Laby® Compressor
Laby® Compressor (click to enlarge)

The Laby® Compressor represents unbeatable reliability and availability, thanks to its unique labyrinth sealing system on piston and piston rod gland that allows oil-free and contact-free compression. The result is an extended MTBO (meantime between overhaul), that has a positive impact on reliability and operating cost. Neither contamination of the gas by abraded material from piston rings nor hot spots from friction occur.

The Laby® Compressor is designed to compress bone-dry, dirty, abrasive, cryogenic and other gases. The gastight casing reduces gas emission and losses to the environment to zero. The sealing ring less contactless Laby® Compressor is insensitive to extreme temperature changes that occur when handling LNG boil-off gas at suction temperatures at plus 40° C (plus 104° F) down to minus 170° C (minus 250° F).

Since Laby® Compressors do not need wear parts such as piston rings piston rod packing rings this technology helps the owner to minimize OPEX costs for the compressor.





Compressor type D/E K
Discharge pressure [bara] / [psia] up to 300 / 4350 up to 120 / 1740
Capacity [Nm3/h] / [scfm] up to 48’000 / 28’000 up to 15’000 / 8’800


Design features

  • Labyrinth sealing system on piston and piston rod gland
  • Non-lubricated cylinder section (no oil required, no contamination of the gas)
  • No contact seals required for trouble free compressor operation with dirty gas
  • Lubricated piston guiding system for precise alignment and long life
  • Top quality compressor valves for high reliability
  • Gas tight design available up to 15 bara (suction pressure)




Gases handled

  • Ammonia
  • Argon
  • Carbon dioxide
  • Carbon monoxide
  • Chlorine
  • Dust laden gases
  • Hydrocarbon gases
  • Mixed gases
  • Nitrogen
  • Oxygen
  • Process air
  • Refrigerants
  • VCM (Vinyl Chloride Monomer)