R-227ea PT Chart
A1 GWP 3220Pure refrigerant (1,1,1,2,3,3,3-Heptafluoropropane). HFC.
Boiling Point
2.6°F
-16.3°C
Critical Temp
215.2°F
101.8°C
Critical Pressure
424.3 psia
29.25 bar
R-227ea Pressure-Temperature Graph
R-227ea Saturation Pressure Table
Blue values indicate vacuum (below atmospheric pressure).
| °F | °C | PSIG | PSIA | kPa | bar |
|---|---|---|---|---|---|
| -40 | -40.0 | -10.0 | 4.66 | 32.1 | 0.321 |
| -35 | -37.2 | -9.3 | 5.41 | 37.3 | 0.373 |
| -30 | -34.4 | -8.4 | 6.26 | 43.1 | 0.431 |
| -25 | -31.7 | -7.5 | 7.2 | 49.7 | 0.497 |
| -20 | -28.9 | -6.4 | 8.26 | 57.0 | 0.57 |
| -15 | -26.1 | -5.3 | 9.44 | 65.1 | 0.651 |
| -10 | -23.3 | -3.9 | 10.75 | 74.1 | 0.741 |
| -5 | -20.6 | -2.5 | 12.2 | 84.1 | 0.841 |
| 0 | -17.8 | -0.9 | 13.81 | 95.2 | 0.952 |
| 5 | -15.0 | 0.9 | 15.57 | 107.3 | 1.073 |
| 10 | -12.2 | 2.8 | 17.5 | 120.7 | 1.207 |
| 15 | -9.4 | 4.9 | 19.62 | 135.2 | 1.352 |
| 20 | -6.7 | 7.2 | 21.93 | 151.2 | 1.512 |
| 25 | -3.9 | 9.7 | 24.44 | 168.5 | 1.685 |
| 30 | -1.1 | 12.5 | 27.18 | 187.4 | 1.874 |
| 35 | 1.7 | 15.4 | 30.14 | 207.8 | 2.078 |
| 40 | 4.4 | 18.7 | 33.35 | 229.9 | 2.299 |
| 45 | 7.2 | 22.1 | 36.81 | 253.8 | 2.538 |
| 50 | 10.0 | 25.9 | 40.55 | 279.6 | 2.796 |
| 55 | 12.8 | 29.9 | 44.57 | 307.3 | 3.073 |
| 60 | 15.6 | 34.2 | 48.88 | 337.0 | 3.37 |
| 65 | 18.3 | 38.8 | 53.5 | 368.9 | 3.689 |
| 70 | 21.1 | 43.8 | 58.45 | 403.0 | 4.03 |
| 75 | 23.9 | 49.0 | 63.74 | 439.5 | 4.395 |
| 80 | 26.7 | 54.7 | 69.38 | 478.4 | 4.784 |
| 85 | 29.4 | 60.7 | 75.39 | 519.8 | 5.198 |
| 90 | 32.2 | 67.1 | 81.79 | 563.9 | 5.639 |
| 95 | 35.0 | 73.9 | 88.59 | 610.8 | 6.108 |
| 100 | 37.8 | 81.1 | 95.8 | 660.5 | 6.605 |
| 105 | 40.6 | 88.8 | 103.45 | 713.2 | 7.132 |
| 110 | 43.3 | 96.8 | 111.54 | 769.1 | 7.691 |
| 115 | 46.1 | 105.4 | 120.11 | 828.1 | 8.281 |
| 120 | 48.9 | 114.5 | 129.15 | 890.5 | 8.905 |
| 125 | 51.7 | 124.0 | 138.7 | 956.3 | 9.563 |
| 130 | 54.4 | 134.1 | 148.77 | 1025.7 | 10.257 |
| 135 | 57.2 | 144.7 | 159.38 | 1098.9 | 10.989 |
| 140 | 60.0 | 155.9 | 170.55 | 1175.9 | 11.759 |
| 145 | 62.8 | 167.6 | 182.3 | 1256.9 | 12.569 |
| 150 | 65.6 | 180.0 | 194.65 | 1342.1 | 13.421 |
| 155 | 68.3 | 192.9 | 207.63 | 1431.6 | 14.316 |
| 160 | 71.1 | 206.6 | 221.26 | 1525.5 | 15.255 |
| 165 | 73.9 | 220.9 | 235.55 | 1624.1 | 16.241 |
| 170 | 76.7 | 235.9 | 250.55 | 1727.5 | 17.275 |
| 175 | 79.4 | 251.6 | 266.28 | 1836.0 | 18.36 |
| 180 | 82.2 | 268.1 | 282.77 | 1949.7 | 19.497 |
| 185 | 85.0 | 285.4 | 300.06 | 2068.8 | 20.688 |
| 190 | 87.8 | 303.5 | 318.18 | 2193.8 | 21.938 |
| 195 | 90.6 | 322.5 | 337.18 | 2324.8 | 23.248 |
| 200 | 93.3 | 342.4 | 357.11 | 2462.2 | 24.622 |
| 205 | 96.1 | 363.3 | 378.04 | 2606.5 | 26.065 |
| 210 | 98.9 | 385.4 | 400.07 | 2758.4 | 27.584 |
Properties
| ASHRAE Designation | 227ea |
| Safety Classification | A1 (non-flammable, low toxicity) |
| GWP (AR5) | 3220 |
| ODP | 0 |
| Molecular Weight | 170.03 g/mol |
| Boiling Point (1 atm) | 2.6°F / -16.3°C |
| Critical Temperature | 215.2°F / 101.8°C |
| Critical Pressure | 424.3 psia / 29.25 bar |
| Category | HFC |
Common Applications
- Fire suppression (FM-200)
- Pharmaceutical propellant