... with anti-return oil valve, start convenient Rotary Vane Vacuum Pump Description of rotary vane vacuum pumpThis series pump is used to seal ... . It can be used alone, can also be used for the booster pumps, diffusion pumps, molecular pumps pump the ... , chemicals, pharmaceuticals, universities and other departments.Main features of rotary vane vacuum pump1. Small size, light weight, low noise2. Equipped ...