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R428A (RS-52)

R428A (RS-52) is a HFC blend, used as a replacement for R502 and R22 in low-temperature industrial refrigeration.

Packaging information





  • Available from A‑Gas wholesale partners - find a supplier 
  • 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 01275376600 or via the Contact Us form


Industrial Refrigeration


*Low temperature flooded systems

Product Features & Benefits

  • GWP: 2999
  • Close performance match for R507
  • Near azeotropic refrigerant blend containing R125, R134a, R290 and R600a
  • 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
  • Can replace R22 in low temperature applications
  • R428A (RS-52) is suitable for use in flooded systems
  • The information contained within this website is for guidance only - for further system-specific advice please contact us directly