RUVAC series (LEYBOLD)

RUVAC WA / WAU

The RUVAC WA Roots dry-compressing vacuum pumps are pumps in which no lubricant comes into contact with the medium to be pumped and therefore the vacuum created cannot be contaminated by hydrocarbons. The seals are made of FPM.

RUVAC WS / WSU

The Roots vacuum pumps of the RUVAC WS series are driven by air- or water-cooled canned motors. An optional frequency converter is matched to the pump in such a way that mechanical overloading is ruled out. If the pressure difference is too great, the speed of the pump is automatically reduced until its load is within the permissible range. The RUVAC WSU variants are also equipped with an integrated pressure compensation line and a pressure difference valve. The pumps in this series are delivered with a vertical pumping direction as standard.

Leybold Ruvac series

RUVAC WH / WHU

The RUVAC WH / WHU series is equipped with a hermetically sealed motor without shaft seals and with integrated water cooling. It also has a purge gas option and is therefore suitable for conveying corrosive and toxic gases. The RUVAC WHU model variants also have an integrated detour line with a newly developed control flap. This means that the pumps can be started at atmospheric pressure and the pump-down times in the short cycle are significantly reduced.

Do not hesitate to contact us for more information:

e-mail: info@ehrler-beck.com

phone: +49 (0) 7159 / 4085-0

Benefits for the user

RUVAC WA/WAU

  • Two air-cooled series, WA/WAU, each with four pump sizes
  • Flexibility with custom motors for special voltages and compliance with explosion-proof requirements
  • Versions with ATEX cat. 3i/o available. All WA(U) pumps comply with the ATEX Cat. 3i standard
  • Easy maintenance and replacement of oil seals
  • Integrated pressure equalization line on WAU models to protect against overload at high pressure
  • Conversion from vertical to horizontal flow on site

RUVAC WS/WSU

  • Two air-cooled series, WS/WSU, each with four pump sizes
  • Highly leak-tight, air-cooled pumps driven by an air-cooled canned motor
  • Lubricated with mineral oil (alternatively with LVO 400)
  • Overtemperature switch in the motor stator coil
  • All elastomer seals made of FPM (FKM)/Viton
  • Integrated pressure compensation line with differential pressure valve prevents overloading on the WSU model (optional)
  • With a frequency converter, the RUVAC WS 251 to 2001 pumps can be operated at 20 to 100 Hz

RUVAC WH/WHU

  • Trouble-free operation with toxic or corrosive media thanks to the hermetically sealed motor
  • Compact design with minimal space requirement
  • No shaft sealing rings to the atmosphere, therefore high reliability, long maintenance intervals and no oil leaks
  • Easy system integration
  • Optional frequency converter for high pumping speeds of up to 9,800 m³/h at 70 Hz
  • Lower energy costs thanks to innovative motor technology
  • Integrated water cooling system for installation in air-conditioned production facilities

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RUVAC WHU 2500 vacuum pump

Designation Value
frequency 50Hz 60Hz
nominal pumping speed 2500 m³/h 3000 m³/h
Max. allowed pressure difference 160 mbar 160 mbar
rated power consumption 15.0kW 18.0kW


RUVAC WHU 4400 vacuum pump

Designation Value
frequency 50Hz 60Hz 80Hz
nominal pumping speed 4400 m³/h 5280 m³/h 7040 m³/h
Max. allowed pressure difference 120 mbar 120 mbar
rated power consumption 11.0 / 15.0 kW


RUVAC WHU 7000 vacuum pump

Designation Value
frequency 50Hz 60Hz 80Hz
nominal pumping speed 7000 m³/h 8000 m³/h 9800 m³/h
Max. allowed pressure difference 60 mbar 60 mbar
rated power consumption 11.0 / 15.0 kW


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