Coal Power Plant Improves Pump Seal Performance | John Crane
This website uses cookies to ensure users have the best online experience. By continuing to browse this website, you are giving your consent to the use of cookies. To learn more, read our privacy policy. X
< Back to Stories

Coal Power Plant Improves Pump Seal Performance

03 June 2019

As with all rotating equipment, pump seal wear is a constant factor requiring continual monitoring, maintenance, repair, and replacement to keep pumps operating as specified. In coal-fired power plants, mechanical seals are utilized in pumps throughout many processes.

Mechanical seals consist of a stationary primary element that is fixed within the pump housing and a rotating mating element fixed to the shaft. Precisely machined, these two components are pressed together, meeting at a wear face, while the extreme tolerances between the two elements minimize leakage. The seals rely on a certain amount of leakage to lubricate the moving surfaces. The rotating element is supported on an extremely thin lubricating film, typically 0.25 microns in thickness.

Read full story >