Gate valve middle port gasket

Gate valve middle port gasket is a kind of sealing spare parts used in machinery, equipment and pipelines as long as there is fluid. It uses internal and external materials for sealing. Gaskets are made of metal or non-metal plate-like materials through cutting, stamping or cutting processes, and are used for sealing connections between pipes, and sealing connections between parts of machinery and equipment. According to the material, it can be divided into metal gaskets and non-metal gaskets. There are copper gaskets, stainless steel gaskets, iron gaskets, aluminum gaskets and so on. Non-metallic asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, etc. Pressure fluctuation, temperature change, relaxation of bolt preload, flange inclination, dislocation, defects of sealing surface, and corrosion of medium will all have a great impact on the sealing effect.