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Liquid Ring Vacuum Pumps - LPH (NA Design)


Liquid ring vacuum pumps of the LPH series are single-stage or two-stage displacement pumps of uncomplicated and robust construction.


  • General Industry
  • Chemicals
  • Oil & Gas
  • Power

industry sectors

  • Pulp & Paper
  • Steel & Primary Metals
  • Food & Beverage
  • Other Industries
  • Basic (Organic & Inorganic)
  • Specialty (Fine & Consumer)
  • Biofuels
  • Pharmaceutical
  • Midstream Transportation
  • Downstream Processing
  • Nuclear
  • Conventional Steam
Operating Parameters
  • Flows to 3600 m³/h (2100 CFM)
  • Suction pressures to 33 mbara (0.5 psia)
  • Temperatures to 80 °C (176 °F)
  • Service liquid max. admissible temperature 60 °C (140 °F)
Design Range

Size Range: From 1-1/4" to 8"

Features & Benefits
  • Non-polluting due to nearly isothermal compression
  • Oil-free, as no lubrication in the working chamber
  • Handling of nearly all gases and vapours
  • Entrained liquid can be handled
  • Easy maintenance and reliable operation
  • Low noise and nearly free from vibration
  • Wide choice of material, therefore applicable nearly everywhere
  • Protection against cavitation as standard
  • Incorporated dirt drain
  • Incorporated central drain
  • No metallic contact of the rotating parts
  • Single or two-stage design
  • Cast Iron or 316 SS materials
  • Special materials are available on request


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