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DewGas R-404A

Refrigerant R-404A
Commercial Refrigeration Gas

R-404A is a pseudo – azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, R-143a, and belongs to the HFC family of refrigerant, used in commercial refrigerator equipment for low and medium temperature ranges. It possesses outstanding properties as a refrigerant for showcases, refrigerated vehicles, ice makers, and other equipment.


  • Commercial Refrigeration: Refrigerated Counters, Cold Rooms, Display Units, Ice Makers, Refrigerated Vending Machines, Refrigerated Warehouses, Ice Skating Rinks
  • Industrial Refrigeration: Refrigeration systems for the Processing Industry, Chillers
  • Domestic Refrigeration: Freezer and Domestic Refrigerator
  • Transport Refrigeration: Truck and Van that carry Refrigerated Containers.


  • Although R-404A was developed as a substitute for refrigerants such as R-22 and R-502, and since it does not have mutual solubility with substances such as mineral oils or alkyl benzene oils conventionally used in R-22 and R-502, there is a need to either use compound oils having mutual solubility with substances such as polyol ester oils, or to take special measures to return oil to compressors.
  • Since R-404A is a pseudo- azeotropic mixed refrigerant, it does not undergo large changes in composition, but when filling equipment with it from a container, filling must begin from the liquid phase. Never carry out fillings from the gas phase under any circumstances.

DewGas R-404A Refrigerant adheres to quality as per AHRI-700 standard:

ISO Tank : 19000 kgs
Toner : 750 kgs net weight
Big Cylinder : 45 kgs net weight
Small Cylinder : 8 kgs net weight
Composition R- 143a(52%)  R-125(44%)   R-134a(4%)
Chemical Name 1,1,1- Tetrafluoroethane, Pentafluoroethane
1,1,1,2-  Tetrafluoroethane
Class HFC
ASHRAE Safety Classification A1 non – toxic and non – flammable
GWP* 3922
Recommended Lubricant POE
Crit. Temperature 72.12°C
Crit. Pressure 37.35 Bar
Boiling Point at 0 Bars (g) -46.22°C
Inspection Time Unit Value
Appearance Clear, Transparent and Colorless
Purity % (m/m) ≥ 99.8
Water Content % (m/m) ≤0.001
Evaporation Residue % (m/m) ≤0.01
Acid Content (as HCI) % (m/m) ≤0.0001
Non Condensable Gas % (m/m) ≤1.5