VMY ’56 is the name of the new generation of Aerzen refrigeration and process gas compressors. It is the combination of 35 years of experience from previous VMY series and state-of-the-art concepts of compressor technology. It wil replace the VMY serie ’46 in the medium term. Designed for all common refrigerants, the VMY compressors are applied in the industrial refrigeration technology as well as for mixed gas and process gas in the chemical / petrochemical industry and in power plants. Already one year ago, the types VMY 256 M HR and VMY 256 M NR were successfully introduced. Now the series start-up of the smaller size VMY 156 M will follow. This size is available as male and female rotor-driven machine with volume flows of 444 m³/h to 678 m³/h and the bigger type VMY 356 M with volume flows up to 2.700 m³/h.