Mechanical seal leakage issue
Thread Content
For end-face sealing, there are leakage requirements in China, and it’s very difficult to achieve zero leakage! In the current trend towards environmental protection, dynamic sealing has always been a headache for manufacturers! Old equipment is aging; the shafts have significant deflection, the installation accuracy is insufficient, and leaks are common. What methods are available to address dynamic seal leakage issues nowadays? Can it achieve zero leakage?
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It depends on your sealing surface processing techniques as well as the proper application under operating conditions
It seems that modern mechanical seals can basically achieve zero leakage. How many years have your equipment been in use? There are also leakage standards in foreign countries, I believe.
Achieving zero leakage is very difficult, especially with older equipment; you might try changing from a single-face mechanical seal to a double-face one
Well, yes, I’ve changed many sets before; they started leaking heavily after a short while, and there was quite a lot of vibration
If the process conditions permit, a leak-free magnetic drive pump can be used
The mechanical seal has high installation precision, and poor sealing performance can easily result from improper installation.
It’s actually due to the poor quality of each maintenance task, as well as worn-out components that are still in use despite being outside acceptable parameters.
Is zero leakage difficult? The advantage of mechanical seals is that they can achieve zero leakage; at least visually, no leakage of liquid material can be seen, although slight gas evaporation may occur. Most machine seals these days are modular in design, and they are essentially of a user-friendly type; their installation is very simple, and any mechanic with some experience can handle it – it’s not a difficult task at all.