VW Touran manuals

Volkswagen Touran Service Manual: Refrigerant R134a Vapor Pressure Table

The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pressure acting on the column of liquid in a vessel if the temperature of the vessel is known.
Because each refrigerant has its own characteristic vapor pressure table, refrigerant can be identified by measuring the pressure and temperature.
  Note
At absolute pressure, 0 bar/psi corresponds to absolute vacuum. Normal ambient pressure (positive pressure) corresponds to 1 bar (14.5 psi) absolute pressure. 0 pressure corresponds to an absolute pressure of 1 bar (14.5 psi) on most pressure gauges (indicated by -1 bar (-14.5 psi) below 0 bar/psi).
   
Temperature in C (F) Pressure in bar (psi) of R134a
-45 (-49) -0.61 (-8.84)
-40 (-40) -0.49 (-7.10)
-35 (-31) -0.34 (-4.93)
-30 (-22) -0.16 (-2.32)
-25 (-13) 0.06 (0.87)
-20 (-4) 0.32 (4.64)
-15 (5) 0.63 (9.13)
-10 (14) 1.00 (14.5)
-5 (23) 1.43 (20.74)
0 (32) 1.92 (27.84)
5 (41) 2.49 (36.11)
10 (50) 3.13 (45.39)
15 (59) 3.90 (56.56)
20 (68) 4.70 (68.16)
25 (77) 5.63 (81.65)
30 (86) 6.70 (97.17)
35 (95) 7.83 (113.56)
40 (104) 9.10 (131.98)
45 (113) 10.54 (152.86)
50 (122) 12.11 (175.64)
55 (131) 13.83 (200.58)
60 (140) 15.72 (227.99)
65 (149) 17.79 (258.02)
70 (158) 20.05 (290.80)
75 (167) 22.52 (326.62)
80 (176) 25.21 (365.64)
85 (185) 28.14 (408.13)
90 (194) 31.34 (454.54)
     
Pressure and Boiling Point
The boiling point given in tables for a liquid is always referenced to an atmospheric pressure of 1 bar (14.5 psi). If the pressure acting on a fluid changes, its boi ...

Refrigerant R134a
Refrigerant R134a Physical Data Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance whic ...

Other materials:

Volkswagen Touran Service Manual. Diagonal Washouts
Diagonal wear spots on tires Diagonal wear spots run at an angle of approximately 45 with respect to the plane of circumference. They usually occur once, but may also occur several times along the tire circumference. ...

Volkswagen Touran Service Manual. Battery Charger -VAS5900- Device Description
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter "Warnings and Safety Precautions".   WARNING ...

© 2016-2022 Copyright www.vwtouran.net | 0.0778