WÄRTSILÄ Vasa R22, Instruction Manual

Page: 252 / 297

21. Starting Air System
21.1 General description
The engine is started with compressed air of maximum 30 bar.
The minimum pressure required is about 11 bar depending on the
cylinder number and the installation. A pressure gauge (15)
indicates the pressure before the main starting valve.
The inlet air pipe from the starting air receiver includes a non-
return valve (21) and a filter (20). A blow-off valve (14) is located
before the main starting valve. The main starting valve may be
operated either with the lever (1) at manual starting or with a
solenoid valve (8) at remote or automatic starting of the engine.
Starting air system
8
6
4
5
10
11
12
1
2
3
16
23
14
15
17
18
19
24
22
20
21
1. Lever
2. Lever
3. Pin
4. Spring
5. Air space
6. Servo piston
8. Solenoid valve
10. Plug
11. Sealing piston
12. Air space
14. Blow-off valve
15. Pressure gauge
16. Flame arrester
17. Guiding piston
18. Spring
19. Cam
20. Filter
21. Non-return valve
22. Control piston
23. Start blocking valve
24. Nut
Fig 21-1
2221519428
22-9601 Starting Air System 21
VASA 22 21-1