Thetys Pumps SRL
Tel: +40 744 595 445
Str. Teheran, nr. 11, sector 1,
011931 Bucuresti, Romania

Because life is fluid.


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Vacuum pump – Thetys Pumps
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Vacuum pump

Thetys Pumps / Products  / Pumps / Vacuum pump

Liquid ring vacuum pump type Ensival Moret VRN

Liquid ring vacuum pump for demanding applications

The VRN liquid ring vacuum pump range, mainly present in the fertilizer industry, has been designed as the best solution for vacuum applications where wet or extremely humid and slightly contaminated gases are ingested.


Main benefits
  • Heavy-duty design
  • Suitable for contaminated/corrosive gas
  • Low maintenance
  • Silent running
Main applications
  • Filtration under vacuum
  • Vacuum condensers
  • Crystallization
  • Concentration
  • Evaporation
Main design features
  • Single-stage pump with inlet via guide plates at both ends of the rotor
  • Shaft sealing by packing with inserted lantern rings
  • Shaft fully protected
  • Self-adjusted compression rate
  • Not affected by liquid or dust
  • Water saving reservoir at pump discharge
  • Eccentric blade impeller between bearings
  • Fabricated or cast cylinder
  • Extensive material range
  • Various sealing options available
  • Compressor operation design available
  • Liquid ring water supply optimization
  • Partial / total water recirculation system
  • Epoxy fiber separator
Key characteristics
Capacities up to 23’000 m3/h / 101’265 USgpm
Absolute suction pressure up to 50 mmHg / 50 mmHg
Temperatures up to 50°C / 122°F
Performance range
Pulp, paper and board

Sulzer is the world leader in innovative, reliable, and proven pumping, agitation and mixing solutions for the pulp and paper industry. Our deep process and application knowledge is based on long-term close co-operation with the producers, machinery suppliers and engineering companies.


Sulzer’s pumping and mixing solutions for the base and precious metal industry are designed for corrosive and abrasive liquids. We offer expertise e.g. for the production of aluminum, copper, nickel, zinc, and precious metals.


Sulzer improves quality, capacity, and energy efficiency with its advanced technologies and services for separation processes; including distillation, absorption, evaporation, extraction and crystallization. Our pumps, mixers, and agitators cover the specific requirements in chemical processes.


Our pumps, mixers and agitators provide durability and reliability for fertilizers production as well as for corrosive and abrasive liquids and high gas content. Our specific industry experience also includes separation processes and servicing of pumps, compressors, turbines, and motors.

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