Mechanical seal is a kind of shaft seal device of rotating machinery. Such as centrifugal pumps, centrifuges, reactors and compressors. Because the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment, and the medium in the equipment leaks out through the gap. If the pressure in the equipment is lower than the atmospheric pressure, the air will leak into the equipment, so there must be a shaft sealing device to prevent the leakage.

 

 

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2021-7-14-DFJerry