Refrigerant Gas R449B


R449B Refrigerant, alias R-449B. R449B refrigerant belongs to the HFO class and is mainly used to replace R22, R404a, R507 and R407 series refrigerants. R449B has zero ozone damage potential and low global warming potential. It is suitable for installation of new equipment and modification of existing equipment to improve energy efficiency and environmental characteristics.


R449B Refrigerant steel cylinder is a pressure container. It should be kept away from fire, heat and direct exposure to sunlight. It is usually stored in a cool, dry and ventilated warehouse. When handling, light loading and unloading should be carried out to prevent cylinder and valve and other accessories from damage.


R449B refrigerant, as the most widely used medium and low temperature refrigerant, is mainly used in volumetric, direct expansion, medium temperature commercial and industrial refrigeration systems, such as supermarkets, food industry, cold chain storage, independent storage system, etc.

Mixture CompositionR32,R125,R1234yf,R134a
Molecular Mass86.3667211797641
Boiling Point (1atm/℃)
Critical Temperature (℃)83.90875412541
Critical Pressure (Mpa)4.42808458280685
Critical Density (g/cm3)0.4793
GWP 100 yr1397
ASHRAEA1(non-toxic and non-flammable)