HG46 CO2 T compressor transcritical
HG34 CO2 T compressor transcritical
HG CO2 Transcritical Compressors

Based on the successful HG series these semi hermetic transcritical CO2 compressors use R744 as natural refrigerant and are ideally suited for use in transcritical CO2 appications.

GEA Bock Semi Hermetic HG CO2 Transcritical Compressors

  • Gas-cooled semi-hermetic piston compressor
  • Displacement from 6.2 - 38.2 m3/h (50 Hz)
  • Operating pressures of up to 130 bar
  • Designed for transcritical CO": LP 100 bar / HP 150 bar
  • Highest efficiency in the market with COP of more than 1.85 (50 Hz)(1450 U/min), evaporating - 10 deg C, gas cooler outlet 35 deg C/90 bar, superheat 10 K

Special Features
The compressors are used in transcritical and subcritical applications for supermarkets, commercial, industrial refrigeration and heat pumps.

Models available: HGX2, HGX34 AND HGX46

Current types Displacement at 50 Hz (1450 rpm) m³/h
HGX2 CO2 T 6.2 7.7
HGX34 CO2 T 9.9 11.3 12.9 14.5 16.3 18.2 20.1 25.5
HGX46 CO2 T 24.4 27.2 30.2 38.2

  • Highest compressor efficiency for low operating costs
  • High durable compressor design
  • Reliable and safe oil supply through pump lubrication
  • Good operational characteristics with low vibration, low pulsation and low noise level
  • Wide operating limits and wide frequency range for different applications
  • One of the biggest capacity ranges ( > 38 m3/h transcritical)
  • High stand still pressure for best operating conditions
  • GEA-Bock has the longest experience with carbon dioxide compressors on the market, going back to 1993
  • Applications include heat pumps, commercial refrigeration and industrial refrigeration