Natural Refrigerants

R744 (CO2) - Refrigerant Grade

Summary

R744 (CO2) is refrigerant grade CO2, used as a replacement for R134a and R404A in ultra-low, low and medium temperature refrigeration applications. R744 (CO2) is becoming increasingly popular due to its excellent properties. With an Ozone Depleting Potential (ODP) of 0 and a Global Warming Potential (GWP) of 1, R744 (CO2) is a natural refrigerant.

AFK offer R744 (CO2) with a purity grade of 4.0 and 4.5. Please contact the team for further information.

Applications

  • Industrial Refrigeration
    Industrial Refrigeration
  • Commercial Refrigeration
    Commercial Refrigeration
  • Transport Refrigeration
    Transport Refrigeration

*Industrial heat extraction, Mobile air conditioning, Air to water heat pump systems

Packaging information

  • For more information on Carbon Dioxide for Technical Use please click here 
  • Store cylinders in a cool, dry, well ventilated area, out of direct sunlight
  • AFK operates a returnable cylinder fleet, empty cylinders are to be returned
  • AFK does fill CO2 in cylinders, yet this CO2 is not to be used in Food Application (CO2 E290 - the E indicates that it’s a Food Ingredient). 
  • For more information please contact AFK on +49 (0) 4185 7001-0 or via the Contact Us form

Product Features & Benefits

  • Refrigerant grade R744 (CO2) is available from AFK in gas (vapour) or liquid form
  • Non-flammable with a safety classification of A1
  • Compressors must be charged with modified polyolester oils, contact the compressor manufacturer for more information
  • Excellent thermodynamic properties and low energy requirements
  • R744 (CO2) can be used alongside other primary refrigerants such as hydrocarbon and ammonia
  • High operating pressures
  • Refrigeration systems that contain R744 (CO2) require strict controls on moisture, oil and other contaminants. Contact A-Gas should a CO2 analysis be required
  • Ultra-low moisture content, less than 5 ppm
  • Industrial grade R744 (CO2) has an average water content of up to 10 times higher than the R744 (CO2) available from A-Gas. This can result in the formation of Carbonic Acid and its build up will result in corrosion of machinery and pipework
  • Vapour R744 (CO2) cylinders are available for initial pressurisation of systems, whilst liquid R744 (CO2) provides the required charge your system needs to operate efficiently

Environmental Impact

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The information contained within this website is for guidance only, for further system specific advice please call AFK directly

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Advice and Support

Moving to a lower GWP refrigerant? For more information visit:
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+49 (0) 4185 7001-0