Lubricant Water Contamination

Water contamination exists in several forms:

Dissolved Water – All oil has some amount of dissolved water within normal levels. The oil appears bright and clear and is difficult to separate without special processes.

Free Water – Large drops that readily settle out and collects at the bottom of the fluid level.

Suspended – Water droplets that are held in


Notes on Lubrication Systems Flushing

The need to perform flushing of a lubrication circulating system can occur for several reasons:

  • Newly fabricated components or systems
  • Recent maintenance or repairs
  • Excessive contamination buildup
  • Change to a new product formulation

When it is necessary to flush a lubricating circulating system following

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