Gasket sealing occupies a very important position in modern industrial enterprises. The quality of the seal is directly related to the continuous production, property safety, energy saving and environmental protection, and people's physical and mental health. Therefore, the development of gaskets has received more and more attention from people. . With the rise of modern industry, especially modern petroleum, chemical industry, atomic energy industry, and large-scale power stations, pressure vessels have developed in the direction of high temperature, high pressure, high vacuum, cryogenic and large-scale, multiple series, and new requirements for gasket seals have been continuously raised A variety of new materials and new structures continue to appear, and their sealing performance is also very different. In addition, pressure fluctuations, temperature changes, loosening of bolt pre-tightening forces, tilting and misalignment of flanges, defects in sealing surfaces, and corrosion of the medium will have a great impact on the sealing effect. Therefore, how to choose the right gasket and how to install it properly according to the working conditions is the key to ensuring the sealing effect.
