LAP JOINT/LJ FLANGE is also called flange. It’s a part of the tube that connects with the tube. Connect to pipe end. There are holes on the flange, and bolts can be worn to make the two flanges tightly connected. The flange is sealed with gasket. Flange pipe fittings refers to the fittings with flange (flange or adapter). It can be made by casting or by screw connection or welding. Flange (joint) consists of a pair of flanges, a gasket and several bolts and nuts. The gasket is placed between the two flange sealing surfaces. After the nut is tightened, the specific pressure on the gasket surface reaches a certain value, which causes deformation, and fills the uneven parts on the sealing surface, so that the connection is tight. Some pipe fittings and equipment have their own flange, which also belongs to flange connection. Flange connection is an important way of pipeline construction.
Flange connection is easy to use and can bear large pressure. Flange connection is widely used in industrial pipeline. In the home, the diameter of the pipe is small, and it is low pressure, and the flange connection is invisible. If in a boiler room or production site, there are flange connected pipes and equipment everywhere.
Generally speaking, the function of flange is to fix and seal the joint of pipe fittings.
