EM00136493
rev. 1.0 EN
3
Drilling template for the wall bracket
After about 800 hours of operation, tighten the bolts of the pump body by using a tightening torque of
3 Nm.
In making the hydraulic connections it is necessary to comply with the following instructions:
-
The
BOTTOM FILTER
should be installed at a distance of about 5-10 cm from the bottom, in order to avoid clogging;
-
The installation with the pump below the liquid level is recommended for pumps with very low flow rates. In particular when
dosing products that have a tendency to develop gases (ex: sodium hypochlorite, hydrazine, hydrogen peroxide...)
-
If it is necessary to use tubes longer than those supplied with the installation kit, they must always have the same
dimensions as those supplied with the pump. If the
DELIVERY PIPE
is exposed to direct sunlight, it is recommended the
use of a black UV-resistant pipe;
-
It is advisable for the
INJECTION POINT
to be placed higher than the pump or the tank.;
-
The
INJECTION VALVE
supplied with the pump, should always be installed at the end of the dosing-flow delivery line.
STARTING UP THE PUMP
Once you have checked all the above operations, you are ready to start the pump.
Priming
-
Start the pump
-
Open the priming coupling by turning the knob anticlockwise and wait for the liquid to flow out of the hose connected to it.
-
Once you are sure that the pump is completely filled with liquid you can close the coupling and the pump begins to dose.
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
The pump is running regularly but the
dosage was interrupted
The valves are clogged
Clean the valves or replace them if it’s not possible
to remove the deposits
Eccessive intake height
Position the pump or the tank so as to reduce the
intake height
The liquid is too viscous
Reduce the intake height or use a pump with a
higher flow rate
Insufficient flow rate
Leaky valves
Check the tightness of the nuts
The liquid is too viscous
Reduce the intake height or use a pump with a
higher flow rate
Partial clogging of the
valves
Clean the valves or replace them if it’s not possible
to remove the deposits
Irregular pump flow rate
Transparent PVC tube for
delivery
Use the opaque PE tube for delivery
The diaphragm is breaking
Excessive back pressure
Check the system pressure. Check if the injection
valve is clogged. Check if there is a clogging
between the discharge valves and the injection
point.
Operation without liquid
Check the presence of the foot filter (valve)
The diaphragm is not fixed
properly
If the diaphragm has been replaced, check its
proper tightening
The pump does not turn on
Insufficient power supply
Check if the values on the plate of the pump
correspond to those of the electrical network.
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