For many years at this point Roots vacuum pumps have already been well established in the area of vacuum technology. In mixture 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 pumping speed at the low inlet pressure with high ultimate vacuum. Because the pump operating parts haven’t any contact, such as rotors and the finish cover, therefore the pump functionality is stable and long 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 pharmaceutical, electric vacuum gadget manufacturing industries.
In view of the chemical substance, pharmaceutical and various other industries require huge vapor degassing capablity. the sealing Roots Vacuum Pump china structure of roots vacuum pump chamber and the bearing chamber offers improved, which significantly reducing the bearing cavity and equipment cavity oil emulsification. Hence, roots vacuum pump is usually more ideal for pumping large levels of water vapor and solvent with drinking water ring vacuum pump.