R-134a vs R-22
Side-by-side refrigerant comparison with pressure-temperature data
Properties Comparison
| Property | R-134a | R-22 |
|---|---|---|
| Type | Pure | Pure |
| GWP | 1430 | 1810 |
Pressure-Temperature Comparison (PSIG)
| Temp (°F) | R-134a (psig) | R-22 (psig) | Difference |
|---|---|---|---|
| -40°F | -7.2 | -3.8 | -3.4 |
| 40°F | 36.0 | 65.9 | -29.9 |
| 50°F | 43.6 | 79.1 | -35.5 |
| 60°F | 52.0 | 93.6 | -41.6 |
| 130°F | 155.9 | 272.8 | -116.9 |
| 140°F | 174.8 | 304.6 | -129.8 |
| 150°F | 195.4 | 338.9 | -143.5 |
Frequently Asked Questions
What is the difference between R-134a and R-22?
R-134a has a GWP of 1430 and is a pure refrigerant, while R-22 has a GWP of 1810 and is a pure refrigerant. They have different operating pressures, capacity characteristics, and application ranges.
Can I replace R-134a with R-22?
Direct replacement between R-134a and R-22 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-22?
R-134a has a lower GWP (1430) compared to R-22 (1810).