Affetti Pumps CGV-L, Руководство пользователя

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12
Recommended Safety Measures
To operate in conditions of extreme safety during the control of the running machine the operator
should be adequately equipped.
Rubber gloves and boots, anti-acid overalls and helmet with protective visor for the face are the
indispensable equipment for the persons who have to operate without running the risk of physical
damages.
The described operations have to be carried out by skilled staff.
EVENTUAL DRY FUNCTIONING OF THE PUMP
The principal rule, which you should observe at any instant, says that with a machine of this type you must
avoid in every possible way that it functions without liquid. Only in this way you can exclude damages on the
rotating parts.
There are many situations in which this drawback might occur:
The malfunction of the control instruments due to the encrusting and corrosive action of the pumped
liquids, which attacks the most exposed organs.
A poor and inefficient maintenance of the filter.
The most frequent one is the absolute or partial lack of liquid in the vat or in the tank. In this case you
should equip the machine with suitable instruments, which block the pump, if the flow of pumped liquid is
lacking (see paragraph "CONTROL INSTRUMENTS" on page 6).
IMPURITIES CONTAINED IN THE PUMPED LIQUID
Due to their nature ad design the pumps of this series have got low endurance levels in case of liquids,
which contain solid, abrasive or filamentary particles.
We recommend to avoid, if possible, the pumping of such fluids or to install filters on the suction orifice and
on the filling tube of the vat. In any case you should take into consideration that the maximum allowable
concentration of impurities is 3 %. With higher values could be caused serious problems on the guide
sleeves, the impeller, the body and the internal parts of the pump.