DRAGFLOW S.r.l. - Sede legale: Via Satiro, 11 – 37121 VERONA Italy
Sede amm.: Via Paesa – 46048 ROVERBELLA (MN) Italy ● Tel. +39 0376 1685400
Fax +39 0376 1685499 - Cod. Fisc e P. IVA : IT 02757460239 – R.E.A. Verona n. 280092
Registro Impr. Di Verona n. 189595/1997 Capitale Sociale € 10.400 interamente versato
EL7.5 - EL12.5 (S - SS) User manual - ENG 23/70
4 Operating instructions
The pump has been created to pump suspended matter, even with solid parts, as long as
water is always present. It can be used for civil and industrial purposes, as long as conditions
described in this manual are observed.
In the following, it is assumed that the pump can start/stop after enabling/disabling the
electric power supply with a generic on/off device on the control panel. This represents only
a simplified condition and doesn’t represent the complete solution for the electric devices
required to a safe use of the machine.
Ensure that the piping is connected to the pump with diameter, length and total system load
loss suitable for the nominal duty point of the pump.
4.1 Before starting
Before any starting, always ensure the following conditions:
- no one can stay in the dredging area of the pump;
- the operator place must be clean and dry;
- the operator can easily inspect the dredging area of the pump;
- any electric device must be closed and in safety conditions;
Never operate the immersed pump without
connecting the discharge pipes, because in
absence of the foreseen load loss, the electric
motor could overshoot the maximum current
absorption and in the absence of the suitable
safety devices be completely damaged.
Before any starting, it’s also good practice to check the following general conditions of
the machine:
- coating of the external surfaces;
- integrity of the power cable and all the external waterproof/sealing component
installed in the inlet area of the power cable;
- general tightening of bolts and threaded components.
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