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:
Primer Metal
One-Part Anti-Corrosion Wash Primer
Definition:
One-Part Anti-Corrosion Wash Primer -ALN 002 003 10-
Edition 06/2011
Product Description
On ...
Beru Wheel Electronics Tire Pressure Monitoring Sensor, Removing and
Installing
Overview, Beru System
WARNING
If tire sealant was used, then the wheel electronics
on that particular wheel must be replaced.
WA ...
Introduction
This chapter contains information on the following subjects:
→ Technical requirements
→ Fitting the removable ball coupling
→ Removing the ball coupling
→ Hitching and connecting the trailer
→ Loading the trailer
→ Towing a trailer
...
© 2016-2025 Copyright www.vwpolo.net
