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Idiomas disponibles
OPERATING AND MAINTENANCE MANUAL
CENTRIFUGAL ELECTRIC PUMP CH 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 regu-
lations 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 elec-
tric 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. In the case of a self-priming pump,
the bottom valve can be replaced by a check valve mounted directly on the suction
inlet. In order to use it as a positive head pump, a gate valve must be installed on
the pipe upstream from the pump. (See Fig.3) than 5 m but anyway less than 9 m)
the delivery pipe must have a straight and vertical section at least 1 m long.
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