What is R 32 gas

R 32 gas

R-32, also known as HFC-32, is an organic hydrofluorocarbon compound with the formula CH₂F₂. It’s a colorless odorless, mildly flammable gas which is insoluble in water. 

Despite its next-gen moniker, R-32 has been on the refrigerant scene for quite a while, although not in its pure form. R-32 makes up one-half of R-410A, a two-part refrigerant used as the primary replacement for R-22 around the world


included for its fire suppression properties, rendering moot the flammability concerns that disqualified pure R-32 from consideration as a widespread replacement of R-22 at the time of R-410A’s development.

In recent years, R-32 has seen its usage – mostly as a replacement for R-410A – skyrocket as manufacturers seek lower-GWP alternatives to R-410A.




The chief benefits of R-32 are its efficiency as well as reduced environmental impact relative to HCFCs like R-22 and refrigerant blends like R-410A. Its performance and operating characteristics are very similar to R-410A, yet with roughly one-third of the Global Warming Potential.

There’s very little difference between R-32 and R-410A from a performance standpoint, but R-32 is significantly more efficient. For example, a theoretical 36” x 70” 2-row condenser running on R-32 would need 40% less refrigerant than the same coil running on R-410A to meet the same requirement. 


Concern around R-32’s designation as mildly flammable has waned in recent years as millions of units have been installed and used safely, and due to the fact that actual ignition of R-32 is very difficult, due to its low burning velocity...

The difference between the operating pressures of the two refrigerants should be noted, too. While not drastic, the difference isn't insignificant.


Another potential drawback is the unknown future of R-32. Despite its low GWP relative to older HFCs, 675 is a fairly high number when compared to that of the refrigerants that have been developed in the years following R-32’s entrée onto the refrigerant landscape. 


in short .....R-32 is the most balanced refrigerant in terms of environmental impact, energy efficiency, safety, and cost-effectiveness


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