flanges, gaskets and bolts as a group of three interconnected combination of a removable sealing structure connected to the plumbing pipe flange means in the piping flanges, used in equipment flange means on the import and export facilities. There are holes on the flange, flange bolts so that the two closely connected. Between the flanges with the gasket seal. Flange sub-thread connection (wire connected) flange and welding flange.