The YELLOW JACKET Digital Refrigerant Pressure Temperature chart provides accurate pressure and temperature references for 61 refrigerants. Displays psi, bar, and MPa pressure units (5.1 to 462.5 psi, ...

At lower temperatures, R-134a has a slightly lower pressure than R-12, and at higher temperatures, R-134a has a bit of a higher pressure when compared to R-12. Otherwise, both refrigerants’ ...