Vilter Single Screw Compressors for Industrial Refrigeration

Vilter’s VSM & VSS single screw compressors for industrial refrigeration deliver longer life, higher reliability, and better energy efficiency than twin screw compressors and have fewer moving parts than reciprocating compressors. The key to the single screw compressor’s reliability is in its balanced design. The balanced design results in ultra-low bearing loads with significantly decreased vibration and sound levels.


The inherent balanced design advantages allow Vilter to offer the exclusive 5/15 Warranty, including 5 years on the compressor and 15 years on the bearings. The key to the single screw compressor’s high effi ciency is Vilter’s exclusive Parallex™ slide system allowing the compressor to run at optimum effi ciency through it’s full range of capacity. Providing the highest reliability and unsurpassed energy efficiency.

Main Features

  • ParallexTM Slide System
  • Vission 20/20TM Microprocessor Control
  • Oil Cooling Options
  • Block and BleedValves are Standard
  • Approvals
    • CE
    • PED
    • UL
    • ASME

Variable Capacity & Volume Control

  • ParallexTM slide valves - Only available on Vilter single screw compressors
  • Capacity slide - 10% to 100% of gas flow
  • Volume slide - 1.2 to 7.0 volume ratio
  • Independent capacity & volume control - optimized efficiency at part load conditions

Balanced Loading

  • No Radial Loads - Compression occurs simultaneously on opposite sides of the screw
  • No Axial Loads - Main screw is vented such that both ends are at suction pressure
  • All bearings are only exposed to suction pressure
  • Results in reliable bearing performance, backed by exclusive 5/15 Warranty


Brochure: Vilter Single Screw Compressors

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