The definition of a dried out vacuum pump is a pump that will not use any fluids to create a vacuum or contact the procedure gas and will also discharge to atmosphere. … Timing gears with essential oil reservoirs and close clearances between your rotors and housing are additional attributes that define a dry vacuum pump.
Principle of Operation
Dry screw vacuum pumps operate with two screw rotors rotating in opposing directions. This traps the medium to end up being pumped between the cylinder and the screw chambers and transports it to the gas discharge. … In addition, it results in a lesser temperature load of the compressed gas.