Installation Examples - Grundfos SCALA Installation And Operating Instructions Manual

3.5 Installation examples

Fittings, hoses and valves are not supplied with the
pump.
3.5.1 Mains water pressure boosting
2
7
10
5
3
Fig. 5 Mains water pressure boosting
Pos. Description
1 Highest tapping point
2 Pipe hangers and supports
3 Isolating valves
4 Flexible hoses
5 Bypass valve
Optional pressure-reducing valve on the
6 inlet side if the inlet pressure can exceed
10 bar (145 psi)
Optional pressure-relief valve on the outlet
7 side if the installation cannot stand up to a
pressure of 6 bar (85 psi)
Drip tray. Install the pump on a small stand
8 to avoid the ventilation holes from being
flooded.
9 Pressure gauge
10 Mains water pipe
6
1
3 9 4
6 2
8
3.5.2 Suction from a well
1
3
4
Fig. 6 Suction from a well
Pos. Description
1 Highest tapping point
2 Isolating valve
Inlet filter.
If the water can contain sand, gravel or
3 other debris, please install a filter on the
inlet side to protect the pump and
installation.
4 Foot valve with strainer
H1 Maximum suction lift is 8 m (29 ft)
Inlet pipe must be submersed at least 0.5
H2
m (1.64 ft)
2