The role of the roots pump

Roots vacuum pump refers to a kind of variable capacity vacuum pump that is equipped with two vane-shaped rotors rotating synchronously in opposite directions, and there is a small gap between the rotors and between the rotor and the inner wall of the pump casing without contacting each other. Roots vacuum pumps have been tested for long-term operation in petroleum, chemical, plastic, pesticide, steam turbine rotor dynamic balancing, aerospace space simulation and other devices, so they should be vigorously promoted and applied in China.