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Thread: White foamy oil?
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23-03-2009, 04:34 PM #1
White foamy oil?
Is there a reason why you get white foamy oily substance sometimes when connecting gauges. It seems to happen on the older R22 systems.
What causes it? Is it when the sytem is short of refrigerant which causes the oil to heat up and foam or even when moisture is in the system?? or something elseLast edited by marc5180; 23-03-2009 at 04:37 PM.
The difference between genius and stupidity is that genius has its limits.
Marc
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23-03-2009, 05:22 PM #2
Re: White foamy oil?
White foamy oil substance is caused by liquad refrigerant boiling off in the oil and the formation of this oily foam is the result of the boiling off of the refrigerant, I belive that it is more evident in Mineral based oils used on R22 systems, but then i could be wrong.
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23-03-2009, 06:19 PM #3
Re: White foamy oil?
GreenFly, you are absolutely right!!
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23-03-2009, 07:53 PM #4
Re: White foamy oil?
on bigger compressors, like the copeland semi's, you can see the foam in the control oil glass, and its like Greenfly explained, but not only the R22, but on every refrig.
Ice
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23-03-2009, 10:57 PM #5
Re: White foamy oil?
You might also find it due to the system being a little short of gas which is the reason you probably put the guages on in the first place.
Lack of gas = less gas to carry oil around system = oil settles out near tees, branches etc.
That's my theory anyway.Brian - Newton Abbot, Devon, UK
Retired March 2015
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24-03-2009, 07:09 AM #6
Re: White foamy oil?
Recently I came across a batch of R134a from a world known company which causes flocculation in POE oil at low temperature. Flocks are like white flakes, floating around... they may clog the oil passages if oil is not properly warmed up.
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24-03-2009, 05:47 PM #7
Re: White foamy oil?
Good stuff another one for the memory bank. Thanks guys
The difference between genius and stupidity is that genius has its limits.
Marc
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