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RangersSuck RangersSuck is offline
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Default air tank for vacuum

On Tuesday, October 29, 2019 at 11:18:06 PM UTC-4, Leighton1210 wrote:
I need a way to vacuum hot oil without collapsing a vessel. We have been
using 55 gallon drums for oil that has cooled down, but, they will collapse
when enough hot oil is vacuumed into them. My thought was to use a 20 gallon,
200 psi, 650 degree F rated air tank. This would not be a true vacuum. There
will be constant air flow. The hot oil that we need to vacuum is only about 1
to 1 1/2 inches deep, so, a standard hot oil pump will not work.

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You can pull a serious vacuum on a depleted Freon tank. Also there are refrigerant recovery tanks that have dual valves - one for gas at the top and one for liquid with a dip tube to the bottom.