Re: water in hydralic fluid

Posted by Vern-MI on June 25, 2003 at 09:50:54 from (66.2.148.12):

In Reply to: water in hydralic fluid posted by ron corkum on June 24, 2003 at 13:36:33:

Some of the ways top remove water from oil:
First, use a coalescing filter from places like Pall and Velcon Filter companies to trap water that is in the oil in an offline filter media which absorbs water. This is expensive.
Second, Vacuum Distillation to remove the oil by first heating the oil and then subjecting it to a vacuum to evacuate the vaporized water. also expensive.
Third, like T_Bone said is by stratification although some emulsions are resistant to stratification.
The first two are very expensive so the best idea is to drain off the excess water, run for awhile, drain any additional water and all of the oil and then replace the oil with new.

One way to test for water in oil is to take a sample of the oil which to the naked eye has no water contaminant in it and put it in a container over an open flame. THIS IS NOT RECOMMENDED. Professional laboratories bring the temperature up over 212 degrees Fahrenheit and watch for water being vaporized from the oil. This is very dangerous and is not recommended for amateurs and should only be done in an open flameproof / explosion proof area, or separate building away from other non-hazardous areas and people, and with everyone being a safe distance away from the container. The operator should be dressed in a fireproof suit and fire fighting equipment should be at the ready. Once the water vaporization temperature is reached all HE double L will break loose and the steam will cause a violent reaction in the oil. This is not recommended for amateurs and if you have ever seen it done you will have a lot of respect for the danger of water in oil in a high temperature system or those above 212 degrees Fahrenheit. Water in automotive automatic transmissions will boil and cause the oil to be burped out of the fill tube onto everything under the hood. Then a fire will ensue.

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