Oil-Free Screw Compressor

For applications where process operating conditions vary or where process gas composition is unpredictable, oil-free rotary screw compressors offer the best of both worlds - the reliability and pulsation-free rotary motion of centrifugal compressors.

Design Philosophy

Compression is achieved by the intermeshing of a male and female rotor. As the male rotor is rotated, the intermeshing point - and with it, the process gas - moves from the suction port to the discharge port. Oil-free rotor screw compressors rely on extremely tight rotor-to-rotor and rotor-to-casing clearances to prevent internal recirculation of the compressed gas from discharge to suction. Timing gears synchronize rotation of the male and female rotors preventing metal-to-metal contact and eliminating the need for oil injection.

Applications

  • Hydrocarbon gas
  • Vapor recovery
  • Wet sour gas (up to 90% H2S)
  • Acid gas
  • Wellhead casing pressure
  • Refrigeration
  • Condenser vacuum reduction
  • Synthetic fuels production
  • Coal bead methane
  • Landfill gas
  • Digester gas
  • Polymerizing gas
  • Microturbine fuel gas
  • Natural gas
  • Cogeneration

Testing Capabilities

Every oil-free screw compressor we manufacture must pass stringent testing and inspection procedures. Every component is thoroughly tested before assembly - then the entire assembled compressor goes through a comprehensive testing and inspection process.

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