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The development of modern industrial technology and sealing technology has made the use of pumps widely used in power, chemical, petroleum, and other industries. The sealing reliability of pumps is higher and stricter. The leakage of the sealing system of the pump will seriously affect the normal operation of the equipment. In particular, the development of high-temperature and high-pressure pumps makes the sealing requirements stricter. The pump seal can be divided into two types, one is the single-sided seal (concentric shaft and oval shaft) and the other is double-side seal (non-concentric shaft). The leakage of the sealing system of the pump will seriously affect the normal operation of the equipment. In particular, the development of high-temperature and high-pressure pumps makes the sealing of pumps more strict.