Isomag bearing isolators prevent water contamination in bearing oil for refinery steam turbines.

November 28, 2016

Water contamination in bearing oil is a common recurring issue for steam turbines in the oil and gas industry. Labyrinth isolators fail to stop condensate from entering the bearing housing as steam dissipates from the carbon box. A Chevron in Port Arthur, Texas put an end to this issue by replacing the existing labyrinth isolators with Isomag bearing isolators. Since installed in 2014, the end user reports that the seals are running smoothly at low temperatures (120 oF) with no evidence of water contamination. The old practice of evaporating water out of the oil twice a year is no longer necessary. 



Application Summary:

Manufacturer: Turbodyne                       Previous bearing protection: Labyrinth isolators

Speed: 4370 rpm (4900 trip)                  Problem solved: water contamination

Shaft diameter: 4.000 inch                     Solution: Isomag MP V9 + Steam deflector

Lubrication: Splash                                 Year installed: 2014


Statement from the End User:

“We are very pleased with Isomag’s ability to stop contamination at such high shaft speeds during both dynamic and static conditions.”





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