Refrigerant Pressure Tables / R404A
Saturation pressure (bar, absolute) by temperature — dew point & bubble point.
Dew point and bubble point differ — this refrigerant is a zeotropic blend with temperature glide. Use the point matching your measurement (evaporator/condenser side) for charge and subcooling calculations.
GWP100: 3922 (AR5/AR4 basis, as used in the Enthalio app).
| Temp °C | Bubble point (bar) | Dew point (bar) |
|---|---|---|
| -50 | 0.8424 | 0.8101 |
| -48 | 0.9297 | 0.8954 |
| -46 | 1.0241 | 0.9877 |
| -44 | 1.1258 | 1.0872 |
| -42 | 1.2353 | 1.1945 |
| -40 | 1.3529 | 1.3098 |
| -38 | 1.4791 | 1.4336 |
| -36 | 1.6142 | 1.5664 |
| -34 | 1.7588 | 1.7084 |
| -32 | 1.9132 | 1.8603 |
| -30 | 2.0778 | 2.0223 |
| -28 | 2.2532 | 2.1951 |
| -26 | 2.4397 | 2.3789 |
| -24 | 2.6379 | 2.5743 |
| -22 | 2.8482 | 2.7818 |
| -20 | 3.071 | 3.0018 |
| -18 | 3.307 | 3.2348 |
| -16 | 3.5564 | 3.4814 |
| -14 | 3.82 | 3.742 |
| -12 | 4.0981 | 4.0171 |
| -10 | 4.3912 | 4.3073 |
| -8 | 4.7 | 4.6131 |
| -6 | 5.0249 | 4.9349 |
| -4 | 5.3665 | 5.2735 |
| -2 | 5.7253 | 5.6292 |
| 0 | 6.1018 | 6.0027 |
| 2 | 6.4967 | 6.3946 |
| 4 | 6.9104 | 6.8053 |
| 6 | 7.3436 | 7.2356 |
| 8 | 7.7969 | 7.6859 |
| 10 | 8.2708 | 8.1569 |
| 12 | 8.7659 | 8.6492 |
| 14 | 9.2829 | 9.1634 |
| 16 | 9.8224 | 9.7002 |
| 18 | 10.3851 | 10.2602 |
| 20 | 10.9715 | 10.844 |
| 22 | 11.5823 | 11.4523 |
| 24 | 12.2182 | 12.0859 |
| 26 | 12.8799 | 12.7454 |
| 28 | 13.5681 | 13.4315 |
| 30 | 14.2836 | 14.1449 |
| 32 | 15.0269 | 14.8865 |
| 34 | 15.799 | 15.6569 |
| 36 | 16.6006 | 16.457 |
| 38 | 17.4324 | 17.2876 |
| 40 | 18.2954 | 18.1495 |
| 42 | 19.1904 | 19.0436 |
| 44 | 20.1182 | 19.9709 |
| 46 | 21.0799 | 20.9323 |
| 48 | 22.0764 | 21.9288 |
| 50 | 23.1087 | 22.9615 |
| 52 | 24.178 | 24.0315 |
| 54 | 25.2854 | 25.1401 |
| 56 | 26.4322 | 26.2887 |
| 58 | 27.6199 | 27.4788 |
| 60 | 28.85 | 28.7122 |
Source: CoolProp (open thermophysical property library), same data basis as the Enthalio app.
Open PT calculator in Enthalio →