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FIRE-FIGHTING SET TO STANDARD EN 12845 – UNI 10779
HYDRAULIC DIAGRAM OF FEED BELOW HEAD
6
2
2
* Components and materials NOT included in the supply of the fire-fighting pumps set
Supply pump no. 1
P1
Supply pump no. 2
P2
Pilot Pump
P3
Suction interception valve
1*
Suction filter
2*
3
Pump air and recirculating
Test valve / non return valve
4*
5
Non return valve
Water reserve
6*
7
Non return valve
Interception valve on delivery
8
9*
Pipe for pump air and recirculating
Diaphragm expansion tank
10
11
Pilot pump pressure switch
Pressure gauge
12
16
9
7
2
3
ENGLISH
DELIVERY MANIFOLD
17
17
12
13
15
13
14
11
12
10
8
5
4
3
2
2
1
1
Pressure switch interception valve
13
Manual test circuit non return valve
14
Main pump manual test valve
15
Interception valve on delivery
16
Pressure switch for starting electropump no. 1
17
18
Pressure switch for starting electropump no. 2
Flow meter stub pipe
19*
20*
Flow meter interception valve
Flow meter
21*
35
21
20
19
FLOW METER STUB PIPE
16
18
18
13
15
13
14
7
4
2
1
12
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