liquid ring vacuum pump / oil-free / single-stage / compact
LEM, LEL series

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liquid ring vacuum pump liquid ring vacuum pump - LEM, LEL series


  • Technology:

    liquid ring

  • Lubrication:


  • Number of stages:


  • Other characteristics:

    compact, low-noise level, stainless steel, cast iron, monobloc

  • Applications:

    for gas

  • Flow rate:

    470 m³/h (16,597.89 ft³/h)

  • Ultimate vacuum:

    Max.: 1,013 mbar (14.69 psi)

    Min.: 33 mbar (0.48 psi)


Liquid ring vacuum pumps of the series LEM/LEL are single-stage displacement pumps of uncomplicated and robust construction with the following particular features like non-polluting due to nearly isothermal compression, oil-free (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, protection against cavitation as standard, incorporated dirt drain, incorporated central drain and no metallic contact of the rotating parts.


Handling and exhausting of dry and humid gases. Entrained liquid can be handled during normal duty. The pumps are applied in all fields where a pressure of 33 to 900 mbar must be created by robust vacuum pumps.

Technical Data:

Suction volume flow: up to 470 m³/h

Suction pressure: 33 up to 1013 mbar
Shaft seal: mechanical seal, magnetic coupling
Materials: grey cast iron, stainless steel