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Mechanical
Seals
Mechanical seals are used to retain a high pressure liquid inside a
chamber at a shaft entry point. There are usually a minimum of two
active components – the stationary seal and the rotating
seal. Between these two parts there is a thin layer of liquid
– either the process fluid or some other flushing fluid. If
the thin layer is two thin then the surfaces come into contact and the
seal fails. If the layer is too thick then there is excessive leakage
from the seal.
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