The compressor itself sits in an oil bath, under atmospheric pressure
(the compressor shell is the inlet side), so no drain there.
You do need to drain the receiver tank, as with any compressor.
Ed is not wrong, if you _only_ need vacuum it is better to just use
the suction side directly, a venturi generator is very inefficient.
ST
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On Sat, Jul 28, 2018 at 8:31 PM, John Griessen <john@...> wrote:
How about a condensate drain valve? Do you have that to let water out the
bottom of the
compressor shell/tank? A small refrigeration compressor from a water
cooler might be a good size
for venturi vacuum generating.
