5.6.3 Suction from freshwater tank
TM064348
Suction from freshwater tank
Pos. Description
1 Highest tapping point
2 Pipe hangers
3 Isolating valve
4 Flexible hoses
5 Drain to sewer
6
Inlet filter.
If the water may contain sand, gravel or other debris,
please install a filter on the inlet side to protect the pump
and installation.
7 Freshwater tank
8 Foot valve with strainer (recommended)
A Minimum 1° inclination
5.6.4 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.
TM064372
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)
Preconditions:
Maximum flow velocity
1 l/s (16 gpm)
Inside roughness of pipes 0.01 mm (0.0004 inch)
Size
Inside pipe diameter
[mm (inch)]
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)
12
English (GB)
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