For many years now Roots vacuum pumps have been well established in the area of vacuum technology. In combination with backing pumps, which compress against the atmosphere, these pumps offer lots of advantages.
Features:
The main benefit of 
roots vacuum pump is a higher Roots Vacuum Pump china pumping speed at the lower inlet pressure with high ultimate vacuum. Since the pump working parts have no contact, such as for example rotors and the end cover, therefore the pump performance is definitely stable and long service time. low maintenance cost
Applications:
They’re widely used in vacuum smelting, vacuum welding, vacuum casting, vacuum coating, vacuum drying, vacuum dynamic experiment and chemical pharmaceutical, electric vacuum device manufacturing industries.
Because of the chemical, pharmaceutical and additional industries require large vapor degassing capablity. the sealing framework of roots vacuum pump chamber and the bearing chamber provides improved, which greatly reducing the bearing cavity and gear cavity oil emulsification. Therefore, roots vacuum pump is definitely more ideal for pumping large quantities of water vapor and solvent with drinking water ring vacuum pump.