Volkswagen Polo Service & Repair 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) |
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 ...
Other materials:
Windscreen wiper lever
Fig. 72 Operating the front windscreen
wiper
Fig. 73 Operating the rear window wiper
First read and observe the introductory information
and safety warnings
Move the windscreen wiper lever to the desired position
:
⓪
Switches ...
Two-Part HS Brilliant Plus Clear Coat
Definition:
Two-Part HS Brilliant Plus Clear Coat -LZK 769 K05 A5-
Edition 02/2012
Product Description
Two-part HS brilliant clear coat is a high-gloss, VOC
compliant high so ...
Vehicle-specific weight ratings
First read and observe the introductory information
and safety warnings
All data in the official vehicle documents take precedence over these data. All
data in this manual apply to the basic model. The vehicle data sticker in the service
schedule and the official vehicle documents show which ...
© 2016-2025 Copyright www.vwpolo.net
