Dry screw vacuum pumps operate with two screw rotors rotating in reverse directions. This traps the medium 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 designs. It also results in a lower warmth load of the compressed gas.

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