For many years at this point Roots vacuum pumps have been well established in the region of vacuum technology. In mixture with backing pumps, which compress 
against the atmosphere, these pumps offer lots of advantages.
Roots Vacuum Pump china Features:
The main advantage of roots vacuum pump is a higher 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, so the pump functionality can be stable and lengthy service time. zero-maintenance cost
Applications:
They’re trusted in vacuum smelting, vacuum welding, vacuum casting, vacuum coating, vacuum drying, vacuum dynamic experiment and chemical substance pharmaceutical, electric vacuum device manufacturing industries.
Because of the chemical, pharmaceutical and other industries require huge vapor degassing capablity. the sealing structure of roots vacuum pump chamber and the bearing chamber offers improved, which significantly reducing the bearing cavity and gear cavity oil emulsification. Thus, roots vacuum pump is definitely more ideal for pumping large levels of water vapor and solvent with water ring vacuum pump.