Install Instructions

5.3.3 Mains water pressure boosting
In some countries, boosting from the city water mains is
prohibited. Please follow local regulations regarding this
application.
49
1
37
2
5
10
6
2
3
8
TM075262
Pos. Description
1 Highest tapping point
2 Pipe hangers and supports
3 Isolating valves
4 Flexible hoses
5 Bypass valve
6
Optional pressure-reducing valve on the inlet side if the
pressure can exceed 8 bar (115 psi).
7
Optional pressure relief valve on the outlet side if the
installation cannot withstand the outlet pressure.
8
Drip tray. Install the pump on a small stand to prevent the
ventilation holes from being flooded.
9 Pressure gauge
10 Mains water pipe
5.3.4 Inlet pipe length
The overview below shows the different possible inlet pipe lengths,
depending on the vertical pipe length. The overview is only intended
as a guide.
H
L
Inlet pipe length
DN 32 DN 40
H
[m (ft)]
L
[m (ft)]
H
[m (ft)]
L
[m (ft)]
0 (0) 68 (223) 0 (0) 207 (679)
3 (10) 43 (141) 3 (10) 129 (423)
6 (20) 17 (56) 6 (20) 52 (171)
7 (23) 9 (30) 7 (23) 26 (85)
8 (26) 0 (0) 8 (26) 0 (0)
Pre-conditions:
Maximum flow velocity: 1 l/s (16 gpm).
Inside roughness of pipes: 0.01 mm (0.0004 in).
Size
Inside pipe diameter
[mm (in)]
Pressure loss
[mm (psi/ft)]
DN 32 28 (1.1) 0.117 (5/100)
DN 40 35.2 (1.4) 0.0387 (1.6/100)
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English (GB)