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Use the interactive PT chart with calculator →R-404A Pressure Temperature Chart
Saturation pressure (PSIG) for R-404A at temperatures from -40°F to 120°F. The workhorse of commercial refrigeration.
| Temp (°F) | Pressure (PSIG) |
|---|---|
| -40°F | 7.3 |
| -20°F | 25.1 |
| 0°F | 49.0 |
| 20°F | 80.0 |
| 40°F | 119.6 |
| 60°F | 169.4 |
| 80°F | 231.3 |
| 100°F | 307.5 |
| 120°F | 400.0 |
Frequently Asked Questions
What is the saturation pressure of R-404A at 40°F?
At 40°F, R-404A has a saturation pressure of 119.6 PSIG. This is a common suction pressure reference point for medium-temperature refrigeration applications.
What is R-404A used for?
R-404A is a near-azeotropic HFC blend primarily used in commercial refrigeration including supermarket display cases, cold storage, transport refrigeration, and ice machines.
Is R-404A being phased out?
Yes, R-404A has a very high GWP of 3922 and is being phased down under the AIM Act and EPA regulations. Common replacements include R-448A, R-449A, and R-452A for medium-temperature applications.