This is for a welch vacuum pump i got at a garage sale.
Ac vacuum pump oil substitute.
Now i m in a jamb.
Distilled vacuum pump oil is mixed with specific solvents which aid in lubrication oxidation resistance and foaming resistance.
If the susbstance that you are vacuuming consist of high moisture then your oil should be able to withstand it.
This means hydrotreated oils do not mix with.
What s the closest substitute for vacuum pump oil that can be purchased at normal stores.
It came without oil so it s just been sitting on the shelf and i completely forgot to buy a quart.
I have always had the understanding that vacuum pump oil was a specific type of oil.
Since you are using the oil in a vacuum process there is very little chance it will enter or contaminate your.
Messages 18 449 location east of.
I thought vacuum pump oil was hygroscopic in nature absorbs moisture and this being the reason that keeping fresh vacuum pump oil in your pump will aid in quicker pull downs.
Remember that the vacuum performance will drop accordingly as the moisture increase.
I want to use the pump later today and or tomorrow morning to bleed the brakes on my work truck.
Someone please clarify something for me.
Things for consideration.
Vacuum pump oil substitute.
Material of the vacuum pump seal which should be able to resist the oil corrosion.
Vacuum pump oil should have as low a vapor pressure as possible e g low volatiles.
I know i can get vacuum pump oil shipped to me from speciality suppliers but if i choose to use an off the shelf product what would be the closest fit.
A longer answer there are better alternatives.
It s used for evacuating air conditioning systems.
Hydrotreated pump oil however does not share the same solubility as distilled pump oil.
And your jug of vacuum pump oil is empty and johnstone supply is closed until monday.
I m not using it to pull a vacuum on a.
More or in baking fold stiffly beaten egg whites into the batter.
These characteristics are important for vacuum pump oil as they increase the life and performance of the pump and the oil itself.
Is there a substitute oil that 39 ll do the job without damaging your pump until you can get the right stuff.
Oil substitutes shortening use.
That is why we purchase it at our supply house instead of any automotive store.
The baby oil would work.
Now let 39 s also assume there 39 s a napa auto parts nearby with a wide selection tranny fluid hydraulic fluid compressor oil and motor oil.
