English (GB)
33
11.3 Water level requirements
The minimum requirement for free space and a
guideline for the minimum water level are shown in
the tables below. The figures show installation
examples.
The site conditions influence the M.W.L.
•
Perfect site conditions might require a lower
M.W.L. This has to be verified by CFD simulation.
•
Unfavourable site conditions might require a
higher M.W.L.
11.4 Water level requirements, KPL
Fig. 33
Installation example of KPL
Requirements for installation
* M.W.L. = minimum water level, see also the note
in section
All values for C, S and M.W.L. in the table
below are minimum values. Depending on
the specific pump type and operating
range, the specific level for "S" and
"M.W.L" must be selected using the NPSH
curve for the specific pump and the max.
and min. operating range for the
application. The M.W.L. is a guide only.
The specific M.W.L. must be calculated
based on minimum and maximum
operating range for the specific pump.
TM
07
40
5
4
22
19
∅
D
[mm]
C
[mm]
S
[mm]
M.W.L.*
[mm]
500
250
750-1200
1000-1450
600
300
1100-1400
1400-1700
650
325
1200-1600
1525-1925
700
350
1300-1750
1650-2100
800
400
1400-2100
1800-2500
900
450
1500-2550
1950-3000
1000
500
1650-2800
2150-3300
1200
600
2000-3400
2600-4000
1400
700
2300-3800
3000-4500
1500
750
2450-4050
3200-4800
1600
800
3000-4200
3800-5000
1800
900
4000-4600
4900-5500
C
S
M.W.L.
D