2.4 Protection of the installation
In the case where valves are placed on the suction and-
discharge pipes, make sure that they cannot be closed-
without prior stopping of the pump.
The pump must be protected against excess pressure. It can
be delivered with a pressure switch to ensure this function.
Also make sure that the pump and the installation are
protected against any risk of deterioration through the
passage of foreign bodies.
2.5 Unit assembly
The following instructions apply to pumps delivered with
a bare shaft or for MOUVEX motor-driven pump units (if
the latter have no specific instruction notice).
2.5.1 Fixing to the ground of non-mobile units
The base plate is equipped with 3 fixed legs (height
92 mm) + 1 screw jack leg, all fixed under the base plate.
These legs are made of an identical substance to that of
the base plate.
2.5.2 Installation of units
The base below the unit is fundamental to ensuring cor-
rect operation and long service life.
The unit’s base must be flat, level and sufficiently resis-
tant to absorb the stresses caused by the motor-driven
pump unit without deformation (if it is made of concrete,
it must comply with the BAEL 91 standard).
If the unit is fastened using securing lugs or bolts, it must
be carefully wedged to avoid deforming the frame while
the bolts are tightened. A deformed frame would apply
damaging stresses on the pump and the drive mecha-
nism and misalign the coupling, causing vibrations,
noise and premature wear. Ensure that the frame is well
above the floor, except from the support plates.
If the unit is to be used in a food environment, support
plates that allow the unit to be lifted for easier cleaning
are recommended.
Allow, if possible, a clear space of approximately 50 cm
on each side of the motor-driven pump unit (overall
dimensions) to facilitate cleaning and give access if
necessary to the pump, reduction gear and motor faste-
ning nuts. In all cases, the dimensions around the motor-
driven pump unit must be designed to give the space
required for dismantling the pump (if the need arises,
use the values given on the overall dimension drawing).
For staff and equipment protection, the frame includes a
ground connection point that should be used.
WARNING
FAILURE TO RELIEVE SYSTEM
PRESSURE PRIOR TO PERFORMING
PUMP SERVICE OR MAINTENANCE
CAN CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.
Hazardous pressure
can cause
personal injury
or property damage.
WARNING
FAILURE TO INSTALL ADEQUATELY
SIZED PRESSURE RELIEF VALVE(S)
CAN CAUSE PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
Hazardous pressure
can cause
personal injury
or property damage.
WARNING
BE CAREFUL WITH THE WEIGHT OF
THE PARTS WHEN THEY ARE BEING
REMOVED.
The weight ot the parts
can be dangerous and
may provoke bodily inju-
ries
or material damages.
WARNING
DISCONNECT THE ELECTRICITY
SUPPLY BEFORE ANY MAINTENAN-
CE OPERATION.
Dangerous voltage.
Can cause
injury and death.
WARNING
PUMPS OPERATING AGAINST A CLO-
SED VALVE CAN CAUSE SYSTEM
FAILURE, PERSONAL INJURY AND
PROPERTY DAMAGE.
Hazardous pressure
can cause
personal injury
or property damage.
2. INSTALLATION (continued)
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NT 1002-B00 07 19 S4C Pump e
