Liquid Ring Vacuum Pumps EHR EDWARDS Series

Liquid Ring Vacuum Pumps EHR EDWARDS Series

Liquid Ring Vacuum Pumps EHR EDWARDS Series Within Edwards’ full range of liquid ring vacuum pumps, the EHR series offers a two-stage construction for peak performance at low suction pressures. Liquid ring pumps are ideal for pumping either dry or wet gases, with a high tolerance to liquid carry over. Pumps can be supplied as bareshaft or as part of a package complete with drive motor, discharge separator, heat exchanger and other accessories for recirculation of the seal liquid.This model is the EHR Cast Iron material variant.

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Liquid Ring Vacuum Pumps EHR EDWARDS Series


  • The EHR is ideally suited to condenser air extraction in the power industry and can also be utilised in many other vacuum applications.


  • Two stage design – peak efficiency at high vacuum
  • Operates across entire vacuum range
  • Mechanical shaft seals
  • Choice of construction materials
  • Rugged, robust construction
  • Minimum number of body joints
  • Externally mounted bearings


50 Hz
Nominal capacity 190 m3h-1 390 m3h-1
Suction pressure 30 mbara 30 mbara
Nominal speed 1470 rpm 1470 rpm
Nominal motor power 5.5 kW 11 kW
Weight 90 kg 160 kg



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