HVAC Toolkit

Pressure-Temperature Charts

Saturation P-T data for common refrigerants

Select Refrigerant

HFC / HCFC

R-22 R-32 R-125 R-134a R-143a R-404A Z R-407C Z R-410A R-507A

Low GWP (HFO)

R-449A Z R-454B Z Low GWP R-513A R-1234yf Low GWP R-1234ze(E) Low GWP

Natural

R-290 (Propane) Low GWP R-600a (Isobutane) Low GWP R-744 (CO2) Low GWP R-717 (NH3) Low GWP

Pressure Unit

psig kPa bar kgf/cm²

R-410A

Near-azeotropic
GWP: 2,088
ODP: 0

Quick P-T Lookup

kPa

* Results are interpolated from the P-T table data

Pressure Units: psig = Gauge pressure (relative to atmosphere) kPa / bar / kgf/cm² = Absolute pressure

°C °F kPa
-50 -58 76.0
-45 -49 111.0
-40 -40 152.0
-35 -31 199.0
-30 -22 253.0
-25 -13 315.0
-20 -4 386.0
-15 5 467.0
-10 14 558.0
-5 23 660.0
0 32 774.0
5 41 901.0
10 50 1,041.0
15 59 1,195.0
20 68 1,364.0
25 77 1,550.0
30 86 1,752.0
35 95 1,972.0
40 104 2,211.0
45 113 2,470.0
50 122 2,750.0
55 131 3,052.0
60 140 3,377.0
65 149 3,728.0
70 158 4,104.0
75 167 4,509.0
80 176 4,944.0