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Don't remove the protections of the flanges until the installation and close, if they are not closed
already, the discharge and suction pump connections to prevent the intrusion of foreign bodies.
Be informed that a long period of storage of the pumps can provoke:
· deterioration of the isolation of the motor due to absorption of dampness
· deterioration of the gaskets
2.3.1 Transporting and Positioning
The operators in charge of the assembly/disassembly must be informed and trained on the dangers relating
to the use of mechanical tools, even small ones. When receiving the goods, check that the pump packaging
is undamaged; afterwards proceed as follows:
-According to the equipment size and weight, the plant is either packaged with cardboard, boxes or on pallets.
-Open and discard the packaging
-Consult the Use and Maintenance Manual and comply with its instructions
-Lift the pump with appropriate lifting means, suitable to the weight indicated on the ID plate
-Check the correct tightening of all screws
NOTE: ADH pumps are supplied complete with motor. In case of future handling, if the pump is detached
from the motor, before proceeding with its positioning it must be assembled as described in the Chapter 2.8.
WARNING: the pumps are designed to be positioned and fixed horizontally from the ceiling using
hangers or on the floor on the feet of the motor. The horizontal, centrifugal pumps are not self
priming, therefore they must always be installed next to the suction point, and without forming
siphon in suction.
WARNING: ADH pumps working with heavy solids in suspension or in dry conditions can damage
the sealing as well as cause the fusion of sliding friction parts that may result in fire, therefore the
following rules must be complied with:
A – the pump is not self priming and must be positioned below head
B – the dip tube of the suction pipe must be bent to avoid clogging due to reflux, grit and heavy
matter, and it must be kept away from vortexes or the tank filling pipes
C – the suction pipe must not create siphon
D – any suction filters must be of the basket-type and appropriately oversized (approx. 3 times the
pump suction diameter, to avoid loss of pressure)
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