Oil-free gas conveyance

RKR builds blower and compressor systems for oil-free conveying of gases (compressible fluids).

We can meet your requirement for process purity and safety with entirely oil-free gas conveyance and materials and accessories tailored to your specific application. Oil injection technologies can be associated with high operating costs due to complex, high-maintenance filter systems for oil separation and expensive wastewater treatment of the oil-containing condensate. With our technology, based on dry-running positive displacement machines designed to ensure that the process remains consistently oil-free, you can save significantly by comparison, secure in the knowledge that no oil will pass through the machine into the conveying process.

The advantages of oil-free gas conveyance

  • Cleaner and more environmentally friendly process: no oil in the conveying process in accordance with ISO standard 8573-1 and no accumulation of oil condensate caused by the machine.
  • Easy maintenance: simple solution with no or few downstream components and wear parts (filters).
  • High availability: no disruption due to clogged or damaged filters.
  • Higher energy efficiency: less pressure loss due to a clean process with fewer components.

Conveying media

  • Air
  • Nitrogen (N2)
  • Argon
  • Carbon dioxide, dry (CO2)
  • Helium (He)
  • Hydrogen (H2; H2 Mix)
  • Sewage gas/biogas
  • Mine gas
  • Landfill gas
  • Natural gas (CH mix)
  • Gases in gasification processes (wood gas, coke oven gas)
  • Mixed gases (z. B. acetylene)
Corrosive gases
  • Water steam (H2O steam)
  • Carbon dioxide, humid (CO2)
Your contact


Phone: +49 5751 4004-74 Fax: +49 5751 4004-30 Sales@RKR.de