The rotary vane vacuum pump is the basic equipment used to remove gas from sealed containers. It can be used alone, and can also be used as the pre pumping pump of booster pump, diffusion pump, molecular pump, maintenance pump and titanium pump. It can be used for the manufacture of dry electric vacuum devices, vacuum welding, printing, blister, refrigeration equipment repair and instrument matching, etc. Small size, light weight, low noise and other characteristics, the application range is very wide.