1. Refrigerant gas R404A substitute for R22 and R502 2. low&moderate temperature

Refrigerant R404 Physical properties
Molecular formula
Mmolecular weight				97.60
Boiling point 101.3KPa(°C)				-46.60
Freezing point 101.3KPa (°C)				—
Density 30°C(kg/m3)				1017.20
Critical temperature (°C)				72.10
Critical pressure (MPa)				3.74
ODP				0.00
GWP				3800.00

Quality index
Purity				≥99.8%
Water content				≤0.001%
Acidity				≤0.00001%
Evaporation residue				≤0.01%
Chloride content				≤0.0001%
Appearance				Colorless and clear
Odor				Odorless

A longterm nonozone depleting replacement for R502 and R22 in lowand mediumtemperature commerical refrigeration systems.

R404A is made up of  the components  HFC125,HFC143a and HFC134a.The stability of R404A can be characterized based on the stability of its refrigerant components,in this case,by  the known stability of  R134a.

Retrofit:R-404A can be used to retrofit many existing R502 systems. The physical and thermodynamic properties of the blend cause it to behave much like R502 when used as a retrofit but it is not intended to be a direct “dropin” for R502 systems. Due to higher operating pressures associated with the use of R404A as opposed to R502, OEM product specific retrofit recommendations should be consulted for any and all pressure relief modifications and/or requirements.

 

refrigerant