R-290 vs R-32
Side-by-side refrigerant comparison with pressure-temperature data
Properties Comparison
| Property | R-290 | R-32 |
|---|---|---|
| Type | Pure | Pure |
| GWP | 3 | 675 |
Pressure-Temperature Comparison (PSIG)
| Temp (°F) | R-290 (psig) | R-32 (psig) | Difference |
|---|---|---|---|
| -40°F | -3.1 | 10.3 | -13.4 |
| 40°F | 62.4 | 130.5 | -68.1 |
| 50°F | 75.1 | 152.8 | -77.7 |
| 60°F | 89.2 | 177.3 | -88.1 |
| 130°F | 263.9 | 468.9 | -205.0 |
| 140°F | 295.1 | 519.5 | -224.4 |
| 150°F | 328.8 | 573.9 | -245.1 |
Frequently Asked Questions
What is the difference between R-290 and R-32?
R-290 has a GWP of 3 and is a pure refrigerant, while R-32 has a GWP of 675 and is a pure refrigerant. They have different operating pressures, capacity characteristics, and application ranges.
Can I replace R-290 with R-32?
Direct replacement between R-290 and R-32 is not recommended without thorough system evaluation. Check compressor compatibility, oil type, pressure ratings, and safety classification before any refrigerant change.
Which has lower GWP, R-290 or R-32?
R-290 has a lower GWP (3) compared to R-32 (675).