Refrigerant R1234yf vapor pressure

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A - Liquid

B - Gaseous

D - Refrigerant R1234yf vapor pressure

1 - Pressure acting on liquid in bar (absolute)

2 - Temperature in °C

NOTE:

The vapor pressure curves of both refrigerant R1234yf and R134a is similar across a large temperature range. The pressure difference between both refrigerants in the temperature range of 0 to 50 °C (32 to 122 °F) if for example only approximately 0.2 bar (3 psi) for this reason distinguishing the two refrigerants is not possible. Refer to REFRIGERANT VAPOR PRESSURE TABLE and A/C SYSTEM, GENERAL INFORMATION . Distinguishing is only possible by suitable sensors which can analyze the chemical characteristics of the refrigerant. Refer to REFRIGERANT R1234YF ANALYSIS .