05/02/2021 Rev.1
8
3.5 Hydraulic connection
After the exact installation of the pump (see generalities), proceed with the connection.
Suction:
connect the suction tube (PVC soft cristal) to the foot filter that is supplied and put it in the
hose clamp, lock the tube closing the nut. If it utilises a level probe, this one has to be connected to
the filter through the support that is supplied. Put the foot filter into the liquid suction lift tank. Connect
the other extremity to the suction of the pump (lower part of the pump head), unscrew the nut from
the nipple, take off the rubber white disk situated on the tube connection. Let pass the tube through
the nut and the adaptor for the 4x6 tube with a simultaneous action of pressing and rotating, put the
tube on the nipple conical connection (hose clamp) till the end; lock up everything by closing the nuts
well. See fig. 9
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. 9
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. 10
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. 10) 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.
ENGLISH
