Refrigerant R134A Vapor Pressure Table
The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pressure acting on the column of liquid in a vessel if the temperature of the vessel is known.
Because each refrigerant has its own characteristic vapor pressure table, refrigerant can be identified by measuring the pressure and temperature.
NOTE:
At absolute pressure, 0 bar corresponds to absolute vacuum. Normal ambient pressure (positive pressure) corresponds to 1 bar absolute pressure. 0 pressure corresponds to an absolute pressure of one bar on most pressure gauges (indicated by -1 bar below 0).
| Temperature in °C | Pressure in Bar (Positive Pressure) of R134a |
|---|---|
| -45 | -0.61 |
| -40 | -0.49 |
| -35 | -0.34 |
| -30 | -0.16 |
| -25 | 0.06 |
| -20 | 0.32 |
| -15 | 0.63 |
| -10 | 1.00 |
| -5 | 1.43 |
| 0 | 1.92 |
| 5 | 2.49 |
| 10 | 3.13 |
| 15 | 3.90 |
| 20 | 4.70 |
| 25 | 5.63 |
| 30 | 6, 70 |
| 35 | 7.83 |
| 40 | 9.10 |
| 45 | 10.54 |
| 50 | 12.11 |
| 55 | 13.83 |
| 60 | 15.72 |
| 65 | 17.79 |
| 70 | 20.05 |
| 75 | 22.52 |
| 80 | 25.21 |
| 85 | 28.14 |
| 90 | 31.34 |