R-404A Pressure-Temperature Table
| R-404A | ||
|---|---|---|
| Pressure (psig) | Sat. Temp (°F) | Publisher spread (°F) |
| 15.7 | -20°F | 0.43 |
| 19.3 | -15°F | 0.50 |
| 23.2 | -10°F | 0.50 |
| 27.5 | -5°F | 0.44 |
| 32.1 | 0°F | 0.50 |
| 37 | 5°F | 0.64 |
| 42.4 | 10°F | 0.64 |
| 48.2 | 15°F | 0.67 |
| 54.5 | 20°F | 0.62 |
| 61.2 | 25°F | 0.64 |
| 68.4 | 30°F | 0.60 |
| 76.1 | 35°F | 0.63 |
| 84.4 | 40°F | 0.59 |
| 93.2 | 45°F | 0.56 |
| 103 | 50°F | 0.32 |
| 113 | 55°F | 0.30 |
| 123 | 60°F | 0.57 |
| 135 | 65°F | 0.22 |
| 147 | 70°F | 0.17 |
| 159 | 75°F | 0.42 |
| 173 | 80°F | 0.15 |
| 187 | 85°F | 0.18 |
| 202 | 90°F | 0.13 |
| 218 | 95°F | 0.03 |
| 234 | 100°F | 0.18 |
| 252 | 105°F | 0.03 |
| 270 | 110°F | 0.11 |
| 289 | 115°F | 0.15 |
| 310 | 120°F | 0.02 |
| 331 | 125°F | 0.05 |
| 353 | 130°F | 0.11 |
About the spread column. It is the widest gap in saturation temperature between the published tables we hold, at that pressure, on the saturation column. Across this chart the widest is 0.67°F, at 48.2 psig. Our table and 1 other published table are compared here: 1 is a separate publisher. A narrow spread means the charts agree, which is not the same as the charts being right: they are all computed from equations of state fitted to lab data, and no field measurement settles it.
- Checked against Arkema Forane R-404A, 29 of 31 shipped cells within 1.0 psig on its vapor column, widest gap 1.2 psig at 60F; its liquid column runs 1.1 to 3.0 psig higher, which is the bubble-versus-dew glide; re-derived in DEGREES against the vapor column, the column our base tracks, it differs by at most 0.67 F at every one of the 31 pressures we ship [separate publisher]
A separate publisher can catch a transcription, edition or rounding error. A cross-check marked same model resolves to the same equation of state as the base table, so it is a consistency check rather than independent confirmation. One marked same printing prints numbers identical to another table listed here, so the two are one witness and we do not count them twice. Sources last re-verified 2026-08-25.
These are the same locked R-404A data the Intry calculator interpolates. The published tables they were checked against, and how closely each agrees, are named in the citation that prints with the chart above. Free reference from intrysys.com, updated August 25, 2026.