I got a nice Pfeiffer Vacuum Pump which is small and was originally used at a dentists. I use it for filtrations and solvent stripping and such.
I got some questions, mainly what material is the pump made of? It has suffered some bad abuse being subjected to acid vapors and other things which
are a no-go for rotary vane oil-sealed pumps. Should be. When a cheap Chinese pump would have died long ago this one does not show any sign of the bad
treatment (except for some slight darkening at some places.
What is this magic alloy? Hastalloy?
It takes only 50 ml oil. And I have not really figured out how it is supposed to be filled as the whole front comes away with one screw - great, but
where to put the 50 ml?
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