2XZ series of rotary vane vacuum pump is the two-stage high-speed and directly coupling rotary vane vacuum pumpHereinafter referred to as pumpIt has an eccentric rotor mounted in the pump body cavity and two spins in the rotor slot. When the rotor drives the rotary vane,the rotary vane separates the inlet and outlet by the centrifugal force and the spring of the blade,increases the volume of the intake cavity periodically and to inhale the gas,reduces the volume of the exhaust chamber periodically and to compresse the gas,by using the compressed gas pressure and oil, push the exhaust valve to obtain a vacuum. Pump is the basic equipment used to extract air from a sealed container and obtain a vacuum.It can be used alone or as a forepump pump for various types of vacuum systems.Widely used in medical, scientific research, chemical, pharmaceutical, laboratory, plastics, electronics and other industries, as well as electrical vacuum device manufacturing, light bulb, vacuum flask manufacturing, vacuum welding, instruments and apparatus and refrigeration equipment, printing and packaging machinery matching.