OXYGEN & OIL ARE EXPLOSIVE!!! I didn’t catch the importance of
the original post.
Please do NOT use oxygen as a pressure source under any
conditions except those specifically designed for oxygen service.
I have seen a Regulator that a Linde Rep had, which killed a
HVAC technician when oil got on the regulator and blew the
adjusting screw through his chest.
Use CO2 or Nitrogen . CO2 is widely used by restaurents.
Just my 2 cents worth.