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NT 1001-F00 10.10 C12 A - C18 A e
• Protection against excess pressure :
The pump must be protected against excess pressure.
It can be delivered with a pressure switch to carry out
this function.
If protection is provided by a control valve, check that the
system does not generate excess pressure at the bel-
lows (particularly if there are water hammers). Operating
in this way would damage the bellows and shorten their
lifetime.
• Protection against foreign bodies :
The pump and the installation must also be protected
against any risk of damage through the passage of foreign
bodies by mounting a pre-filter at the pump suction.
In the case of foreseeable clogging of the pre-filter, we
recommend using a vacuum switch to inform the user
of pre-filter clogging. Prolonged running under cavita-
tion may damage the pump.
2.4 Hoisting devices
Hoisting points :
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 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.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death
.
BE CAREFUL WITH THE WEIGHT OF
THE PARTS WHEN THEY ARE BEING
REMOVED.
WARNING
The weight ot the parts can
be dangerous and may
provoke bodily injuries or
material damages.
PUMPS OPERATING AGAINST A CLOSED
VALVE CAN CAUSE SYSTEM FAILURE,
PERSONAL INJURY AND PROPERTY
DAMAGE.
CAUTION
Hazardous pressure
can cause
personal injury
or property damage.
FAILURE TO INSTALL ADEQUATELY SIZED
PRESSURE RELIEF VALVE(S) CAN CAUSE
PROPERTY DAMAGE, PERSONAL INJURY
OR DEATH.
CAUTION
Hazardous pressure
can cause
personal injury
or property damage.
INCORRECT SETTINGS OF THE PRESSU-
RE RELIEF VALVE CAN CAUSE PUMP
COMPONENT FAILURE, PERSONAL INJURY,
AND PROPERTY DAMAGE.
CAUTION
Hazardous pressure
can cause
personal injury
or property damage.
2. INSTALLATION (continued)
