R404A pressure–temperature chart
Saturation pressure and temperature of R404A: convert temperature to pressure or pressure to temperature, and see the full table.
Refrigerant
- Safety class
- A1
- GWP (AR4)
- 3,922
- Temperature glide
- ≈ 0.7 K
Liquid (bubble)
5.09 barg
6.10 bar a · 73.8 psig
Vapor (dew)
4.99 barg
6.01 bar a · 72.4 psig
Type: Near-azeotropic blendSafety class: A1GWP (AR4): 3,922Temperature glide: ≈ 0.7 KCritical point: 72.1 °C · 37.3 bar
R404A — Pressure–temperature table
| °C | °F | Liquid (bubble) bar a | Liquid (bubble) barg | Vapor (dew) bar a | Vapor (dew) barg | Vapor (dew) psig |
|---|---|---|---|---|---|---|
| -40 | -40.0 | 1.35 | 0.34 | 1.31 | 0.30 | 4.3 |
| -38 | -36.4 | 1.48 | 0.46 | 1.43 | 0.42 | 6.1 |
| -36 | -32.8 | 1.61 | 0.60 | 1.56 | 0.55 | 8 |
| -34 | -29.2 | 1.76 | 0.74 | 1.71 | 0.69 | 10 |
| -32 | -25.6 | 1.91 | 0.90 | 1.86 | 0.84 | 12.2 |
| -30 | -22.0 | 2.08 | 1.06 | 2.02 | 1.01 | 14.6 |
| -28 | -18.4 | 2.25 | 1.24 | 2.19 | 1.18 | 17.1 |
| -26 | -14.8 | 2.44 | 1.42 | 2.38 | 1.36 | 19.8 |
| -24 | -11.2 | 2.63 | 1.62 | 2.57 | 1.56 | 22.6 |
| -22 | -7.6 | 2.84 | 1.83 | 2.78 | 1.76 | 25.6 |
| -20 | -4.0 | 3.07 | 2.05 | 3.00 | 1.99 | 28.8 |
| -18 | -0.4 | 3.30 | 2.29 | 3.23 | 2.22 | 32.2 |
| -16 | 3.2 | 3.55 | 2.54 | 3.48 | 2.47 | 35.8 |
| -14 | 6.8 | 3.82 | 2.80 | 3.74 | 2.73 | 39.5 |
| -12 | 10.4 | 4.10 | 3.08 | 4.02 | 3.00 | 43.6 |
| -10 | 14.0 | 4.39 | 3.38 | 4.31 | 3.30 | 47.8 |
| -8 | 17.6 | 4.70 | 3.69 | 4.61 | 3.60 | 52.2 |
| -6 | 21.2 | 5.02 | 4.01 | 4.94 | 3.92 | 56.9 |
| -4 | 24.8 | 5.37 | 4.35 | 5.27 | 4.26 | 61.8 |
| -2 | 28.4 | 5.72 | 4.71 | 5.63 | 4.62 | 67 |
| 0 | 32.0 | 6.10 | 5.09 | 6.01 | 4.99 | 72.4 |
| 2 | 35.6 | 6.50 | 5.48 | 6.40 | 5.38 | 78.1 |
| 4 | 39.2 | 6.91 | 5.90 | 6.81 | 5.79 | 84 |
| 6 | 42.8 | 7.34 | 6.33 | 7.23 | 6.22 | 90.2 |
| 8 | 46.4 | 7.80 | 6.78 | 7.68 | 6.67 | 96.8 |
| 10 | 50.0 | 8.27 | 7.26 | 8.16 | 7.14 | 103.6 |
| 12 | 53.6 | 8.77 | 7.75 | 8.65 | 7.64 | 110.7 |
| 14 | 57.2 | 9.28 | 8.27 | 9.16 | 8.15 | 118.2 |
| 16 | 60.8 | 9.82 | 8.81 | 9.70 | 8.69 | 126 |
| 18 | 64.4 | 10.38 | 9.37 | 10.26 | 9.25 | 134.2 |
| 20 | 68.0 | 10.97 | 9.96 | 10.85 | 9.84 | 142.7 |
| 22 | 71.6 | 11.58 | 10.57 | 11.46 | 10.44 | 151.5 |
| 24 | 75.2 | 12.22 | 11.21 | 12.09 | 11.08 | 160.6 |
| 26 | 78.8 | 12.88 | 11.87 | 12.75 | 11.73 | 170.2 |
| 28 | 82.4 | 13.57 | 12.56 | 13.43 | 12.42 | 180.1 |
| 30 | 86.0 | 14.29 | 13.28 | 14.14 | 13.13 | 190.4 |
| 32 | 89.6 | 15.03 | 14.02 | 14.88 | 13.87 | 201.2 |
| 34 | 93.2 | 15.80 | 14.79 | 15.66 | 14.64 | 212.4 |
| 36 | 96.8 | 16.60 | 15.59 | 16.46 | 15.44 | 224 |
| 38 | 100.4 | 17.43 | 16.42 | 17.29 | 16.27 | 236 |
| 40 | 104.0 | 18.29 | 17.28 | 18.15 | 17.14 | 248.5 |
| 42 | 107.6 | 19.19 | 18.17 | 19.05 | 18.03 | 261.5 |
| 44 | 111.2 | 20.12 | 19.10 | 19.98 | 18.96 | 275 |
| 46 | 114.8 | 21.08 | 20.06 | 20.94 | 19.92 | 289 |
| 48 | 118.4 | 22.07 | 21.06 | 21.93 | 20.92 | 303.4 |
| 50 | 122.0 | 23.10 | 22.09 | 22.96 | 21.95 | 318.3 |
| 52 | 125.6 | 24.18 | 23.16 | 24.04 | 23.02 | 333.9 |
| 54 | 129.2 | 25.29 | 24.28 | 25.15 | 24.14 | 350 |
| 56 | 132.8 | 26.44 | 25.43 | 26.30 | 25.28 | 366.7 |
| 58 | 136.4 | 27.63 | 26.61 | 27.48 | 26.47 | 383.9 |
| 60 | 140.0 | 28.85 | 27.84 | 28.71 | 27.70 | 401.7 |
bar a = absolute (bar a) · barg = gauge (barg) (bar a − 1,013)
All refrigerants
- R507AAzeotropic blend · A1 · GWP 3,9850 °C: 6.25 bar a
- R134aPure substance · A1 · GWP 1,4300 °C: 2.93 bar a
- R449AZeotropic blend · Temperature glide ≈ 4.5 K · A1 · GWP 1,3970 °C: 6.12 bar a
- R448AZeotropic blend · Temperature glide ≈ 5 K · A1 · GWP 1,3870 °C: 6.24 bar a
- R407CZeotropic blend · Temperature glide ≈ 7 K · A1 · GWP 1,7740 °C: 5.68 bar a
- R410ANear-azeotropic blend · A1 · GWP 2,0880 °C: 7.99 bar a
- R32Pure substance · A2L · GWP 6750 °C: 8.13 bar a
- R22Pure substance · A1 · GWP 1,8100 °C: 4.98 bar a
- R290Pure substance · A3 · GWP 30 °C: 4.74 bar a
- R744Pure substance · A1 · GWP 10 °C: 34.85 bar a
- R717Pure substance · B2L · GWP 00 °C: 4.29 bar a
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