Becker VT 3.25 Vacuum Pump, tested, watch video 480/230 VAC 3 phase
This vacuum pump was saved from a old print press that was taken out of service. It has been in storage for several years.
I have tested this with 480 volts. It quickly pulls down to 27 inHg.
Label shows its good for 25 inHg and 14.7 cfm. I don't understand why, but there is a plastic plug on the unused hole. This hole is not threaded. With out the plastic plug it nether pushes or pulls air.The mount is missing one rubber grommet. I also have a second one of these listed if interested.