Product Manual

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• Before connection, make sure that the tubing and the suction tank are free of dirt and thread residue that
could damage the pump and its accessories.
• Before connecting the delivery tube, partially fill the pump body with diesel fuel to facilitate priming.
• Do not use conical threaded joints that could damage the threaded pump openings if excessively tightened.
• The pump is not provided with any filter. Always install suction filter (on all of the models it is included).
SUCTION TUBING:
- Minimum recommended nominal diameter: 3/4”
- Nominal recommended pressure: 10bar/145PSI
- Use tubing suitable for functioning under suction pressure
DELIVERY TUBING:
- Minimum recommended nominal diameter: 3/4”
- Nominal recommended pressure: 10bar/145PSI
ATTENTION!
It is the installer’s responsibility to use tubing with adequate characteristics.
The use of tubing unsuitable for use with diesel fuel can damage pump, injure persons and cause
pollution.
Loosening of the connections (threaded connections, flanging, gasket seals) can cause serious
ecological and safety problem.
Check all the connections after the initial installation and on a daily basis after that.
Tighten the connections, if necessary.
F5. Considerations Regarding Delivery and Suction Lines
DELIVERY
The choice of pump mode must be made keeping the characteristics of the system in mind.
The combination of the length of the tubing, the diameter of the tubing, the flow rate of the diesel fuel and the
line accessories installed can create back pressure greater than the maximums anticipated such as to cause
the (partial) opening of the pump by-pass with the consequent noticeable reduction of the flow rate supplied.
In such cases, to allow correct functioning of the pump, it is necessary to reduce system resistance, using
shorter tubing and/or of wider diameter and line accessories with less resistance (e.g. an automatic
dispensing nozzle for greater flow rates).
SUCTION
All models are equipped with a self-priming pump with a good suction capacity.
During the start-up phase, with an empty suction tube and the pump wetted with fluid, the electric pump unit
is capable of suctioning the liquid with a maximum difference in height of 2 meters. It is important to point out
that the priming time can be as long as one minute and the pressure of an automatic dispensing nozzle on
the delivery line prevents the evacuation of air from the installation, and, therefore, prevents proper priming.
For this reason, it is always advisable to prime the pump without an automatic delivery nozzle, verifying the