Refrigerants P-H Diagram

Refrigerants Pressure Enthalpy Charts


The pressure-enthalpy diagram (log P/h diagram) is a very useful tool for refrigerant technicians, engineers and researchers. Since it’s not always possible to have all of these diagrams together, we decided to give you this complete pack.


This collection contains high-quality Pressure-Enthalpy (P-H) diagrams for various refrigerants.  These diagrams are essential tools for HVAC engineers and technicians working with refrigeration systems.  Click "View P-H Diagram" to open the diagram in a new tab, or "Download" to save it locally.

High Quality P-H Charts

Refrigerant Name P-H Diagram Download Preview
R22 View P-H Diagram Download R22 P-H Diagram
R23 View P-H Diagram Download R23 P-H Diagram
R32 View P-H Diagram Download R32 P-H Diagram
R113 View P-H Diagram Download R113 P-H Diagram
R114 View P-H Diagram Download R114 P-H Diagram
R125 View P-H Diagram Download R125 P-H Diagram
R134a View P-H Diagram Download R134a P-H Diagram
R152a View P-H Diagram Download R152a P-H Diagram
R227ea View P-H Diagram Download R227ea P-H Diagram
R236fa View P-H Diagram Download R236fa P-H Diagram
R290 View P-H Diagram Download R290 P-H Diagram
R404A View P-H Diagram Download R404A P-H Diagram
R407A View P-H Diagram Download R407A P-H Diagram
R407C View P-H Diagram Download R407C P-H Diagram
R407F View P-H Diagram Download R407F P-H Diagram
R410A View P-H Diagram Download R410A P-H Diagram
R417A View P-H Diagram Download R417A P-H Diagram
R422A View P-H Diagram Download R422A P-H Diagram
R422D View P-H Diagram Download R422D P-H Diagram
R427A View P-H Diagram Download R427A P-H Diagram
R448A View P-H Diagram Download R448A P-H Diagram
R449A View P-H Diagram Download R449A P-H Diagram
R449B View P-H Diagram Download R449B P-H Diagram
R450A View P-H Diagram Download R450A P-H Diagram
R452A View P-H Diagram Download R452A P-H Diagram
R452B View P-H Diagram Download R452B P-H Diagram
R452C View P-H Diagram Download R452C P-H Diagram
R454B View P-H Diagram Download R454B P-H Diagram
R454C View P-H Diagram Download R454C P-H Diagram
R502 View P-H Diagram Download R502 P-H Diagram
R503 View P-H Diagram Download R503 P-H Diagram
R507A View P-H Diagram Download R507A P-H Diagram
R513A View P-H Diagram Download R513A P-H Diagram
R600 View P-H Diagram Download R600 P-H Diagram
R600a View P-H Diagram Download R600a P-H Diagram
R717 View P-H Diagram Download R717 P-H Diagram
R718 View P-H Diagram Download R718 P-H Diagram
R744 View P-H Diagram Download R744 P-H Diagram
R1233zdE View P-H Diagram Download R1233zdE P-H Diagram
R1234yf View P-H Diagram Download R1234yf P-H Diagram
R1234zeE View P-H Diagram Download R1234zeE P-H Diagram
R1270 View P-H Diagram Download R1270 P-H Diagram
RE170 View P-H Diagram Download RE170 P-H Diagram