R513a the cost-effective green refrigerant alternative to R134a.

R513a (or Opteon ® XP10 as it is also known) is a readily available low global warming potential refrigerant which is a direct substitute for R134a and in many applications can used as a simple replacement for retrofitting. 

Because of its very close similarities to R134a a full and wide range of R513a refrigeration and chiller plant is already available, and because of the recent HFC price increases driven by EU F-Gas legislation it is now a more cost-effective refrigerant to use in new plant designs.

What is R513a?

  • Substitute for R134a
  • Almost identical physical and thermodynamic properties to R134a
  • Performance and efficiencies closely match that of R134a
  • Azeotropic refrigerant blend containing R1234yf and R134a
  • Non-flammable with a safety classification of A1
  • For oil dependant systems R513a is fully compatible with polyolester oil
  • Low GWP of 631
  • Can be used as a retrofit or in new installations


What new equipment can I request R513a to be used within?

  • All medium temperature chiller and industial heat pump applications with the same operating temperature ranges as R134a. (Water temperatures circa -10°C to 25°C in cooling and +30°C to +55°C in heating.)


R513a the cost-effective green refrigerant alternative to R134a.