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4.2 Design of pump and motor
• Multistage vertical pump not self-priming, with ports in line on the same
axis in bottom part.
• Asynchronous motor with standardized flange and shaft end for vertical
operation fitted with its converter.
• Motor-pump linked by a coupling with safety guards.
• Shaft sealing by standardized mechanical seal.
• Hydraulic connection:
Round flanges: pump delivered with rings and bolts without counter
flanges (accessories as option).
4.3 Accessories as option
See catalogue or data sheet.
5. Assembly
CAUTION !
Installation and service by qualified personnel only.
5.1 Installation
Two standard types :
Fig. 1: pump in suction.
Fig. 2: pump under pressure on storage tank (item9) or town water sup-
ply (item10).
– Install the pump in a place easy to reach, protected against extrema
conditions (rain and sun in excess, frost) and as close as possible
from the drawing point.
– For heavy pumps provide a point of attachment (lifting hook) in the
pump axis (item12) to facilitate removal.
– Install the pump on a concrete block (at least 10 cm high) (item13)
and fix with anchor bolts (installation plan see fig.3).
– Foresee an insulating material under the concrete block (cork or rein-
forced rubber) to avoid any noise and vibration transmission into the
installation.
– Before final tightening of anchor bolts, ensure that the pump axis is
vertical : use shims if necessary.
Bear in mind that the altitude of the installation place
CAUTION !
and the water temperature may reduce the suction
possibilities of the pump.
A A l l t t i i t t u u d d e e
Loss of head
0 m
0 mCL
500 m
0,60 mCL
1000 m
1,15 mCL
Possible damage of the pump! (cavitation).
CAUTION !
Above 80° C, plan to install the pump under pres-
sure.
5.2 Hydraulic connections
Possible damage of the pump! The installation
CAUTION !
has to bear the pressure reached when the pump
runs at maximum frequency and zero flow rate.
• Pump with round flange pump casing : with weld-on or screw-on
tube in the counterflanges (counterflanges available as accessories).
• The diameter of the pipe must never be smaller than the one of the
counter flange.
16
T T e e m m p p e e r r a a t t u u r r e e
Loss of head
20 °C
0,20 mCL
30 °C
0,40 mCL
40 °C
0,70 mCL
50 °C
1,20 mCL
60 °C
1,90 mCL
70 °C
3,10 mCL
80 °C
4,70 mCL
90 °C
7,10 mCL
100 °C
10,30 mCL
110 °C
14,70 mCL
120 °C
20,50 mCL
• The direction of the fluid flow is indicated on the identification label of
the pump.
losses of head (bends, valves, tapers). Connections have to be
• Limit the length of the suction pipe and avoid all features that cause
correctly sealed : no air entrance is allowed on the suction
pipe which is showing a mounting declivity of at least 2% (fig.
1).
• Use supports or collars (fig.1 & 2 - item 7) so that the pump does not
bear the weight of the pipes.
CAUTION !
When the pump is under pressure, it is recommen-
ded to connect the non-return valve to the pump discharge to protect
it against hammer blow effects.
NOTE!
To pump water with a large content of air or hot
water, we recommend to install the by-pass kit (fig.1-item BP).
5.3 Electrical connections
The electric connections and inspections have to be carried out by a
qualified electrician and have to comply with the relevant local standards.
• The electric characteristics (frequency, voltage, nominal current) of
the motor-converter are mentioned on the name plate. Check that the
motor-converter complies with the mains supply used.
• The electric protection of the motors is integrated into the converter.
The parameters take into account the characteristics of the pump
and must ensure its protection and the one of the motor.
• In case of impedance between earth and neutral point, install a pro-
tection before motor-converter.
• Provide a fuse disconnecting switch (type GF) to protect the mains
installation (fig.1 & 2-item11).
• If you have to install a differential circuit-breaker for users protection,
it must have a delay effect. Adjust it according to the current mentio-
ned on the converter label.
• Use power cables conforming with standards
DO NOT FORGET TO CONNECT TO EARTH.
• The electric connection of the converter (fig.6) has to comply with the
schemes of the following table :
CAUTION !
A connection error would damage the converter.
The power cable must never touch the pipe or the pump ;
make sure that it is sheltered from any humidity.
• You can change the orientation of the motor-converter by quarter turn
when removing the fixing screws of the motor and reorientating the
motor to the wished position.
Place the screws back.
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