Used busch vacuum pump R5
This is a used Busch vacuum pump with a 3hp 3 phase Toshiba Induction motor that that was in service and in working condition up to the date of planned replacement. The plate w the model number has fallen off. I asked around and the consensus is that this is a R5-063-168 model rated at 41 cfm (29.3hg) 15 Torr. I will probably remove (and include) or turn the air intake down too for the same reason. Look at the pics and ask questions if you have them.