RV Oil Sealed Rotary Vane Vacuum Pumps

The RV series of rotary vane pumps are the result of more than 75 years’ experience and a clean sheet design programme to produce the ultimate range of small oil sealed rotary vane pumps. 

These rugged vacuum pumps offer an excellent ultimate with good pumping speeds as well as superior vapour handling capabilities and quiet operation. Edwards RV series of vacuum pumps have become the industry standard with over 200,000 units sold. This success has been based on field proven design and reliability in a wide range of applications and environments. 

  • High Vapour Handling:
    Quicker Process
  • Superior Particulate Handling:
    High Reliability
  • Fast Acting, Dependable Inlet Valve for Anti-Suck Back Protection:
    Safe Process & Systems
  • Mode Selector & Two Position Gas Ballast:
    Configured to Meet Your Vacuum Needs
  • Designed for Easy Maintenance:
    No Unplanned Downtime
  • Quiet Running:
    Better Work Environment

       

 

  • Analytical instruments - LCMS
  • Distillation
  • Extraction
  • Filtration
  • Freeze drying
  • Gel drying
  • Solvent recovery
  • Centrifugal evaporation

DUSTY APPLICATIONS

  • Furnaces
  • De-gassing

CLEAN DRY APPLICATIONS

  • Analytical instruments - GCMS
  • Centrifuges
  • Coating
  • Turbo pump backing
  • Gas bottle filling/emptying
  • Leak detectors
  • Load locks
  • Electron microscopes

SPECIAL APPLICATIONS
Where your application does not fall into one of the other categories, we can offer pumps specifically designed to meet your requirements. Past examples of these include:

  • PFPE prepared pumps
  • Versions compatible with brake fluid
  • ATEX approved pumps
  • Air driven motor variants for oil and gas rig
  • Many of these variants have gone on to become standard catalogue items, so if you have an unusual application please ask your local salesman and we will be pleased to help 

KEY FEATURES AND BENEFITS

WET PUMPING

Key benefits of Edwards RV pumps for “wet” applications:

  • Highest vapour pumping capacity of any rotary vane pump
  • Unique mode selector switch means pump maintains lubrication at high flow
  • Highest gas ballast flow of any rotary vane pump giving 220g/hr (290g/hr on RV12) water vapour handling capacity
  • Optional oil return kit to ensure the oil stays in the pump at high flow

For applications where the solvents/vapours are incompatible with fluoroelastomer (FKM) seals, a nitrile (Buna-N) conversion kit is available. Additionally PFPE prepared pumps may be ordered if pumping large quantities of oxidants.

DUSTY
Key benefits of Edwards RV pumps for “dusty” applications

  • Best in class anti-suck back protection to prevent dust getting back into the process
    Controlled opening by oil pressure to eliminate pressure surge
    Rapid closing within 0.4 seconds of pump stopping due to dump valve
  • Large diameter oil passages (3-5mm) to avoid clogging
    Some competitor pumps have oil passages of less than 1mm diameter

Designed using experience of PVD and CVD applications from the semiconductor industry, Edwards range of RV pumps are ideal for dusty applications.

CLEAN/DRY
Key benefits of Edwards RV pumps for clean/dry applications

  • Unique mode selector switch means pump maintains lubrication at high flow
  • Optional oil return kit to ensure the oil stays in the pump at high flow
  • Best in class anti-suck back protection to prevent oil mist getting back into the process
    Controlled opening by oil pressure to eliminate pressure surge
    Rapid closing within 0.4 seconds of pump stopping due to dump valve

The patented mode selector means that the pump is equally happy in either high vacuum applications or high throughput applications. For the latter an optional oil return kit can be fitted that allows the pump to operate continuously at high throughput without losing all its oil down the exhaust line.

OXIDANTS
Key benefits of Edwards RV pumps for pumping oxidants:

  • Highest gas ballast of any rotary vane pump
    Allows dilution of pumped gases to minimise oxidation of the oil
  • PFPE variants available
    Ideal for pumping oxygen and halogenated compound

The high gas ballast of the RV pumps allows higher flows of oxygen whilst maintaining dilution to below the lower explosive limit. When combined with the optional oil return kit to prevent the gas ballast from blowing all the oil into the exhaust and a PFPE prepared pump to avoid oxidation of the oil, the RV pump makes a solid pump for oxygen. Equally these same features make the RV pumps ideal for pumping other oxidants such as halogens and halogenated compounds. For these compounds fire/explosion is not an issue, but a gas ballast is still useful for dilution to protect the oil and bearings. PFPE should be used to prolong oil life.

PUMP RANGES

Edwards range of rugged vacuum pumps offer an excellent ultimate with good pumping speeds. RV pumps also have superior vapour handling capabilities while operating quietly.

  • RV3
  • RV3 PFPE
  • RV5
  • RV5 PFPE
  • RV8
  • RV8 PFPE
  • RV12
  • RV12 PFPE

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