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OPERATING AND MAINTENANCE MANUAL
CENTRIFUGAL ELECTRIC PUMP CB SERIES
7.
Storage
The equipment must always be kept in a covered area that is not excessively
damp, protected from atmospheric agents and at a temperature of between
-10°C and +40°C. Avoid direct exposure to sunlight. If the machine is to
be stored for long periods, it is recommended not to remove it from its
packaging.
8.
Installation
The machines must be installed in well-ventilated, non-dusty areas and protected
from the weather. The area must be properly lit (according to the current regulations
for the place of installation), with an ambient temperature of between 5 and 40°C.
Remember that the ambient temperature and the altitude of the place of installation
can affect the cooling of the electric motor. During installation, it is recommended to
assess the place of installation carefully and take into account the space required for
carrying out maintenance on the pump unit or the electric motor. For safety reasons,
the electric pumps must be fixed, in the place of installation, using the holes on the
feet / support base. Avoid installing the motor underneath the pump unit.
9.
Connecting the pipes
The pipes must be fixed and anchored to their supports and connected so
that they do not transmit stresses, voltages or vibrations to the pump. (See
Fig. 4). The internal diameter of the pipes will depend on their length and
the flow rate to be used. This must be chosen so that the speed of the liquid
does not exceed 1.4/1.5 m/s in the suction pipe and 2.4/2.5 m/s in the
delivery pipe. The diameter of the pipes must not be less than the diameter
of the pump inlets / outlets. Make sure that the inside of the pipes are clean
before installing them. The suction pipe must be: (See Fig. 5)
• as short as possible, without pinches or sharp changes in direction
• perfectly sealed and able to withstand the vacuum created by the pump
suction
• directed upwards towards the pump to prevent the formation of air pockets
that could prevent the pump from being primed
or cause it to lose its priming.
In order to use it as a suction lift pump, install a bottom valve with a suction
strainer at the end of the suction pipe, which must be immersed in the water
at a depth of at least twice the diameter of the pipe.
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