Hello readers welcome to the new post. Here we will discuss the R407A Pressure-Temperature Chart. R407 A is gases mixture used as a refrigerant. It is an azeotropic blend of HFC32 or difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane (HFC-134a). It was made as a close configuration with R22 featues and flow rates, which makes it the best energy-efficient retrofit for R22 in medium and low-temperature refrigeration systems for food storage uses, not for AC systems and flooded evaporations. It should be used with synthetic oil. Its global warming potential is 2107. Let’s get started with the R407A Pressure-Temperature Chart.
R407A Pressure-Temperature Chart
| R-407A (psig)* Pressure-Temperature Chart | |||||||
| Temp. ( F) | Temp. ( C) | Pressure Liquid |
Vapor Pressure | Temp. ( F) | Pressure Liquid |
Vapor Pressure | Temp. ( C) |
| -49 | -45.0 | 0.0 | 8.3 | 51 | 106.2 | 87.9 | 10.6 |
| -48 | -44.4 | 0.4 | 7.7 | 52 | 108.2 | 89.7 | 11.1 |
| -47 | -43.9 | 0.8 | 7.1 | 53 | 110.2 | 91.6 | 11.7 |
| -46 | -43.3 | 1.2 | 6.4 | 54 | 112.3 | 93.4 | 12.2 |
| -45 | -42.8 | 1.7 | 5.7 | 55 | 114.4 | 95.3 | 12.8 |
| -44 | -42.2 | 2.1 | 5.0 | 56 | 116.5 | 97.3 | 13.3 |
| -43 | -41.7 | 2.5 | 4.3 | 57 | 118.6 | 99.2 | 13.9 |
| -42 | -41.1 | 3.0 | 3.5 | 58 | 120.8 | 101.2 | 14.4 |
| -41 | -40.6 | 3.5 | 2.8 | 59 | 123.0 | 103.2 | 15.0 |
| -40 | -40.0 | 3.9 | 2.0 | 60 | 125.2 | 105.2 | 15.6 |
| -39 | -39.4 | 4.4 | 1.2 | 61 | 127.4 | 107.3 | 16.1 |
| -38 | -38.9 | 4.9 | 0.4 | 62 | 129.7 | 109.3 | 16.7 |
| -37 | -38.3 | 5.4 | 0.2 | 63 | 132.0 | 111.5 | 17.2 |
| -36 | -37.8 | 5.9 | 0.6 | 64 | 134.3 | 113.6 | 17.8 |
| -35 | -37.2 | 6.4 | 1.0 | 65 | 136.7 | 115.8 | 18.3 |
| -34 | -36.7 | 7.0 | 1.5 | 66 | 139.0 | 117.9 | 18.9 |
| -33 | -36.1 | 7.5 | 1.9 | 67 | 141.4 | 120.2 | 19.4 |
| -32 | -35.6 | 8.1 | 2.3 | 68 | 143.9 | 122.4 | 20.0 |
| -31 | -35.0 | 8.6 | 2.8 | 69 | 146.3 | 124.7 | 20.6 |
| -30 | -34.4 | 9.2 | 3.3 | 70 | 148.8 | 127.0 | 21.1 |
| -29 | -33.9 | 9.8 | 3.7 | 71 | 151.3 | 129.3 | 21.7 |
| -28 | -33.3 | 10.4 | 4.2 | 72 | 153.9 | 131.7 | 22.2 |
| -27 | -32.8 | 11.0 | 4.7 | 73 | 156.5 | 134.0 | 22.8 |
| -26 | -32.2 | 11.6 | 5.2 | 74 | 159.1 | 136.5 | 23.3 |
| -25 | -31.7 | 12.2 | 5.8 | 75 | 161.7 | 138.9 | 23.9 |
| -24 | -31.1 | 12.9 | 6.3 | 76 | 164.4 | 141.4 | 24.4 |
| -23 | -30.6 | 13.5 | 6.8 | 77 | 167.0 | 143.9 | 25.0 |
| -22 | -30.0 | 14.2 | 7.4 | 78 | 169.8 | 146.4 | 25.6 |
| -21 | -29.4 | 14.9 | 7.9 | 79 | 172.5 | 149.0 | 26.1 |
| -20 | -28.9 | 15.6 | 8.5 | 80 | 175.3 | 151.6 | 26.7 |
| -19 | -28.3 | 16.3 | 9.1 | 81 | 178.1 | 154.2 | 27.2 |
| -18 | -27.8 | 17.0 | 9.7 | 82 | 181.0 | 156.9 | 27.8 |
| -17 | -27.2 | 17.7 | 10.3 | 83 | 183.8 | 159.6 | 28.3 |
| -16 | -26.7 | 18.5 | 10.9 | 84 | 186.7 | 162.3 | 28.9 |
| -15 | -26.1 | 19.2 | 11.5 | 85 | 189.7 | 165.1 | 29.4 |
| -14 | -25.6 | 20.0 | 12.2 | 86 | 192.7 | 167.8 | 30.0 |
| -13 | -25.0 | 20.8 | 12.8 | 87 | 195.7 | 170.7 | 30.6 |
| -12 | -24.4 | 21.6 | 13.5 | 88 | 198.7 | 173.5 | 31.1 |
| -11 | -23.9 | 22.4 | 14.2 | 89 | 201.7 | 176.4 | 31.7 |
| -10 | -23.3 | 23.2 | 14.9 | 90 | 204.8 | 179.3 | 32.2 |
| -9 | -22.8 | 24.0 | 15.6 | 91 | 208.0 | 182.3 | 32.8 |
| -8 | -22.2 | 24.9 | 16.3 | 92 | 211.1 | 185.3 | 33.3 |
| -7 | -21.7 | 25.8 | 17.0 | 93 | 214.3 | 188.3 | 33.9 |
| -6 | -21.1 | 26.6 | 17.8 | 94 | 217.6 | 191.4 | 34.4 |
| -5 | -20.6 | 27.5 | 18.5 | 95 | 220.8 | 194.5 | 35.0 |
| -4 | -20.0 | 28.4 | 19.3 | 96 | 224.1 | 197.6 | 35.6 |
| -3 | -19.4 | 29.4 | 20.1 | 97 | 227.5 | 200.7 | 36.1 |
| -2 | -18.9 | 30.3 | 20.9 | 98 | 230.8 | 203.9 | 36.7 |
| -1 | -18.3 | 31.3 | 21.7 | 99 | 234.2 | 207.2 | 37.2 |
| 0 | -17.8 | 32.2 | 22.5 | 100 | 237.7 | 210.4 | 37.8 |
| Temp. ( F) | Temp. ( C) | Pressure Liquid |
Vapor Pressure | Temp. ( F) | Temp. ( C) | Pressure Liquid |
Vapor Pressure
|
| 1 | -17.2 | 33.2 | 23.4 | 101 | 38.3 | 241.1 | 213.8 |
| 2 | -16.7 | 34.2 | 24.2 | 102 | 38.9 | 244.6 | 217.1 |
| 3 | -16.1 | 35.2 | 25.1 | 103 | 39.4 | 248.2 | 220.5 |
| 4 | -15.6 | 36.3 | 26.0 | 104 | 40.0 | 251.7 | 223.9 |
| 5 | -15.0 | 37.3 | 26.9 | 105 | 40.6 | 255.3 | 227.4 |
| 6 | -14.4 | 38.4 | 27.8 | 106 | 41.1 | 259.0 | 230.9 |
| 7 | -13.9 | 39.5 | 28.7 | 107 | 41.7 | 262.7 | 234.4 |
| 8 | -13.3 | 40.6 | 29.7 | 108 | 42.2 | 266.4 | 238.0 |
| 9 | -12.8 | 41.7 | 30.6 | 109 | 42.8 | 270.2 | 241.6 |
| 10 | -12.2 | 42.8 | 31.6 | 110 | 43.3 | 273.9 | 245.2 |
| 11 | -11.7 | 44.0 | 32.6 | 111 | 43.9 | 277.8 | 248.9 |
| 12 | -11.1 | 45.1 | 33.6 | 112 | 44.4 | 281.6 | 252.7 |
| 13 | -10.6 | 46.3 | 34.6 | 113 | 45.0 | 285.5 | 256.4 |
| 14 | -10.0 | 47.5 | 35.7 | 114 | 45.6 | 289.5 | 260.2 |
| 15 | -9.4 | 48.7 | 36.7 | 115 | 46.1 | 293.5 | 264.1 |
| 16 | -8.9 | 50.0 | 37.8 | 116 | 46.7 | 297.5 | 268.0 |
| 17 | -8.3 | 51.2 | 38.9 | 117 | 47.2 | 301.6 | 271.9 |
| 18 | -7.8 | 52.5 | 40.0 | 118 | 47.8 | 305.6 | 275.9 |
| 19 | -7.2 | 53.8 | 41.2 | 119 | 48.3 | 309.8 | 279.9 |
| 20 | -6.7 | 55.1 | 42.3 | 120 | 48.9 | 314.0 | 284.0 |
| 21 | -6.1 | 56.5 | 43.5 | 121 | 49.4 | 318.2 | 288.1 |
| 22 | -5.6 | 57.8 | 44.7 | 122 | 50.0 | 322.4 | 292.3 |
| 23 | -5.0 | 59.2 | 45.9 | 123 | 50.6 | 326.7 | 296.5 |
| 24 | -4.4 | 60.6 | 47.1 | 124 | 51.1 | 331.1 | 300.7 |
| 25 | -3.9 | 62.0 | 48.3 | 125 | 51.7 | 335.4 | 305.0 |
| 26 | -3.3 | 63.4 | 49.6 | 126 | 52.2 | 339.9 | 309.3 |
| 27 | -2.8 | 64.9 | 50.9 | 127 | 52.8 | 344.3 | 313.7 |
| 28 | -2.2 | 66.3 | 52.2 | 128 | 53.3 | 348.8 | 318.1 |
| 29 | -1.7 | 67.8 | 53.5 | 129 | 53.9 | 353.4 | 322.6 |
| 30 | -1.1 | 69.3 | 54.8 | 130 | 54.4 | 357.9 | 327.1 |
| 31 | -0.6 | 70.9 | 56.2 | 131 | 55.0 | 362.6 | 331.7 |
| 32 | 0.0 | 72.4 | 57.6 | 132 | 55.6 | 367.2 | 336.3 |
| 33 | 0.6 | 74.0 | 59.0 | 133 | 56.1 | 372.0 | 341.0 |
| 34 | 1.1 | 75.6 | 60.4 | 134 | 56.7 | 376.7 | 345.7 |
| 35 | 1.7 | 77.2 | 61.8 | 135 | 57.2 | 381.5 | 350.5 |
| 36 | 2.2 | 78.8 | 63.3 | 136 | 57.8 | 386.4 | 355.3 |
| 37 | 2.8 | 80.5 | 64.8 | 137 | 58.3 | 391.2 | 360.2 |
| 38 | 3.3 | 82.2 | 66.3 | 138 | 58.9 | 396.2 | 365.1 |
| 39 | 3.9 | 83.9 | 67.8 | 139 | 59.4 | 401.1 | 370.0 |
| 40 | 4.4 | 85.6 | 69.4 | 140 | 60.0 | 406.2 | 375.1 |
| 41 | 5.0 | 87.4 | 70.9 | 141 | 60.6 | 411.2 | 380.1 |
| 42 | 5.6 | 89.1 | 72.5 | 142 | 61.1 | 416.3 | 385.3 |
| 43 | 6.1 | 90.9 | 74.1 | 143 | 61.7 | 421.5 | 390.5 |
| 44 | 6.7 | 92.8 | 75.8 | 144 | 62.2 | 426.7 | 395.7 |
| 45 | 7.2 | 94.6 | 77.4 | 145 | 62.8 | 431.9 | 401.0 |
| 46 | 7.8 | 96.5 | 79.1 | 146 | 63.3 | 437.2 | 406.3 |
| 47 | 8.3 | 98.4 | 80.8 | 147 | 63.9 | 442.6 | 411.8 |
| 48 | 8.9 | 100.3 | 82.6 | 148 | 64.4 | 448.0 | 417.2 |
| 49 | 9.4 | 102.2 | 84.3 | 149 | 65.0 | 453.4 | 422.7 |
| 50 | 10.0 | 104.2 | 86.1 | 150 | 65.6 | 458.9 | 428.3 |
What is the pressure of r407?
| Property | Value |
|---|---|
| Saturated vapour density (25°C), kg/m3 | 43.8 |
| Critical temperature (°C) | 86.4 |
| Critical pressure, bar | 46.3 |
What is the temperature glide of R-407A?
| Temperature Glide °F (°C) | 8 (-4.4) |
What is R-407A refrigerant used for?
Freo 407A refrigerant is the best, most stable, and non-flammable option for low and medium-temperature refrigeration systems. It is a non-ozone-depleting, HFC refrigerant used as the replacement for R22 and offers low global warming potential and replacement of R-404A and R-507.
What is the difference between R-407A and R-407C?
R407C comes with the closest capacity with R22 for air conditioning and R407A provdies operations like R22 in supermarket refrigeration. R427A is a hybrid mixture that mirrors R22 operating pressure. Also used in a wider range of uses.
Is R-407C a high pressure refrigerant?
The material that comes with R407C is used for increasing required features having R22 providing heat capacity, R125 offering low flammability features and R134a minimizing pressure. The advantage of using R407C at high ambient conditions is that it works at low pressure.
Is 407A low temp?
Forane 407A is a low WGP refrigerant made to use as a replacement of R404A and R507A in medium and low-temperature refrigeration.
Is 407A compatible with 404A?
R-407A, R-448A, and R-449A are defined as the best options for the replacement of  R-404A in Low and Medium temperature applications. R-407A, R-448A, and R-449A are zeotropic mixtures of hydrofluorocarbon or HFC compounds and come with a different part of HFC and HFO compounds.
Is 407A flammable?
It is non-flammable at ambient temperatue and atmospheric pressure. However, it is combustible with a mixture of air under pressure and exposure to ignition sources.
What is the replacement gas for R-407A?
R407A is an HFC mixture used as an alternative to R22 and R404A for low and medium-temperature uses. Due to moderate global warming potential, it is the interim replacement of R404A and R507 for existing and new uses.
What is the chemical name for R-407A refrigerant?
R407A is a mixture of gases and a zeotropic blend of difluoromethane (HFC-32), pentafluoroethane (HFC-125) and 1,1,1,2-tetrafluoromethane (HFC-134a).
Can you mix 407A with R22?
R-407A/C/F/H, R-448A, R-449A, and R-427A are used in a system that uses R2. It must not be mixed to R22 or other refrigerant. For extended medium and low temperature uses cooling is needed.
What is the classification of R-407A?
It is rated as A1 by ASHRAE comes with zero ozone depletion potential. R407A is a close configuration with R22 featues and flow rates, making it best as a retrofit of R22 in food storage uses.
Is R-22 better than R-407A?
R22 has high irreversibility in low ambient temperature and R407A has low ambient temperature range from 30Â C to 36Â C.
What kind of oil does R-407A take?
Check system or component OEMs for recommendations on how to handle variations in operating pressure. Also with many HFC blends, R407A will need variation to polyol ester oil to ensure oil return and circulation in the system.
What is the difference between 404A and 407A?
Moving from R404A to R407a needed some efficiency. The R407a coil comes with low-pressure loss to the coil and needs less refrigerant per hour to fulfill the theoretically needed making it low cost for longer operation.
Properties of R-407A
| Formula |
R-32 (20%)
R-125 (40%) R-134a (40%) |
| Molecular weight (g/mol) | 90 |
| Boiling temperature °F (°C) |
-49 (-45)
|
| Critical temperature °F (°C) |
180 (82.3)
|
| Critical pressure, PSI, (Bar) |
655 (45.1)
|
| Gas heat capacity Btu/lb·°F, (kJ/(kg∙°C)) |
0.198 (0.829)
|
| Liquid heat capacity @ 1 atm, 30°C Btu/lb·°F (kJ/(kg∙°C)) |
0.363 (1.52)
|
| Temperature Glide °F (°C) |
8 (-4.4)
|
| Global Warming Potential | $2,100.00 |
| Ozone Depletion Potential | $0 |
| ASHRAE Safety Group | A1 |
Applications for R-407A
It is used in medium to low temperatue refrigeration uses.
R-407A Advantages
- It has low GWPÂ (~2100) than R-404 (~3900)
- Its operation likeR-22 and R-404
- its main advantage is that it has low GWP as compared to materials that used replacement. With that having less environmental effect, R407a operation is like R404 and R22. IF we move from R404 to R407 we will have efficiency. R4047 coin comes with low-pressure loss through coil and needs less refrigerant per hour to fulfill the theoretical demand making it low cost for longer operation. Contrary to R404a the R407 is not the main target of regulations. It is noted that as R407a GWP is about 2000 is the main improvement than R404, It is not considered low and it’s unclear to some extent whether R-407A will be regulated in the future.
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