CGV-N
6
INSTALLATION
POSITIONING OF THE MACHINE
The pump has to be mounted vertically and in the best possible position to assure an easy connection with
the delivery tube. The machine should be positioned in immediate neighbourhood of the vat or tank so that a
rapid intervention is guaranteed in case of preventive maintenance or damage. It is recommended to
position the pump taking into consideration that the distance between the suction orifice, the ground and the
nearest wall should not be less than 5 times the diameter of the orifice itself.
Recommended Safety Measures
Above all you have to keep a sufficient safety distance between the machine and an eventual
passage for persons. Do not store the pump in spaces together with inflammable or explosive
materials. To assure the safety of the operator or any other interested person the positioning of the
pump should be performed by taking into consideration eventual ruptures of the delivery tube or
overflows of highly corrosive liquid during operation under pressure. Before the installation of the
machine please make sure that the switch is in the "zero" position (OFF) and disconnect the
appliance from the power supply to avoid the accidental actuation of the moving parts.
These operations should be performed only by specialized and trained staff.
SUPPORT AND FIXING OF THE PUMP
They have to be realized with suitable materials to guarantee the stability and the resistance against
eventual exhalations of corrosive vapours from the liquid in the vat or the tank. For the above-mentioned
reasons we recommend to construct the support on which the machine is positioned of stainless steel
according to AISI 316.
At first please carefully prepare the support surface. The pump is introduced into the tank and delicately put
into the right position on the support after having applied the filter or the extension tube (if requested).
Compensate the level by introducing metal shims (AISI 316) between the support plane and the plate so that
the flatness error is limited to 1 mm.
Finally connect the pump rigidly with the support by using the holes applied on the rectangular flange.
CONNECTION WITH THE TUBES (Fig.1)
The delivery tube, which is connected with the mouthpiece of the machine, should not produce any
excessive charges or disproportions.
Elevated forces and excessive movements transmitted to the tube may cause damages on the pump. For
this reason we recommend to use brackets and rigid fixations for the pressure collector. This operation is
essential and indispensable, if you want to obtain a correct operation of the machine.
Another special requirement, which should be strictly observed, is the parallelism between the flange of the
tube and the electric pump. A faulty positioning could cause forced unnatural alignments of the connected
collector and subsequently this could result in leaks on the gaskets or even cracks on some tracts of the
tube.
As already explained in the previous paragraph the application of filter on the suction side is extremely useful
to assure that eventual foreign bodies, which are present in the liquid, do not come into contact with the
impeller and the internal pump body.
Moreover we think that it is highly recommendable to mount a filter case onto the filling tube of the tank.
There should also be mounted two probes, one for the maximum and one for the minimum level. They
