R134a Static Pressure Chart. 201 rows R-134a Refrigerant Pressure Temperature Chart. Static pressure chart for car AC.
It has been in use since the early 1990s and now in 2019 we are beginning to see its popularity wane with the rise of the new HFO refrigerant known as R-1234yf. R134a Pressure Gauge Chart This chart details how ambient temperature correlates with the system refrigerant charge pressure and how it affects high and low side psi readings. It can be used for recharging refrigerant or to diagnose an ac system based on pressure readings from your gauges.
R134a R1234yf R134a R1234yf 65 25-35 22-32 135-155 128-142 70 30-40 27-38 145-160 140-155 75 35-45 33-43 150-170 148-166 80 40-45 40-45 175-210 175-210 85 45-55 46-56 225-250 227-253 90 45-55 46-56 250-270 255-275 95 50-55 53-57 275-300 280-310 100 50-55 53-57 315-325 325-342 105.
This pressure chart for R 134a details the relationship between pressure and temperature. Systems some other R-134a applications and it is a component in some HFC blends to help lower the overall GWP. The actual static pressure will depend on the ambient temperature. Bear in mind that an average AC system loses up to 50 grams2 oz.