How To Keep Your Mechanical Seals From Failing

Mechanical seals are very beneficial in different applications including use in pumps. But if you have noticed that your seals seem to fail often and faster for that matter, there could be things you are doing wrong. The fails could be as a result of the installation and selection errors or they could also be as a result of poor handling of the seals. By paying close attention to the selection, installation and operations you should be able to keep the fails minimal.

1. Never allow your pump to run dry

When you allow the pump to run dry, then you risk damaging the mechanical seal that is in place. The mechanical seals experience thermal shock and shatter in a few seconds and it is therefore important to ensure that the pump is running under the right conditions to prevent this kind of occurrences.

2. Find ways to reduce vibration

Pump vibration is another cause for seal fails. The vibration can result from improper alignment, pump imbalance and operating the pump on BEP that is too far off left or right on performance curve. When it occurs then it ends up hurting equipment and damaged seals or shortened life of the seal is what you have as your results.

3. Do not hammer couplings onto the shaft mechanical seal manufacturer 

Hammering is the worst thing you can do with your mechanical seals. The seal faces are fragile and when you pound couplings onto your pump shaft, then you will definitely end up damaging the mechanical seal. Use alternative means to place the couplings so that the seal can remain intact and in top shape.

4. Know how to operate your pump

Improper handling of the pump will in most cases trip the motor and twist the shaft that causing orbital movement that affects internal parts and leads to seal failure. You will also shorten bearing life when you so not follow start-up procedures. Improper installation of the seals should also be avoided since they could end up damaging elastomers and cause other issues. The flat nature or the seals make them sensitive and hence care should be taken when handling them.