Dry screw vacuum pumps operate with two screw rotors rotating in opposing directions. This traps the moderate to become pumped between the cylinder and the screw chambers and transports it to the gas discharge. The advanced screw design results in lower electric energy consumption in comparison to standard screw styles. It also results in a lower high temperature load of the compressed gas.

Screw Vacuum Pump cooling may be accomplished through a higher performance air cooling method eliminating the necessity of cooling drinking water or indirect cooling method resulting in uniform temperatures through the entire pump body, eliminating frosty spots and providing a thermally stable drinking water jacket. The advanced screw style allows for best-in-class hydrogen pumping features. Water cooling can take place in type of both direct water cooling or radiator cooling with air-cooled high temperature exchangers.