Latent heat
hfg = hg - hf
Cooling effect uses enthalpy difference
Refrigerant property lookup
R22 Refrigerant Properties
Look up R22 saturation pressure, enthalpy, latent heat, and vapor specific volume by temperature for quick refrigeration, service, and thermodynamic reference.
Instant saturation lookup
Select saturation temperature
Results update automatically using interpolated table values for R22 saturation properties.
Interpolated result
Reference table
R22 saturation table
| Temperature (°C) | Pressure (kPa) | hf (kJ/kg) | hg (kJ/kg) | hfg (kJ/kg) | vg (m3/kg) |
|---|---|---|---|---|---|
| -10 | 200 | 50 | 230 | 180 | 0.056 |
| 0 | 360 | 60 | 245 | 185 | 0.052 |
| 10 | 600 | 70 | 260 | 190 | 0.049 |
| 20 | 900 | 80 | 276 | 196 | 0.046 |
| 30 | 1300 | 90 | 293 | 203 | 0.043 |
| 40 | 1800 | 102 | 311 | 209 | 0.041 |
| 50 | 2400 | 115 | 330 | 215 | 0.038 |
| 60 | 3100 | 129 | 350 | 221 | 0.036 |
| 70 | 4000 | 144 | 372 | 228 | 0.034 |
| 80 | 5000 | 160 | 395 | 235 | 0.032 |
Formulas
Refrigerant property relationships
Saturation state
Tsat corresponds to Psat
At saturation, liquid and vapor can coexist
R22 saturation properties are used for legacy HVAC service checks, refrigeration cycle estimates, pressure-temperature comparisons, and troubleshooting. Always verify final service decisions against system labels, manufacturer data, regulations, and calibrated instruments.
Reference
What the R22 values mean
Saturation pressure
The pressure at which R22 boils or condenses at the selected saturation temperature.
Liquid enthalpy
hf is the energy content of saturated liquid refrigerant at the saturation point.
Vapor enthalpy
hg is the energy content of saturated vapor refrigerant at the saturation point.
Specific volume
vg helps estimate vapor volume flow and compressor displacement requirements.
FAQ
R22 refrigerant questions
What is R22 refrigerant?
R22, also known as chlorodifluoromethane, is an HCFC refrigerant historically used in air conditioning and refrigeration systems.
Why is R22 mostly used for legacy systems?
R22 has been phased out or restricted in many markets because of ozone depletion potential, so it is mainly encountered in existing equipment and service contexts.
Can this table replace manufacturer refrigerant data?
No. Use this page for quick reference and early calculations. Final HVAC work should use manufacturer data, standards, regulations, and calibrated gauges.
Related