R434A (RS-45)


R434A (RS-45) is a HFC blend, used as a replacement for R22 in low, medium and high temperature refrigeration applications. With a Global Warming Potential (GWP) of 3238 R434A (RS-45) is coming under scrutiny.


  • Commercial Refrigeration
    Commercial Refrigeration
  • Industrial Refrigeration
    Industrial Refrigeration
  • Commercial Air Conditioning
    Commercial Air Conditioning
  • Industrial Air Conditioning
    Industrial Air Conditioning
  • Other
    Other *

*Flooded systems down to -35oC

Packaging information

  • Contact A-Gas for pack sizes
  • Available from A-Gas wholesale partners. Use the "Find a supplier" box to the right for further details
  • A-Gas product cylinders are fitted with a Residual Pressure Device (RPD) to ensure used refrigerant or any other substance cannot be reintroduced into a cylinder
  • Store cylinders in a cool, dry, well ventilated area, out of direct sunlight
  • A-Gas operates a returnable cylinder fleet, empty cylinders are to be returned to an A-Gas wholesale partner
  • For alternative or larger package sizes please contact A-Gas on 0215518790 or via the Contact Us form

Product Features & Benefits

  • Substitute for R22
  • Zeotropic refrigerant blend containing R125, R143a, R134a and Isobutane
  • Refrigerant must be charged from the liquid phase to ensure accurate composition
  • A-Gas refrigerant cylinders have dual port valves, making liquid offtake easier
  • Non-flammable with a safety classification of A1
  • Compressors can be charged with most current oils, however polyolester is preferred, contact the compressor manufacturer for more information
  • Effective in low, medium and high temperature applications
  • Considerably lower discharge temperature than R22
  • Similar mass flow rate to R404A
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