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Pump combination types

• Used with Oil-sealed Rotary Vacuum Pumps

  

  Capable of efficiently exhausting large capacities with proven results in heat treating equipment and welding equipment.

• Two-stage System Using an Oil-sealed Rotary Vacuum Pump and Roots Vacuum Pump

  

  This is an environmentally friendly vacuum system that obtains a high vacuum by combining two roots vacuum pumps.

• Used with Liquid-ring Vacuum Pumps

  

  Strong against condensable gas, and has been used in processes for vacuum drying and vacuum distillation.

• Two-stage System Using a Liquid-ring Vacuum Pump and Roots Vacuum Pump

  

  These systems obtain a high vacuum by combining two or more roots vacuum pumps. Many such systems are in use for products such as in dryers.

• Used with Dry Vacuum Pumps

  

  This environmentally compatible vacuum system is completely oil-free and strong against corrosive gases.

• Two-stage System Using a Dry Vacuum Pump and Roots Vacuum Pump

  

  This is an environmentally friendly vacuum system that obtains a high vacuum by combining two roots vacuum pumps.

• Ejectors with Liquid-ring Vacuum Pumps

  

  This is an environmentally friendly vacuum system that combines ejectors which are suitable for heavy exhaust volumes and a liquid-ring vacuum pump which adopts a closed-cycle system. Various conditions can be met by changing the number of ejectors, and by adding or removing a roots pump.