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Home < Events < 2012
Brief analysis the causes of mechanical seal leakage suddly for centrifugal pumps
2012-06-24
Centrifugal pump in the process of operation, by reason of mechanical seal aging and wear, and appear sudden leakage is very rare.More cases, centrifugal pump mechanical seal was caused by workers improper operation, maintenance, or working conditions change occurs sudden leakage around.
The causes for the leakage of centrifugal pump with mechanical seal suddenly:

1.Centrifugal pump seal longer pressure-out, is subject to a certain degree of damage, likely leak problem.Centrifugal pump fit and the root cause of the corrosion is also similar to leak problem.

2.The failure of mechanical seal also may be due to the small centrifugal pump's actual output, and makes a lot of liquid medium cycle makes a dramatic rise in the temperature within a centrifugal pump, and then vaporize liquid medium, caused by the failure of mechanical seal.

3.The centrifugal pump back flow is big can cause the damage of the mechanical seal.Centrifugal pump flow back more than expected value, will bring up the sediment of suction side at the bottom of the container, after sediment into the centrifugal pump damage mechanical seal, causing them to leak.

4.If a centrifugal pump is not in the running state for a long time, start again without using manual turning, as a result of the mechanical seal friction pair of adhesion is also one of the sealing surface damage causes of mechanical seal.

5.The material of mechanical seal and poor compatibility between working medium, medium corrosive, polymerized or glue sex is strong, also can damage the sealing surface of mechanical seal, cause leakage.

6.Mechanical seal working environment temperature changes too fast, the working condition of too frequent and sudden stop will cause the leakage.

Sudden failure in operation of mechanical seal of centrifugal pump and leakage will cause greater damage to machinery and equipment, and even cause safety accidents, so keep regular inspection on centrifugal pump mechanical seal, and ensure the correct operation, to take effective measures to reduce the above case.

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