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Liquid Ring Vacuum Pumps RVS

The RVS series are robust and heavy duty liquid ring vacuum pumps, available as single stage pump block model, suitable to compress gas and vapours in industrial processes.

  • Vacuum up to 33 mbar(a)
  • Pressure up to 2,000 mbar(g)
  • Capacity from 400 to 4.200 m³/h

The main features

  • RVS liquid ring vacuum pump series is able to pump gases and vapours
  • Nearly isothermal compression of gases
  • No lubricant in contact with pumped gas
  • The service liquid can be separated from the gas in a liquid separator and can be recirculated either partially or entirely, after a proper cooling.
  • Safe operation and minimum maintenance
  • Reduced noise and vibration
RVS Vacuum Pump

Range

RVS liquid ring pump covers sizes from RVS 7 to RVS 60.

Robuschi RVS Vacuum Pump Front Right View

RVS series components

  1. Casing: Reduced consumptions, thanks to the efficient layout of the internal intake and delivery gas baffles.
  2. Automatic valve: The automatic valve makes it possible to adopt the compression ratio of the pump at the installation conditions, with less energetic consumption.
  3. Plate: A greater volumetric efficiency is possible thanks to the stainless steel laser-cut patented distribution plate and to the good layout of the intake and discharge lights.
  4. Impeller: The impeller is fitted with forward curved blades to give the service fluid the energy that is necessary for the compression and the front hub is conical to facilitate the discharge of compressed gasses.
  5. Shaft seal: The RVS 23-25 includes single mechanical seals flushed from the service fluid. The sizes RVS 30-60 can be installed both packing seals flushed from the service fluid or from the outside, both double mechanical seals.
  6. Shaft: The heavy-duty shaft is protected from the contact with the service fluid and conveyed gas, except for the RVS sizes 23 and 25, because the are made of stainless material (see the page Material execution).
  7. Support: RVS 23 ÷ 25: equipped with two supports with self-lubricating bearings. RVS 30 ÷ 60: lubrication with external greaser.
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