Valve sealing requirements for gasket materials

The requirements of valve sealing for gasket materials are on the valve. The gasket is the main sealing part to prevent the leakage of the medium. It is used to fill the gap between the two joint surfaces (such as the sealing surface between the valve body and the bonnet) of the sealing part factory. The pump mechanical seal has unevenness to prevent the medium from leaking from the joint surface. Gaskets can also be divided into two types: soft and hard. The soft is generally non-metallic, such as cardboard, rubber, asbestos rubber sheet, and fluoroethylene from Poly Four Mechanical Seal Factory; the hard is generally metal or metal-coated asbestos, metal and asbestos wound gaskets. The material of the metal gasket is generally 10 high-quality carbon steel and 1Cr18Ni9 stainless steel, which require high machining accuracy and smoothness, and the strength of strong bolts is also large. Both are used for high temperature and high pressure valves. The valve's requirements for gasket materials are corrosion resistance, while having a certain degree of elasticity and plasticity and sufficient strength at operating temperature to ensure sealing. The reasonable selection of gasket material and type should be determined according to the working conditions of the medium, such as temperature, pressure and corrosiveness. Keywords: seal factory, mechanical seal factory, pump mechanical seal