Ok, so I got a vacuum pump from ebay. An oil rotary thing, label says it pulls full vacuum (0.0001 tor), 2 cubic meters per hour.
Unfortunatelly the motor is 3 phase 380 Volts, 1360RPM. I only have 1 phase 220 Volts connection so I was thinking of replacing the motor with a 220v one. The motor is physically very easy to replace, it has a flexible coupling to the pump shaft and 4 screws securing it to the frame.
Question: what happens if I put a faster motor on it ? Say 2000-3000rpm instead of 1360rpm as the old motor. Will it suck more air per hour (faster) or will it fry the oil and the internals ? Also what type of oil to use with it ?
