What is the evaporation temperature of R-134a at 0 psig?

To determine the evaporation temperature of R-134a at 0 psig, it is important to refer to the pressure-temperature relationship for refrigerants. R-134a has a specific evaporation or boiling point that corresponds to any given pressure.

At 0 psig, which is equivalent to approximately 14.7 psia (since atmospheric pressure is about 14.7 psi), R-134a exhibits a vaporization point of around -15° F. This means that at this pressure, R-134a would not be in a liquid state but rather a gaseous state at temperatures lower than -15° F, making it suitable for refrigeration applications at low temperatures.

Understanding these characteristics and the pressure-temperature chart for R-134a is vital for anyone working with refrigeration systems, as it affects system performance, efficiency, and safety. Other temperature options do not align with the pressure of 0 psig in relation to R-134a, highlighting the importance of familiarizing oneself with to correct data for effective operation and repair of refrigeration systems.