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Pump combination types

• Used with Roots Vacuum Pumps

  

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

• Used with Roots Vacuum Pumps on 2-stages

  

  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 Ejectors

  

  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.