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What Are The Reasons For The Leakage Of Pump Mechanical Seals?
Apr 13, 2018

What are the reasons for the leakage of pump mechanical seals?

There are five main leak points for mechanical seals for pumps:

  1. Sealing between shaft sleeve and shaft

  2. The seal between the moving ring and the sleeve

  3. Sealing between moving and stationary rings

  4. The seal between the stationary ring and the stationary ring seat

  5. The seal between the seal cap and the pump body

Generally speaking, the leakage between the shaft sleeves and the sealed end caps and the pump body is easy to find and solve, but it requires careful observation, especially when the working medium is liquefied gas or high-pressure, toxic and harmful gases, it is relatively difficult some. The remaining leaks are intuitively difficult to distinguish and judge, and on the basis of long-term management and maintenance practices, observations, analyses, and judgments on the symptoms of leakage must be made in order to draw correct conclusions.

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Susie Ding


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