Dry screw vacuum pumps operate with two screw rotors rotating in opposite directions. This traps the moderate to end up being pumped between the cylinder and the screw chambers and transports it to the gas discharge. The advanced screw style results in lower electrical energy consumption compared to standard screw Screw Vacuum Pump designs. In addition, it results in a lower high temperature load of the compressed gas.

Cooling may be accomplished through a high performance air cooling method eliminating the need of cooling drinking water or indirect cooling technique leading to 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 capabilities. Water cooling may take place in form of both direct drinking water cooling or radiator cooling with air-cooled warmth exchangers.