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Mechanical seal of the three kinds of cleaning method

by:Lepu Seal     2021-01-05
Mechanical seal of the three kinds of cleaning method - 2020 8 - With three kinds of cleaning method is the mechanical seal, so what are the three way? Below small make up to introduce for everybody. First, external flushing external flushing is alternative of process system pressure is higher than the sealing medium, the temperature is lower than the mechanical seal medium, and compare the rinses clean liquid, to flush sealed cavity, requires the selected rinses after entering medium does not affect the product quality and quality. External flushing is a method of using multiple in flushing, commonly used in the medium containing particles and more impurity seal, the other set rinses system, equipment complex, increase the cost, only in the medium sealing is very strict, choose the appropriate rinses from process system, is a plus flushing method is simple and reliable, but in the process system is to seal medium with optional rinses. Using external flushing, as long as the rinses properly selected, reasonable structure design, can greatly improve the mechanical seal life. Second, wash their own flush refers to the medium introduced by pump export or high pressure side, directly into the pump chamber after washing friction pair. Its flushing method is simple, but can only be used under the condition of the medium is clean. Third, backwashing so-called reverse flushing is to seal cavity medium leads to the pump inlet side, constantly updated by the media in seal chamber to prevent medium particles, impurities precipitation, make the friction pair of premature failure.
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