For many years at this point Roots vacuum pumps have been well established in the area of vacuum technology. In mixture with backing pumps, which compress against the atmosphere, these pumps offer plenty of advantages.
Features:
The main benefit of roots vacuum pump 
is a high pumping speed at the low inlet pressure with high ultimate vacuum. Since the pump running parts haven’t any contact, such as rotors and the finish cover, therefore the pump overall performance is definitely stable and lengthy service time. low maintenance cost
Applications:
They’re widely used in vacuum smelting, vacuum welding, vacuum casting, vacuum Roots Vacuum Pump china coating, vacuum drying, vacuum dynamic experiment and chemical substance pharmaceutical, electric vacuum device manufacturing industries.
In view of the chemical substance, pharmaceutical and other industries require huge vapor degassing capablity. the sealing framework of roots vacuum pump chamber and the bearing chamber has improved, which significantly reducing the bearing cavity and gear cavity oil emulsification. Therefore, roots vacuum pump is certainly more suitable for pumping large levels of drinking water vapor and solvent with drinking water ring vacuum pump.