A flange is a disc-shaped part that is common in plumbing engineering. Flanges are used in pairs. In wear-resistant ceramic pipeline engineering, flanges are mainly used for wear-resistant ceramic pipeline connections. In wear-resistant ceramic pipes that need to be connected, various flanges can be installed. Wire flanges can be used for low-pressure wear-resistant ceramic pipes, and welded flanges can be used for pressures above 4kg. A flange connection is to fix two wear-resistant ceramic pipes, pipes, or equipment on a flange plate, and there is a flange gasket for sealing between the two flanges.
The flanges used in wear-resistant ceramic pipes are mainly divided into welding flanges and movable flanges
1. Welded flange: directly welded to the pipeline, the flange is fixed and inactive;
2. Movable flange: first put the movable flange on the wear-resistant ceramic pipe, and then weld the retaining ring on the port of the wear-resistant ceramic pipe.
There are many flange standards for the same steel pipe size and thickness, and the influencing factors are flange diameter, flange thickness, center spacing of flange bolt holes, number of flange holes, flange bolt diameter, etc. When welding flanges with ceramic elbows, it is necessary to determine the position of the flange holes. If the flange expands, pay attention to the size range of the flange sealing ring, which cannot exceed the specification of the sealing ring, otherwise, it cannot be sealed.