Hello, readers welcome to the new post. here we will discuss R134A Pressure-Temperature Chart. R134a refrigerant is ethane-based hydrofluorocarbon used in a different type of refrigeration instrument, HVAC, and in vehicles. it is used as a replacement for R12 refrigerant and is considered a safe option due to its non-toxic and non-flammable features. It does not get corroded. Here we will make its pressure temperature charge for further understanding. let’s get started with the R134A Pressure-Temperature Chart.
Table of Contents
R134A Pressure-Temperature Chart
| R-134a (psig) Pressure-Temperature Chart | |||||||
| Temp. (°F) | Pressure (psig) | Temp. (°F) | Pressure (psig) | Temp. (°F) | Pressure (psig) | Temp. (°F) | Pressure (psig) |
| -49 | 18.4 | 1 | 7.0 | 51 | 46.6 | 101 | 126.3 |
| -48 | 18.0 | 2 | 7.5 | 52 | 47.7 | 102 | 128.4 |
| -47 | 17.6 | 3 | 8.0 | 53 | 48.9 | 103 | 130.6 |
| -46 | 17.3 | 4 | 8.5 | 54 | 50.0 | 104 | 132.8 |
| -45 | 16.9 | 5 | 9.1 | 55 | 51.2 | 105 | 135.0 |
| -44 | 16.5 | 6 | 9.6 | 56 | 52.4 | 106 | 137.2 |
| -43 | 16.1 | 7 | 10.2 | 57 | 53.6 | 107 | 139.5 |
| -42 | 15.7 | 8 | 10.8 | 58 | 54.9 | 108 | 141.7 |
| -41 | 15.2 | 9 | 11.3 | 59 | 56.1 | 109 | 144.0 |
| -40 | 14.8 | 10 | 11.9 | 60 | 57.4 | 110 | 146.4 |
| -39 | 14.4 | 11 | 12.5 | 61 | 58.7 | 111 | 148.7 |
| -38 | 13.9 | 12 | 13.1 | 62 | 60.0 | 112 | 151.1 |
| -37 | 13.4 | 13 | 13.8 | 63 | 61.3 | 113 | 153.5 |
| -36 | 13.0 | 14 | 14.4 | 64 | 62.7 | 114 | 156.0 |
| -35 | 12.5 | 15 | 15.0 | 65 | 64.0 | 115 | 158.4 |
| -34 | 12.0 | 16 | 15.7 | 66 | 65.4 | 116 | 160.9 |
| -33 | 11.4 | 17 | 16.4 | 67 | 66.8 | 117 | 163.5 |
| -32 | 10.9 | 18 | 17.0 | 68 | 68.2 | 118 | 166.0 |
| -31 | 10.4 | 19 | 17.7 | 69 | 69.7 | 119 | 168.6 |
| -30 | 9.8 | 20 | 18.4 | 70 | 71.1 | 120 | 171.2 |
| -29 | 9.3 | 21 | 19.1 | 71 | 72.6 | 121 | 173.8 |
| -28 | 8.7 | 22 | 19.9 | 72 | 74.1 | 122 | 176.5 |
| -27 | 8.1 | 23 | 20.6 | 73 | 75.6 | 123 | 179.1 |
| -26 | 7.5 | 24 | 21.3 | 74 | 77.1 | 124 | 181.8 |
| -25 | 6.9 | 25 | 22.1 | 75 | 78.7 | 125 | 184.6 |
| -24 | 6.3 | 26 | 22.9 | 76 | 80.2 | 126 | 187.4 |
| -23 | 5.7 | 27 | 23.7 | 77 | 81.8 | 127 | 190.2 |
| -22 | 5.0 | 28 | 24.5 | 78 | 83.4 | 128 | 193.0 |
| -21 | 4.3 | 29 | 25.3 | 79 | 85.0 | 129 | 195.8 |
| -20 | 3.7 | 30 | 26.1 | 80 | 86.7 | 130 | 198.7 |
| -19 | 3.0 | 31 | 26.9 | 81 | 88.4 | 131 | 201.6 |
| -18 | 2.3 | 32 | 27.8 | 82 | 90.0 | 132 | 204.6 |
| -17 | 1.5 | 33 | 28.6 | 83 | 91.8 | 133 | 207.6 |
| -16 | 0.8 | 34 | 29.5 | 84 | 93.5 | 134 | 210.6 |
| -15 | 0.1 | 35 | 30.4 | 85 | 95.2 | 135 | 213.6 |
| -14 | 0.4 | 36 | 31.3 | 86 | 97.0 | 136 | 216.7 |
| -13 | 0.7 | 37 | 32.2 | 87 | 98.8 | 137 | 219.8 |
| -12 | 1.1 | 38 | 33.1 | 88 | 100.6 | 138 | 222.9 |
| -11 | 1.5 | 39 | 34.1 | 89 | 102.5 | 139 | 226.0 |
| -10 | 1.9 | 40 | 35.0 | 90 | 104.3 | 140 | 229.2 |
| -9 | 2.4 | 41 | 36.0 | 91 | 106.2 | 141 | 232.5 |
| -8 | 2.8 | 42 | 37.0 | 92 | 108.1 | 142 | 235.7 |
| -7 | 3.2 | 43 | 38.0 | 93 | 110.0 | 143 | 239.0 |
| -6 | 3.6 | 44 | 39.0 | 94 | 112.0 | 144 | 242.3 |
| -5 | 4.1 | 45 | 40.1 | 95 | 114.0 | 145 | 245.7 |
| -4 | 4.6 | 46 | 41.1 | 96 | 115.9 | 146 | 249.1 |
| -3 | 5.0 | 47 | 42.2 | 97 | 118.0 | 147 | 252.5 |
| -2 | 5.5 | 48 | 43.2 | 98 | 120.0 | 148 | 255.9 |
| -1 | 6.0 | 49 | 44.3 | 99 | 122.1 | 149 | 259.4 |
| 0 | 6.5 | 50 | 45.4 | 100 | 124.2 | 150 | 262.9 |
Properties of R134a Refrigerant
- The main features of R134a refrigerant are listed here
- its boiling point is-14.9°F(-26.1°C)
- its critical temperature is252°F(122°C)
- Auto ignition temperature value is 1,418°F(770°C)
- Ozone depletion level (ODL) is zero 0
- Global warming potential (GWP) value is1,430
Alternate for R12 Refrigerant
As R134a refrigerant comes with less volume as compare to refrigerant and charge required for accurate configuration when retrofitting a unit from R12 to R134a. The unit normally needs to modified for accommodation of the new refrigerant. Such as there is a need to reconfigure the condenser and evaporate in the unit and install small-size hoses.
What is the chemical name for R134a refrigerant?
1,1,1,2-Tetrafluoroethane is called norflurane (INN), R-134a, Freon 134a, Klea 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, HFA-134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12
Is R134a refrigerant CFC free?
R132a also called tetrafluoromethane, is a hydrofluorocarbon (HFC) refrigerant and is a replacement for R-12 CFC (chlorofluorocarbon) refrigerants for cooling applications.
What are the advantages of R134a refrigerant?
R134a is an HCFC refrigerant that is used in automotive air conditioning systems. R134a’s advantages are good thermal stability and non non-corrosiveness, with low toxicity.
How does R134a work?
The process started with a compressor where it compressed R134a from low-pressure gas to high-pressure hot vapor. Hot vapor flows through coils known as condensers that condense vapor to liquid by dissipating heat in hot gas.
Is R134a a gas or liquid?
The R134A is a nonflammable gas that is used as a refrigerant for maintaining a cool temperatue as part of a refrigeration system.
What is the color of R134a?
light blue
Is R134a flammable?
For normal conditions, R134A is a non-flammable gas tha shows an explosion range at a higher oxygen value than air. For high temperature and pressure, R134a has an explosion range in the air without any high oxygen percentage.
Why R134a is not used in AC?
R134a system works at high discharge side pressure that R12 can casues compressor seals to leak. Lower line R134a is normally not cooled like R12. With that, there are lubricant problems. Since AC compressor comes with movable components that need oil.
What is the difference between r134 and R134a?
The main difference between the two components is how atoms are connected to make a chemical compound. R134a is an isotope that is designed with the letter a. While for r134, the same type and amount of atoms are used that are connected differently (CF3-CH2F)
What is better than R134A?
R290 is used as a low global warming potential replacement for refrigerant R22, R-404, & R-134a for certain applications.
Is R134A a pure refrigerant?
The refrigerant can be either pure compounds or a mixture of two or more refrigerants. Such as pure refrigerants are R12, R22, and R134a.
How long does R134a last?
The shelf life of Freon 134a is about ten years for normal storage conditions. The cylinder must be stored in a clean dry location that is safe from sunlight. Storage must be less than 126 °F (52 °C). Cylinders must be protected from mechanical damage due to improper handling.
What oil is used in R134a?
Polyelkylene Glycol (PAG)
What is the critical temperature of R134a?
The auto-ignition temperatue is 1418 degrees Fahrenheit or 770 degrees Celsius. The critical temperature of R134a is 252 degrees Fahrenheit or 122 degrees Celsius
Read also:
- R-290 Propane Refrigerant PT Chart
- R-448A N40 Refrigerant PT Chart
Category:Electronic TutorialBy HenryApril 3, 2024Leave a comment
Author:Henry
https://www.theengineeringknowledge.com
I am a professional engineer and graduate from a reputed engineering university also have experience of working as an engineer in different famous industries. I am also a technical content writer my hobby is to explore new things and share with the world. Through this platform, I am also sharing my professional and technical knowledge to engineering students.Follow me on: Twitter and Facebook.
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