time：2022-09-03
views：3315
What are the causes of mechanical seal leakage in operation of multi-stage centrifugal pump?
(1) The sealing faces are not parallel.
(2) The shaft or shaft sleeve is worn.
(3) The pump shaft is bent.
(4) The end faces of dynamic and static sealing rings are corroded, worn or scratched.
(5) The assembly of the stationary ring is inclined.
(6) Tension spring pressure is lacking.
(7) The axial displacement is too large.
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