INFICON QS5 Vacuum pump

The INFICON QS5-Vacuum pump is designed for fast, deep evacuation, affordability, and durability

QS5-Vacuum pump

Fast, efficient and reliable

The INFICON QS5 vacuum pump is designed for fast, deep evacuation, affordability, and durability.

This is a two-stage rotary vane pump with a nominal displacement of 5 CFM (0.1422 m3/min) for ultimate vacuum down to 15 microns. Features like a large oil sight glass, easy access oil drain and an innovative oil separator/drip eliminator simplify maintenance.

The pump is equipped with a non-slip handle for easy carrying and the robust construction is designed for maximum service life. In addition, a 2-year exchange guarantee is granted, which is unique in the industry.



  • The gas ballast ensures that pumped water vapor escapes into the environment and does not accumulate in the oil tank.
  • A fan controls airflow for maximum heat transfer, allowing the pump to run cooler
  • Inlet anti-backflow device prevents oil from flowing back into the system in the event of a power failure
  • The wide footprint and solid base plate increase stability and prevent the pump from tipping over


  • Tethered caps on the oil drain and inlets prevent them from falling off or being lost
  • The two-stage rotary vane pump enables rapid creation of a deep vacuum of 15 microns
  • The thermally protected motor ensures safe operation
  • Dual voltage operation
  • 2 year exchange guarantee

Typical applications

  • Heating, ventilation, air conditioning, and refrigeration (HVAC/R) service

Technical specifications

Type QS5 Scope of delivery of the basic device:   Power cord, one bottle of oil Atmospheric Air Displacement   5 cfm (142 l/m) Engine   1/2 HP, AC Oil capacity   12.5 oz. (370 ml) Weight   24 lb. (10.89 kg) Power supply   115/230 V dual voltage operation Warranty   2 year

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