Large flanged pipe fittings refers to the pipe or equipment connecting flanged pipe fittings whose pressure can be above 10Mpa. Most of them are butt welding flanged pipe fittings. Large flanged pipe fittings can be divided into traditional large flanged pipe fittings and self-tightening large flanged pipe fittings, and traditional large flanged pipe fittings. Butt welding flange pipe fittings products, for example, it is to use the seal came to hot plasticity deformation of the flange pipe flange pipe sealing effect between now and the connection method with other flange pipe butt welding, the same cohesion in the pipe end to join each other make the tube is tube, a stud to two flange fitting tightly connect together; Self-tightening type large flange pipe fitting is formed by the elastic deformation of the sealing lip of the new sealing relying on the sealing ring, which is attributed to a hard sealing which has a good sealing and can reinforce the pipe function.

First of all, large flanged pipe fittings should be strong enough, not deformation when fastening. The sealing surface of flange pipe fittings should be flat and clean. Carefully arrange oil and rust stains during installation. Large flanged pipe fittings are easy to connect and can withstand great pressure. Flanged fittings are widely used in industrial piping. In the home, the pipe diameter is small, and is low pressure, can not see flange fitting connection. If you are in a boiler room or on a production site, there are pipes and devices connected by flanged fittings everywhere.

Secondly, large flange gaskets should have good oil resistance and performance, as well as better elasticity and mechanical strength. Sealing gaskets of different sections and sizes should be selected according to the shape of the joint and placed correctly.