Home Refrigerants Refrigerant PT charts Pressure-temperature charts and master profiles for 62 refrigerants, from today's A2L replacements to the CFCs still found in old equipment. The table shows each refrigerant's saturation pressure at a typical 40°F evaporator (vapor, dew point) and a 100°F condenser (liquid, bubble point), in psig at sea level.
Each chart runs in 1°F steps and has a gauge lookup, a CSV download and a printable layout.
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Air conditioning and heat pumps Refrigerant Class GWP 40°F psig 100°F psig Oil R-22 A1 1,810 68.6 195.9 Mineral oil R-32 A2L 675 121.0 325.7 POE R-407C A1 1,774 63.2 225.5 POE R-410A A1 2,088 118.4 318.5 POE R-452B A2L 698 109.4 306.1 POE R-454B A2L 466 107.5 303.3 POE
Commercial refrigeration Refrigerant Class GWP 40°F psig 100°F psig Oil R-125 A1 3,500 97.0 261.4 POE or PVE R-143a A2L 4,470 88.3 237.2 POE or PVE R-404A A1 3,922 85.4 236.8 POE R-407A A1 2,107 69.4 237.7 POE R-407F A1 1,825 73.4 249.3 POE R-407H A1 1,495 66.4 235.2 POE R-448A A1 1,387 71.2 244.2 POE R-449A A1 1,397 71.2 240.7 POE R-452A A1 2,140 78.5 246.9 POE R-454A A2L 239 74.3 254.2 POE R-454C A2L 148 59.6 219.6 POE R-455A A2L 148 64.7 256.7 POE R-507A A1 3,985 89.2 242.3 POE
Automotive, domestic and medium-temperature Refrigerant Class GWP 40°F psig 100°F psig Oil R-134a A1 1,430 35.1 124.2 PAG R-152a A2 124 30.1 109.5 POE or PVE R-401A A1 1,182 35.9 143.0 Mineral oil or alkylbenzene R-401B A1 1,288 39.8 152.0 Mineral oil, alkylbenzene R-409A A1 1,585 34.0 146.8 Mineral oil or alkylbenzene R-416A A1 1,084 27.4 110.8 No manufacturer guidance found; follow the compressor maker R-437A A1 1,805 41.2 148.9 Mineral oil, AB or POE R-450A A1 604 28.9 109.3 POE R-513A A1 631 39.8 131.3 POE R-1234yf A2L – 38.4 124.9 PAG made for R-1234yf, or POE
Natural refrigerants Refrigerant Class GWP 40°F psig 100°F psig Oil R-170 ethane A3 – 370.2 – PAO, mineral oil or POE R-290 propane A3 – 63.9 173.9 POE, PAG or PAO R-600a isobutane A3 – 11.9 58.0 Mineral oil R-717 ammonia B2L – 58.6 197.2 Mineral oil or PAO R-744 CO2 A1 1 552.9 – POE or PAG R-1270 propylene A3 – 81.8 212.6 PAO, PAG or POE
R-22 service blends Refrigerant Class GWP 40°F psig 100°F psig Oil R-417A A1 2,346 54.0 184.6 POE or PVE R-421A A1 2,631 58.1 197.4 MO, AB or POE R-422A MO79 A1 3,143 84.1 242.4 Mineral oil, AB or POE R-422B NU-22B A1 2,526 59.4 198.9 Mineral oil, AB or POE R-422D MO29 A1 2,729 66.5 213.2 Mineral oil, AB or POE R-424A RS-44 A1 2,440 55.1 189.2 Mineral oil, AB or POE R-427A A1 2,138 61.2 216.2 POE R-434A RS-45 A1 3,245 77.3 228.4 Mineral oil, AB or POE R-438A MO99 A1 2,265 60.8 211.3 Mineral oil, AB or POE R-453A RS-70 A1 1,765 57.9 212.7 Mineral oil, AB or POE R-458A TdX 20 A1 1,650 50.1 193.8 Mineral oil, AB or POE
Legacy CFCs and R-502 Refrigerant Class GWP 40°F psig 100°F psig Oil R-12 A1 10,900 36.9 116.9 Mineral oil R-408A A1 3,152 77.9 217.3 Alkylbenzene R-500 A1 8,077 46.9 142.7 Mineral oil or alkylbenzene R-502 A1 4,657 77.5 211.8 Mineral oil or alkylbenzene
Chiller refrigerants Refrigerant Class GWP 40°F psig 100°F psig Oil R-11 A1 4,750 15.6″ Hg 8.9 Mineral oil or alkylbenzene R-113 A1 6,130 24.4″ Hg 8.6″ Hg Mineral oil or alkylbenzene R-123 B1 77 18.2″ Hg 6.1 Mineral oil or alkylbenzene R-245fa B1 1,030 10.7″ Hg 19.1 POE R-514A B1 – 19.1″ Hg 5.1 POE R-515B A1 292 22.2 89.9 POE R-1233zd(E) A1 – 12.6″ Hg 14.5 Per chiller OEM R-1234ze(E) A2L – 22.2 89.9 POE R-1336mzz(Z) A1 – 20.9″ Hg 2.5 POE
Very low temperature Refrigerant Class GWP 40°F psig 100°F psig Oil R-14 tetrafluoromethane A1 7,390 – – POE R-23 A1 14,800 392.7 – POE R-508B A1 13,396 448.7 – POE
GWP is the 100-year value from the IPCC Fourth Assessment Report (AR4), the basis EPA uses under the AIM Act. A dash means the refrigerant is above its critical temperature or outside its chart range at that point. Hg values are inches of mercury vacuum. See the GWP chart and how the pressures are computed .