Rubber Feet for noise dampening. Free Air Dispalcement - (CFM). , alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize.
The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener⢠is not to be used with any vacuum pumps, EVER. A seized motor will result within the first use.