Vacuum Jets/Ejectors

Vacuum Ejectors

Vacuum ejectors or vacuum jets extend the operating range of process vacuum systems beyond what can be achieved by liquid ring vacuum pump-based systems alone. Utilizing the venturi principle, the motive fluid (steam or air) entrains the process stream (non-condensables and condensables) discharging either into a condenser or the liquid ring vacuum pump.


  • No moving parts
  • Low cost
  • Reduces load on other stages of compression (helps pull a deeper vacuum)
  • Reliable