This is of a dry vacuum pump is a pump that does not use any fluids to make a vacuum or contact the procedure gas and may also discharge to atmosphere. … Timing gears with oil reservoirs and close clearances between your rotors and housing are extra attributes that make up a dried out vacuum pump.

Principle of Operation

Dry screw vacuum pumps operate with two screw rotors rotating in opposite directions. This traps the moderate to become pumped between the cylinder and the screw chambers and transports it to the gas discharge. … In addition, it results in a lesser warmth load of the compressed gas.