Dry screw vacuum pumps Screw Vacuum Pump operate with two screw rotors rotating in reverse 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 style results in lower electrical energy consumption compared to standard screw designs. It also results in a lesser high temperature load of the compressed gas.
Cooling may be accomplished through a higher performance air cooling technique eliminating the necessity of cooling water 
or indirect cooling technique resulting in uniform temperatures throughout the pump body, eliminating chilly spots and offering a thermally stable drinking water coat. The advanced screw style allows for best-in-class hydrogen pumping capabilities. Water cooling can take place in form of both direct drinking water cooling or radiator cooling with air-cooled temperature exchangers.