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Liquid ring vacuum pumps

Advantages

  • High-quality, reliable pumps which are suitable for many industrial applications.
  • Great variety of graded pump sizes which span a large range of delivery volumes
  • Broad portfolio of different designs: Robust standard designs, pumps that are free of dead space, pumps suitable for delivery of water shares, operating water-saving pumps and low-noise, two-stage pumps

Design

  • Single-stage and two-stage pumps, with and without flap valves
  • Close-coupled pumps and base plate pumps
  • Mechanical seals, depending on the medium
  • Usually with a single mechanical seal, but also available with a double-acting mechanical seal
  • VZ model series also with a magnetic coupling
  • Various material designs: Non-ferrous metal, grey cast iron and stainless steel

Performance range

  • Qmax 2.2 – 1600 m³/h (50 Hz)
  • Pmin 33 – 150 mbar abs.
  • pmin 5 mbar abs. with gas ejector
  • Base plate pumps with type examination certificate and ATEX (II 1G IIB+H2 cbk TX)
  • Close-coupled pumps with ATEX II 2G cb TX
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VI

Water savers with internal

water restraining system

 

50 Hz:

max. 33 mbar abs./45 m³/h

60 Hz:

max. 33 mbar abs./55 m³/h

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V

The All-rounders

 

 

50 Hz:

max. 33 mbar abs./370 m³/h

60 Hz:

max. 33 mbar abs./445 m³/h

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VG

Valveless & low-maintenance

 

 

50 Hz:

max. 40 mbar abs./203 m³/h

60 Hz:

max. 40 mbar abs./245 m³/h

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VN

For large quantities

of additional liquid

 

50 Hz:

max. 55 mbar abs./180 m³/h

60 Hz:

max. 55 mbar abs./215 m³/h

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VU

Tried-and tested robust

technology

for rough vacuum ranges

50 Hz: max. 120 mbar abs./

1550 m³/h

60 Hz: max. 120 mbar abs./

1900 m³/h

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VH

Tried-and tested robust

technology

for deep vacuum ranges

50 Hz: max. 33 mbar abs. /

56 m³/h

60 Hz: max. 33 mbar abs. /

68 m³/h

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VHC

Innovative technology

for deep vacuum ranges

 

50 Hz: max. 33 mbar abs./

1600 m³/h

60 Hz: max. 33 mbar abs./

1700 m³/h

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VZ

Robust and low noise

technology

for deep vacuum ranges

50 Hz:

max. 33 mbar abs. / 185 m³/h

60 Hz:

max. 33 mbar abs. / 225 m³/h