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FIRE-FIGHTING SET TO STANDARD EN 12845 – UNI 10779
HYDRAULIC DIAGRAM OF FEED ABOVE HEAD
27
26
24
25
22
20
16
8
5
4
3
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 filter
1*
Water reserve
2*
Foot valve
3*
4
Pump air and recirculating
Pipe for pump air and recirculating
5*
6*
Test valve / non return valve
Non return valve
7
8
Non return valve
Interception valve on delivery
9
10
Diaphragm expansion tank
Pressure gauge
11
Pilot pump pressure switch
12
Manual test circuit non return valve
13
28
DELIVERY MANIFOLD
17
17
11
14
15
14
13
12
11
10
9
7
6
3
1
1
ENGLISH
23
21
19
16
14
15
14
13
8
6
4
3
1
Pressure switch interception valve
14
Main pump manual test valve
15
Interception valve on delivery
16
Pressure switch for starting electropump no. 1
17
Pressure switch for starting electropump no. 2
18
Flow meter stub pipe
19*
20*
Priming line non return valve
Flow meter interception valve
21*
22*
Priming line interception valve
Flow meter
23*
24*
Tank discharge valve
25*
Tank float
26*
Overflow discharge
Priming tank
27*
Tank topping up
28*
36
27
27
26
24
25
22
20
11
5
28
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