1. Rotary Vane Vacuum Pump 2. light weight, low noise 3. Equipped with anti-return oil valve, start convenient Rotary Vane Vacuum Pump ... electronics, chemicals, pharmaceuticals, universities and other departments.Main features of rotary vane vacuum pump1. Small size, light weight, low noise2. ... .370.55voltage(v)220220/380220/380weight(kg)162024 2XZ-1 Top Quality Laboratory Rotary Vane Vacuum Pump