Refrigerant R454B


R454B Refrigerant, alias R-454B. R454B is the lowest GWP of 466 per unit application approved by EPA SNAP(3) of all ASHRAE classified A2L (low toxicity, mild flammability) refrigerants currently on the market. This is one-fifth of R-410A’s GWP, well below the 750 GWP limit being proposed, and provides long-term viability.


R454B Refrigerant steel cylinder is a pressurized container. Keep it away from fire, heat, and direct exposure to sunlight. Usually, store it 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.


R454B, as a medium and high temperature refrigerant widely used today, is mainly used in household air conditioners, small and medium-sized commercial air conditioners (small and medium-sized unit air conditioners, household central air conditioners, multi-on-line), mobile air conditioners, dehumidifiers, freeze dryers, Marine refrigeration equipment, industrial refrigeration and other refrigeration equipment.

Mixture CompositionR32,R1234yf
Molecular Mass62.6136334094355
Boiling Point (1atm/℃)
Critical Temperature (℃)80.938630885938
Critical Pressure (Mpa)5.0411073851552
Critical Density (g/cm3)0.4388
GWP 100 yr466