Oil Rotary Vacuum Pump

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• - Displacement speed(60Hz) : 180 ~ 600 ℓ/min
• - Ultimate Pressure : 5 x 10-4 Torr
  

Oil rotary vacuum pump (Belt Vane type vacuum pump :BVP Series), As the shown picture, this vacuum pump consists of pump body, including pump housing, rotor being eccentric in cylinder, motor, oil case, the front and rear covers of cylinder, and parts related to it. The central working unit of a rotary vane vacuum pump is the pumping system. It consists of a cylinder with ports leading outside which are used to take in and exhaust the gases to be pumped. Inside, there is a rotor that is mounted eccentrically to the cylinder. The rotor has slots into which vanes are fitted. The vanes sliding along the cylinder wall divide the free inner space into working chambers. During one full rotation of the rotor, the chamber volume increases from zero to maximum and then decreases again continually to the minimum volume. Actual pumping is effected by the increase and decrease in size of the sickle-shaped chambers of the working space. The decrease of the chamber volume causes the contained gases to be compressed. The compression must be strong enough so that the gas pressure becomes higher than the opening pressure of the outlet valve

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