Comprag ADX-F-PDP Serie Bedienungsanleitung Seite 10

2.3 Functionality.
Fig.
2.3 Flow chart of air dryer
1. Bypass valve.
2. Right tower.
3. Check valve.
4. Left tower.
5. Solenoid valve (PV)
6. Silencer
7. Injector
8. Cyclone Separator
9. Air filter - Coarse filtration
10. Solenoid valve PV2/PV4
11. Controller
12. Dew-Point sensor (in electro box)
Air for drying
Dry compressed air
PV4
PV2
15 sec
ADX20 - ADX90
30 sec
ADX125 - ADX250
Delay
Cyclogram for the opening and closing of electromagnetic pneumatic valves (PV) 5.
PV4 – solenoid valve of left tower
PV2 – solenoid valve of right tower
Both solenoid valves, PV2 and PV4, are closed during start-up.
Phase A. Solenoid valve PV2 is actuated and the pressure falls in tower 2 to atmospheric
pressure. Bypass valve 1 switches to closing tower 2 (as there is no pressure in this tower).
The inflow of compressed air is fed into tower 4, where adsorbent material adsorbs the mois-
ture to the required set amount. Some of the dry air passes through the injector 7 from tower
10
270 sec 30 sec
240 sec 60 sec
A B
9
2
6
1
270 sec
240 sec
E
3
7
10
270 sec 30 sec
240 sec 60 sec
C D
Version 1.0
5
11
12
4
8