DEW POINT DIAGRAM FOR COMPRESSED AIR
1
2
3
4
5
7
10
14
20
0
1
2
3
4
6
9
13
19
0,1
0,2
0,3
0,4
0,5
0,7
1,0
2
3
4
5
7
10
20
30
40
50
70
100
-10
-5
0¡
2¡
5
10
15
20
25
30
35
40
45
50
55
60
65
70
45
40
35
30
25
20
15
10
5
2
0
-5
-10
-15
-20
-25
-30
50
55
70
°
65
60
A reduction in pressure
at the sampling point
may result in a reduction
of the pressure dew point
value.
Pressure dew point °C
Gramme of water vapour per m
3
of moisture saturated compresse air
*
g
() m
3
Air pressure (bar)
Air pressure (bar)
* with reference to 0 bar, 20°C
The diagram provides information on the change in pressure dew point when there is a drop in
pressure. Example: a drop in pressure from 8 bar to 6 bar working positive pressure is shown.
In this case the pressure dew point drops from 10 °C to 5 °C.
compressed air
6
DEW POINT DIAGRAM FOR
COMPRESSED AIR