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. The advanced screw design results in lower electrical energy consumption in comparison to standard screw styles. It also results in a lower heat load of the compressed gas.

Cooling may be accomplished through a high performance air cooling method eliminating the necessity of cooling water or indirect cooling method leading to uniform Screw Vacuum Pump temperatures through the entire pump body, eliminating cool spots and offering a thermally stable drinking water coat. The advanced screw design allows for best-in-class hydrogen pumping capabilities. Water cooling can take place in form of both direct water cooling or radiator cooling with air-cooled temperature exchangers.