Functional Diagram - Grundfos Hydro EN Installation And Operating Instructions Manual

7.

Functional diagram

PSS
Main electric
pump
Supply limit
Example of two pumps set.
Symbol Description
Check valve
Ball Valve
Butterfly valve
Concentric taper on discharge side
Eccentric taper on suction side
PSS
Compensation joint
Flow meter
Pressure switch
PSS
Pressure gauge
PSS
Membrane pressure tank
Control panel
Drain plug
Limite di fornitura
Power and signal electric cabling
Piping for main and auxiliary flow
8
(Accessories on request)
9
10
PSS
6
4
PSL
1
3
PSS
PSS
Limite di fornitura
Priming tanks
8
5
2
Jockey
11
pump
Ref. Connection
Suction connection for the main (or standby) electric
1
pump
Suction connection for the main (or standby) diesel
2
PSS
pump
3 Suction connection for the jockey pump
PSS
Bleed line connection for main (or standby) electric
4
pump
Bleed line connection for main (or standby) air cooled
5
diesel pump
6 Priming connection for main (or standby) electric pump
7 Priming connection for main (or standby) diesel pump
PSS
8 Priming connection for jockey pump
9 Discharge connection to the system
Connection for sprinkler protection system of the pumps
10
room
11 Test loop drain connection
12 Fuel tank vent
Discharge connection for cooling system of diesel engines
13
liquid-cooled by heat exchanger water/water (if present)
14 Diesel engine exhaust fumes connection
9
14
PSS PSS
7
PSL
Standby diesel
13
pump
PSS
PSS
PSS
12