12
Delivery: connect the pump to the plant always through the injection valve (1/2”Gm) that is
supplied with the installation Kit. Fit a Gf 1/2” nipple on your water supply line and after that fitting,
to the point where you require chemical injection, the injection valve out with teflon and put in into
the pipe. Unscrew the nut, put well the discharge tube (stiff Polyetilene) on the hose clamp of the
nipple’s valve, lock everything by closing the nut well.
Connect the other extremity to the delivery of the pump (upper part of the pump head), by
repeating the instructions above. See fig. 5
Purge: connect another tube’s extremity for the manual purge (2 mt PVC crystal) in the hose
clamp situated on the pump head lower to the right, while the other extremity is to be put into the
suction lift tank. See fig. 6
INSTRUCTION FOR PRIMING
For the priming of the pump in case of high against pressure in the injection, turn the purge knob
for a quarter or a half of round (see fig. 6) until the head pump is completely full. Screw down
again the knob.
ATTENTION!!
If it is necessary to take the pump off the plant, it is important to put the white disk in again, so as
to avoid any exit of the liquid contained in the pump head from dripping out. - During the
installation ensure that the discharge tubing is fixed correctly to avoid that it does not rub against
hard bodies. Avoid also use less bends both on discharge and suction tubing.
- Connect the pump to the plant always through the injection valve (1/2”Gm) supplied with the
installation kit.
- Connect the soft PVC tubing only in suction (on the foot filter side), instead connect the PE
tubing in delivery by verifying that the cut of the tubing is clean and that lateral crushing is not
caused; it is advisable to utilise a cutter instead of scissors.
2.6 Operation
The metering pump is activated by a Teflon diaphragm mounted on a piston enclosed into a
electromagnet, which is fed by continuous current producing a square wave moving the piston
thus, a pressure is produced in the pump body with an expulsion of liquid from the discharge
valve. Once the electric impulse is over, the return of the piston is spring assisted thus producing
the suction action to the initial position, with a recall of liquid through the suction valve. The
material used for the construction of the pump makes it particularly suitable for aggressive liquids.
We suggest you in any case to use the compatibility tables or our technical department.
Dimensions
Series HC 1 pump - wall mounting (Fig. 1)
Series HC 1 pump - base mounting (Fig. 2)
Series HC 2 pump (Fig. 3)
Series HC 3 pump - wall mounting (Fig. 4)
Series HC 3 pump - base mounting (Fig. 5)
Series HC 4 Vertical
pump
(Fig. 6)
Series HC 4 Horizontal pump
(Fig. 7)
ENGLISH
