Refrigerant Pressure Tables / R454C
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: 148 (AR5/AR4 basis, as used in the Enthalio app).
| Temp °C | Bubble point (bar) | Dew point (bar) |
|---|---|---|
| -50 | 0.8175 | 0.5494 |
| -48 | 0.9016 | 0.6104 |
| -46 | 0.9923 | 0.6767 |
| -44 | 1.0901 | 0.7486 |
| -42 | 1.1953 | 0.8265 |
| -40 | 1.3082 | 0.9107 |
| -38 | 1.4293 | 1.0015 |
| -36 | 1.559 | 1.0994 |
| -34 | 1.6976 | 1.2048 |
| -32 | 1.8455 | 1.3179 |
| -30 | 2.0032 | 1.4392 |
| -28 | 2.1711 | 1.5691 |
| -26 | 2.3496 | 1.708 |
| -24 | 2.5391 | 1.8563 |
| -22 | 2.7401 | 2.0145 |
| -20 | 2.953 | 2.1829 |
| -18 | 3.1782 | 2.3622 |
| -16 | 3.4163 | 2.5526 |
| -14 | 3.6676 | 2.7547 |
| -12 | 3.9326 | 2.9689 |
| -10 | 4.2119 | 3.1958 |
| -8 | 4.5057 | 3.4357 |
| -6 | 4.8148 | 3.6893 |
| -4 | 5.1394 | 3.957 |
| -2 | 5.4801 | 4.2394 |
| 0 | 5.8374 | 4.5369 |
| 2 | 6.2117 | 4.8502 |
| 4 | 6.6036 | 5.1797 |
| 6 | 7.0136 | 5.526 |
| 8 | 7.4421 | 5.8897 |
| 10 | 7.8897 | 6.2714 |
| 12 | 8.3568 | 6.6717 |
| 14 | 8.8439 | 7.0911 |
| 16 | 9.3517 | 7.5303 |
| 18 | 9.8805 | 7.9899 |
| 20 | 10.4309 | 8.4705 |
| 22 | 11.0035 | 8.9729 |
| 24 | 11.5986 | 9.4976 |
| 26 | 12.217 | 10.0454 |
| 28 | 12.8591 | 10.617 |
| 30 | 13.5254 | 11.2132 |
| 32 | 14.2164 | 11.8345 |
| 34 | 14.9328 | 12.482 |
| 36 | 15.675 | 13.1562 |
| 38 | 16.4436 | 13.8582 |
| 40 | 17.2392 | 14.5887 |
| 42 | 18.0622 | 15.3486 |
| 44 | 18.9132 | 16.1389 |
| 46 | 19.7929 | 16.9605 |
| 48 | 20.7016 | 17.8145 |
| 50 | 21.64 | 18.702 |
| 52 | 22.6086 | 19.6241 |
| 54 | 23.608 | 20.582 |
| 56 | 24.6386 | 21.577 |
| 58 | 25.701 | 22.6105 |
| 60 | 26.7956 | 23.6842 |
Source: CoolProp (open thermophysical property library), same data basis as the Enthalio app.
Open PT calculator in Enthalio →