R-134a vs R-32
Side-by-side refrigerant comparison with pressure-temperature data
Properties Comparison
| Property | R-134a | R-32 |
|---|---|---|
| Type | Pure | Pure |
| GWP | 1430 | 675 |
Pressure-Temperature Comparison (PSIG)
| Temp (°F) | R-134a (psig) | R-32 (psig) | Difference |
|---|---|---|---|
| -40°F | -7.2 | 10.3 | -17.5 |
| 40°F | 36.0 | 130.5 | -94.5 |
| 50°F | 43.6 | 152.8 | -109.2 |
| 60°F | 52.0 | 177.3 | -125.3 |
| 130°F | 155.9 | 468.9 | -313.0 |
| 140°F | 174.8 | 519.5 | -344.7 |
| 150°F | 195.4 | 573.9 | -378.5 |
Frequently Asked Questions
What is the difference between R-134a and R-32?
R-134a has a GWP of 1430 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-134a with R-32?
Direct replacement between R-134a 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-134a or R-32?
R-32 has a lower GWP (675) compared to R-134a (1430).