Refrigerant PT Charts
Interactive pressure-temperature charts for the refrigerants you encounter in the field. Tap the curve, edit a value, get the answer.
R-410A
Near-azeotropic blend (R-32 / R-125). Dominant residential AC and heat pump refrigerant.
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R-22
HCFC, phased out under the Montreal Protocol. Still encountered on legacy systems.
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R-32
Pure HFC, A2L mildly flammable. Common in modern heat pumps.
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R-454B
R-32 / R-1234yf blend, A2L. Lower-GWP successor to R-410A.
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