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do not run the pump dry (Note: the design of ADH horizontal centrifugal pumps don't allow dry-
running because it causes damage to the inner components of the pump).
start the motor for only one or two seconds to check that the direction of rotation is the same as
the arrow on the pump head.
NOTE: a pump turning backwards will pump but at a greatly reduced capacity and pressure.
3. Operation
3.1 Use and Safety
Dangerous or hazardous actions can cause serious injuries or death to people or serious damage to
materials and so it's important to assure the respect of all the warnings relative to the safety and the correct
use written in this manual.
Verify always that the pumped liquid is compatible with the construction materials of the pump. For
any clarification, please contact AlphaDynamic Pumps SA technical office.
In case of use for pumping aggressive, toxic liquids or liquids dangerous for the health of the
personnel, it's necessary to install on the pump an adequate protection from possible contamination,
proper drainage in case of leakage and warning signs of dangerous product in case of leakage: e.g.
DANGER OF POLLUTION, CONTAMINATION, INJURIES AND/OR DEATH!
Do not downsize the suction. Downsizing the suction is responsible of the cavitation of the pump,
which causes a loss of efficiency and a rapid wear. Downsizing of the discharge is not advisable. If
required, reduction of the capacity can be obtained by means of a valve installed on the discharge
pipe.
Do not loosen the connection of the pump while it's under pressure.
Do not start and/or use the pump if there are signs of leakage in the system.
The working temperatures have to respect the characteristics of the construction materials of the
pump:
· 60 °C polypropylene execution (PP)
· 90° C PVDF execution
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