Volkswagen Workshop Service and Repair Manuals

Refrigerant: Pressure, Vacuum and Temperature Specifications

Temperature/Pressure Relationship

R-134a in an enclosed container will have a specific temperature/pressure relationship.

Temperature in  °C (°F) 

Pressure in bar (psi)

-30 (-22)                   

0.0

(0.0)

-20 (-4)                     

0.3

(4.4)

-10 (14)                    

1.0

(14.5)

0

(32)                      

1.9

(27.5)

10

(50)                     

3.1

(45.0)

20

(68)                     

4.7

(68.2)

30

(86)                      

6.7

(97.2)

40

(104)                     

9.1

(132.0)

50

(122)                    

12.2 (177.0)

60

(140)                    

15.8 (229.2)

70

(158)                    

20.2 (293.0)