Product Description CE Professional Industrial Rotary Vane Vacuum Pump for Chimical Reactor   The rotary vane vacuum pump is an oil-sealed rotary displacement pump. The outlet valve is oil-sealed. The inlet valve is designed as a vacuum safety valve that is always open during operation. It can be used independently ,which also can be as booster … Continue reading China Custom CE Professional Industrial Rotary Vane Vacuum Pump for Chimical Reactor vacuum pump distributors