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 Screw Vacuum Pump discharge. The advanced screw style results in lower electrical energy consumption compared to standard screw styles. It also results in a lower heat load of the compressed gas.

Cooling can be achieved through a high performance air cooling technique eliminating the need of cooling water or indirect cooling method resulting in uniform temperatures throughout the pump body, eliminating frosty spots and providing a thermally stable drinking water coat. The advanced screw design allows for best-in-class hydrogen pumping capabilities. Water cooling may take place in kind of both direct drinking water cooling or radiator cooling with air-cooled high temperature exchangers.