Liquid Ring Vacuum Pump

  • Non-polluting
  • Oil-free
  • Handling of nearly all gases and vapours
  • Easy maintenance
  • Reliable operation
  • Low noise
  • Nearly free from vibration
  • Wide choice of material

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Features

  • Vacumm pressure ranges from 33 mbar to 1013 mbar.
  • Suction volume ranges from 24 m³/h to 280 m³/h.
  • Non-polluting due to nearly isothermal compression
  • Oil-free, as no lubrication in the working chamber
  • Handling of nearly all gases and vapours
  • Small quantities of entrained liquid can be handled
  • Easy maintenance and reliable operation
  • Low noise and nearly free from vibration
  • Wide choice of material
  • Protection against cavitation as standard
  • Incorporated dirt drain
  • Incorporated central drain
  • No metallic contact of the rotating parts

Technical Data

DescriptionType 1Type 2Type 3Type 4Type 5Type 6
Synchronous speed 50 Hz3000 rpm1500 rpm
Max. compression over atmospheric pressure0.3 bar
Max. admissible pressure difference1.1 bar
Test pressure above atmo spheric pressure1 bar3 bar
Moment of inertia of rotating parts when full of water0.003 kg·m²0.0095 kg·m²0.035 kg·m²0.053 kg·m²0.069 kg·m²0.097 kg·m²
Sound pressure level at a suction pressure of 80 mbar68 dB (A)69 dB (A)65 dB (A)
Max. gas temperature (Dry gas)200°C
Max. gas temperature (Saturated gas)100°C
Max. recommended temperature for water as working liquid40°C
Max. admissible temperature for other suitable working liquids80°C
Max. kinematic viscosity4 mm²/s
Max. density1200 kg/m³
Volume up to shaft level0.3 liter0.4 liter2.4 liter2.8 liter3.2 liter4.0 liter

Performance Curves

Performance Curves

Handling and exhausting of dry and humid gases; entrained liquid can be handled during normal duty. The pumps can be used in any industry that requires the creation of a pressure between 33 to 900 mbar using vacuum pumps.