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air compressor / fixed / screw / for ammonia
Grasso M series GEA Wiegand



  • Type:


  • Portability:


  • Technology:


  • Other characteristics:

    for ammonia

  • Applications:


  • Pressure:

    Min.: 28 bar (406.11 psi)

    Max.: 52 bar (754.2 psi)

  • Flow:

    Min.: 231 m³/h (8,157.69 ft³/h)

    Max.: 870 m³/h (30,723.76 ft³/h)


GEA Grasso M compressors are the first screw compressors with an integrated pressure-activated check valve ensuring low pressure drop.The integration of the suction filter and coupling housing greatly simplify assembly of the package. The outstanding energy-efficiency of these compressors is based on the infinitely adjustable capacity combined with the extended variable Vi-range (internal volume ratio). The variable speed from 1,000 to 6,000 rpm ensures a wide operation range and maximum efficiency in full and part load.
Outstanding energy-efficiency
Easy package assembly
Designed for ammonia (R717) and all other common refrigerants
Available according to API 619 and ISO 10440 standard
Swept volume: 231 – 870 m³/h at 2,940 rpm
Speed range: 1,000 - 6,000 rpm
Design pressure: 28 bar, 52 bar