Rietschle V-VC500

Oil-lubricated rotary vane pumps V-VC

• Oil-immersed rotary vane vacuum pumps

• Flange-mounted motor.

• Bearings on both sides of the rotor.

• The oil/air heat exchanger is standard.

• Sizes 150 and larger are equipped with a fine mesh filter, vacuum non-return valve, gas ballast valve, protective cover and oil separator as standard.

• IV version for industrial vacuum

• The XD version is designed for heavy-duty applications involving damp and wet processes.

  
  

Operating principle of oil-lubricated rotary vane vacuum pumps

• Increasing pressure by reducing volume is the principle behind rotary vane operation. This design provides excellent service for pressure, vacuum, or a combination of both. In a cylindrical housing, the rotor is positioned eccentrically so that it almost touches the cylinder at the top. The so-called rotor blades or vanes sit in slots in the rotor. For example, when the rotor starts to turn, centrifugal force throws the vanes outward and they slide along the inner surface of the cylinder. 

• In this way, a cell is formed between two vanes, and its volume changes continuously during rotation. Air enters a cell from the inlet port until the trailing vane reaches the far end of the inlet port. At this point the cell has reached its maximum volume.

• As the cell moves away from the port, its volume becomes smaller and smaller, so the air is compressed and the pressure rises. Some models have a discharge valve next to the exhaust port that prevents discharged air from flowing back when maximum pressure is reached.

• Rietschle V-VC500 view