FLOWTECH flowboost K.H Operation And Maintenance Manual page 10

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The pipe diameter must not be smaller than the diameter of the suction outlet and must be airtight. If the
suction pipe is larger than the outlet, install an eccentric reducer.
If the pump is installed above the level of the liquid to be drawn, a non-return valve must be installed at the
bottom of the pipe or before the pump.
The end of the suction pipe must be sufficiently submerged to prevent air from entering through the suction
vortex when the liquid is at the minimum level.
Shut-off valves of a size suitable for the pipes must be installed at the suction and delivery pipes, to isolate
the pump from the circuit in case of inspection and maintenance.
Install a check valve on the delivery pipe to prevent backflow and water hammers when the pump is
switched off.
The dimensions of the threaded connections of the pump are shown. Use sealing material on the threads
(sealing tape, liquid sealant, paste, hemp, other).
Handling
Check the weight of the machine before starting any lifting operations. The weight is indicated on the rating
plate. The suspension point provided on the pump/electric pump does not match the machine centre of
mass.
During lifting, the machine will tend to rotate around the lifting point until it reaches a balanced position.
Handle with care. Pay attention to the inertia of the object (oscillations in the direction of travel, difficulty in
slowing down and stopping).
Pay attention to suspended loads. Do not stand under them. Pay attention to people, animals and objects in
the work area. Use appropriate work area marking tools and delimiters, where necessary. Do not operate the
pump or let it pass over people.
Installation
Install the electric pump in an accessible location and protected against frost, leave enough space around
the electric pump to allow use and maintenance operations.
Check that there are no obstacles to the motor cooling airflow, ensure at least 100 mm of free space from
the fan.
Drain any liquid leaks, so that they cannot flood the installation site and/or submerge the unit.
The electric pump must ALWAYS be fastened to a concrete foundation or on a metal structure that protrudes
by at least 100 mm from the electric pump, in all directions, sturdy enough to support it stably and with a
mass at least equal to that of the electric pump (recommended 5 times higher).
If the pump runs with liquid at a temperature above 50 °C, anchor the pump only on the side of the motor
bracket and leave the suction side bracket free (versions with two brackets). Install elastic elements between
the pump and the pipes to compensate for thermal expansion.
Place anti-vibration joints between the pump and the foundation to minimise the transmission of vibrations.
Additional protections and guards
The surfaces of the electric pump may reach high temperatures based on the temperature of the pumped
liquid. If deemed necessary, provide guards to prevent accidental contact, without interfering with the normal
functionality of the machine (e.g. motor cooling).
High-speed liquid splashes may be generated in the event of breakage, installation errors or during filling
operations. Provide appropriate fixed or temporary guards, in the event that liquid spills can be dangerous or
harmful to human or animal health.