R-VWP Rotary Lobe (Roots) Vacuum Pumps

Elmo Rietschle

The Elmo Rietschle R-VWP series are dry-running rotary lobe (Roots) vacuum pumps for coarse and fine vacuum applications. Two symmetrically shaped rotors rotate against each other without contact, synchronised by a pair of gear wheels — the compression chamber is free of grease or oil, with only the separated gearbox and bearings oil-lubricated. A bypass valve integrated in the housing enables starting together with the backing pump without overloading the motor at high differential pressures. Capacities of 500–2000 m³/h (models 501, 1001, 2001) with an energy-efficient IE3 motor; the pumps tolerate water vapour and most corrosive gases.

Models:

R-VWP 501R-VWP 1001R-VWP 2001

PRICE

On request

Key features

  • Dry, contact-free compression chamber without oil
  • Integrated bypass valve for safe start-up
  • Energy-efficient IE3 motor
  • Tolerates water vapour and most corrosive gases
  • Oil-lubricated gearbox separated from the pumping chamber
  • German engineering, global service network
CEDIN EN 60034 (motors), IP55, insulation class F
Fast delivery
Warranty
Service

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Technical specifications

Flow M3 H500–2000 m³/h nominal at 50 Hz (wider R-series lobe range 485–2,752 m³/h)
Noise DbAnot specified
Drive TypeDry-running contact-free lobes synchronised by gears; flange-mounted IE3 motor (DIN EN 60034, IP55, class F)
LubricationDry compression chamber; oil-lubricated separated gearbox and bearings
Vacuum Mbarcoarse and fine vacuum booster duty; max differential pressure approx. 50 mbar (model-dependent); ultimate pressure down to 0.01 mbar abs in pump sets (R-VPR)
Power Range Kwnot specified per model (IE3 flange-mounted motors)

Applications

Vakuuma pastiprināšana (booster) ar priekšvakuuma sūkņiemĶīmiskie un procesu pielietojumi ar tvaikiemŽāvēšana un destilācijaVakuuma iepakošana un metalurģija

Additional services

Delivery and installation

  • • Free delivery in Riga
  • • Professional installation
  • • Operator training
  • • Warranty maintenance

Technical support

  • • 24/7 technical support
  • • Regular maintenance
  • • Spare parts
  • • Emergency service