Installation Positions; Vertical Installation; Place Of Installation - SAER Elettropompe L Serie Manual De Empleo Y Mantenimiento

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PRELIMINARY VERIFICATIONS
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INSTALLATION POSITIONS

The installation positions allowed are shown in Fig. 3.
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Vertical installation

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The pumps are equipped with three threaded holes under the pump body to allow the fixing to bases, feet etc...
Pumps of weight less than 75 kg: the pump can be supported directly by the flanges if the piping is sufficiently rigid and stable.
Pumps of weight more than 75 kg: we recommend the installation with support base (optional).
Installation in horizontal position
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PLACE OF INSTALLATION

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Use suitable means for lifting and transporting the pump / electricpump.
Before executing any operation, turn off the power and prevent it from being reconnected.
Verify that the data shown on the plate, and in particular, power, frequency, voltage, absorbed current, are
compatible with the characteristics of the electric line or current generator available. In particular, the voltage
of the line voltage can have a variance of ± 5% from the nominal voltage value on the plate.
Verify that the chemical/physical characteristics of the liquid to be moved correspond to those specified on
the order.
Verify that the product has not been exposed to the weather inclemency.
For electric pumps: verify that the protection and insulation grade indicated on the plate are compatible with
the environmental conditions.
Verify the environmental conditions: SAER pumps can be installed in enclosed or, at any rate, protected
areas, with maximum ambient temperature of + 40 °C in a non-explosive atmosphere.
For electric pumps: Contact the customer care in case of ambient temperature +40°C or altitude over 1000m
above sea level.
The connection to the water supply must be done in the respect of the local and national standards of the
place where the pump is installed.
Verify that the pump's flow rate and head correspond to the required characteristics.
Before connecting the pipes to the relative openings, make sure that the rotating part of the pump turns freely
and is not hindered. In case of problems please contact our technical assistance servicing.
The pipes must be fixed immediately before and after the pump.
Installation with the motor down is not permitted
The motor terminal box must always point upwards. If necessary, loosen the fixing screws between the
motor and pump and rotate the motor.
For motors having a frame size 160 and above, the engine must be supported in such a way that does not
create tension on the pump and the piping.
Verify that the surrounding area is sufficient for ventilation and allows movement in the case of maintenance.
Select suitables point and area of fixing: verify the prevention of possible vibrations to the surrounding
structures.
The pump/electric pump must be installed as close as possible to the suction point of the liquid.
The available NPSH value in the lifting plant must be always bigger than the pump's NPSH , both in
installation under head and over head in order to avoid cavitation.
As far as hot liquids are concerned, NPSH must be re-calculated, in order to obtain the required head in
any case.
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