Dried out screw vacuum 
pumps 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 design results in lower electrical energy consumption compared to standard screw styles. It also results in a lesser heat load of the compressed gas.
Cooling may be accomplished through a higher performance air cooling technique Screw Vacuum Pump eliminating the need of cooling drinking water or indirect cooling method leading to uniform temperatures throughout the pump body, eliminating cold spots and providing 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 drinking water cooling or radiator cooling with air-cooled warmth exchangers.