R1234ze(e) pressure–temperature chart
R1234ze(e) is a pure fluid. Its normal boiling point is -19.0 °C; the critical pressure is 36.3 bar. At the AHRI 540 air-conditioning rating point — 7.2 °C evaporating, 54.4 °C condensing — the saturation pressures are 2.80 and 11.14 bar, a pressure ratio of 3.98.
Units: SI · US customary
Saturation table, -75 to 105 °C
| °C | kPa abs | bar abs | psig | hfg kJ/kg | ρ liquid kg/m³ | ρ vapour kg/m³ |
|---|---|---|---|---|---|---|
| -75 | 3.8 | 0.038 | -14.2 | 225.8 | 1438 | 0.26 |
| -70 | 5.5 | 0.055 | -13.9 | 223.2 | 1426 | 0.37 |
| -65 | 7.9 | 0.079 | -13.5 | 220.5 | 1413 | 0.53 |
| -60 | 11.2 | 0.112 | -13.1 | 217.9 | 1401 | 0.72 |
| -55 | 15.4 | 0.154 | -12.5 | 215.2 | 1388 | 0.98 |
| -50 | 20.9 | 0.209 | -11.7 | 212.6 | 1375 | 1.30 |
| -45 | 27.9 | 0.279 | -10.6 | 210.0 | 1362 | 1.71 |
| -40 | 36.7 | 0.367 | -9.4 | 207.3 | 1350 | 2.21 |
| -35 | 47.7 | 0.477 | -7.8 | 204.6 | 1336 | 2.81 |
| -30 | 61.1 | 0.611 | -5.8 | 201.8 | 1323 | 3.55 |
| -25 | 77.4 | 0.774 | -3.5 | 199.0 | 1310 | 4.43 |
| -20 | 96.9 | 0.969 | -0.6 | 196.2 | 1296 | 5.47 |
| -15 | 120.1 | 1.201 | 2.7 | 193.3 | 1283 | 6.70 |
| -10 | 147.4 | 1.474 | 6.7 | 190.3 | 1269 | 8.13 |
| -5 | 179.4 | 1.794 | 11.3 | 187.3 | 1255 | 9.79 |
| 0 | 216.6 | 2.166 | 16.7 | 184.2 | 1240 | 11.71 |
| 5 | 259.3 | 2.593 | 22.9 | 181.0 | 1225 | 13.92 |
| 10 | 308.4 | 3.084 | 30.0 | 177.6 | 1210 | 16.45 |
| 15 | 364.2 | 3.642 | 38.1 | 174.2 | 1195 | 19.33 |
| 20 | 427.3 | 4.273 | 47.3 | 170.6 | 1179 | 22.61 |
| 25 | 498.5 | 4.985 | 57.6 | 166.9 | 1163 | 26.32 |
| 30 | 578.3 | 5.783 | 69.2 | 163.1 | 1146 | 30.52 |
| 35 | 667.4 | 6.674 | 82.1 | 159.0 | 1129 | 35.27 |
| 40 | 766.5 | 7.665 | 96.5 | 154.8 | 1112 | 40.64 |
| 45 | 876.1 | 8.761 | 112.4 | 150.4 | 1093 | 46.69 |
| 50 | 997.2 | 9.972 | 129.9 | 145.7 | 1074 | 53.54 |
| 55 | 1130.4 | 11.304 | 149.3 | 140.7 | 1054 | 61.29 |
| 60 | 1276.6 | 12.766 | 170.5 | 135.5 | 1033 | 70.08 |
| 65 | 1436.5 | 14.365 | 193.6 | 129.9 | 1010 | 80.09 |
| 70 | 1611.0 | 16.110 | 219.0 | 123.8 | 986 | 91.56 |
| 75 | 1801.1 | 18.011 | 246.5 | 117.3 | 961 | 104.80 |
| 80 | 2007.7 | 20.077 | 276.5 | 110.2 | 933 | 120.23 |
| 85 | 2232.1 | 22.321 | 309.0 | 102.3 | 902 | 138.48 |
| 90 | 2475.5 | 24.755 | 344.3 | 93.4 | 867 | 160.57 |
| 95 | 2739.5 | 27.395 | 382.6 | 83.0 | 827 | 188.22 |
| 100 | 3026.0 | 30.260 | 424.2 | 70.4 | 777 | 225.01 |
| 105 | 3337.8 | 33.378 | 469.4 | 52.9 | 708 | 281.02 |
Pressures are absolute in kPa and bar, gauge in psig (at 101.325 kPa atmospheric); hfg is the latent heat of vaporisation at the dew pressure; densities are saturated liquid and saturated vapour. Computed with CoolProp 8.0.0, the open-source property library the solver runs on, sampled every 0.5 K and printed every 5 K — the same tables the builder reads when it solves a circuit on R1234ze(e).
R1234ze(e) compressors in the catalog
8 compressor maps run on R1234ze(e), each a page with its AHRI 540 / EN 12900 map across the published envelope, and each selectable in the builder. Read any of them at your own evaporating and condensing temperatures →
The largest at the air-conditioning point
- Danfoss DSG480-4 (R1234ze(E) scroll, 60 Hz, A/C) — 137.4 kW at 7.2 / 54.4 °C
- Danfoss DSG380-4 (R1234ze(E) scroll, 60 Hz, A/C) — 109.8 kW at 7.2 / 54.4 °C
- Danfoss DSG480-4 (R1234ze(E) scroll, 50 Hz, MT) — 104.1 kW at 7.2 / 54.4 °C
- Danfoss DSG295-4 (R1234ze(E) scroll, 60 Hz, A/C) — 90.4 kW at 7.2 / 54.4 °C
- Danfoss DSG380-4 (R1234ze(E) scroll, 50 Hz, MT) — 83.1 kW at 7.2 / 54.4 °C
- Danfoss DSG240-4 (R1234ze(E) scroll, 60 Hz, A/C) — 73.4 kW at 7.2 / 54.4 °C
- Danfoss DSG295-4 (R1234ze(E) scroll, 50 Hz, MT) — 67.7 kW at 7.2 / 54.4 °C
- Danfoss DSG240-4 (R1234ze(E) scroll, 50 Hz, MT) — 55.2 kW at 7.2 / 54.4 °C
Open the R1234ze(e) chart in the app — the pressure–temperature line drawn, readable at any point, with a compressor's envelope over it — or open the builder and draw a circuit on R1234ze(e): the solver finds its evaporating and condensing temperatures from the coils and the compressor's map.