Refrigerant Pressure Temperature Charts. 75 Refrigerants. Pressure Units psig/inHg, kPag, kPa, psig, psia, atm, inHg, MPa, barg, bara. Temp Units °F, °C, Kelvin. Temperature Tab. 1 °F Temperature increments. Bubble and Dew Pressures on same line. Pressure Tab. 1 psi Pressure increments. Bubble and Dew Temperatures on same line. Settings Tab. Select Pressure Units.