6 Commissioning/Start-up/Shutdown
32 of 44
UPAchrom
D
T
H
e
H
h
H
t
H
g
e
o
Fig. 9:
Minimum submergence for vertical installation
T
Well depth
H
h
Static water level
D
Well diameter
H
t
Dynamic water level
H
e
Installation depth of the pump set
H
geo
Height of control box above the
static water level in the well
Horizontal
installation
Measurement for horizontal installation:
Upper pump edge of suction strainer to lowest (dynamic) water level.
0
,5
m
Fig. 10:
Minimum submergence for horizontal installation
6.2.6.2 Sand content
Make sure the maximum sand content of 50 g/m³ is not exceeded.
6.2.6.3 Temperature of the fluid handled
Make sure the maximum water temperature T = + 30 °C is not exceeded.
NOTE
The minimum flow velocity in the motor area has to equal 0.08 m/s. For inner well
diameters >150 mm always install a cooling jacket.
