11
Fig. 6 – Typical installation
Avoid unnecessary curves and narrow on both the discharge and suction pipes. Apply a 3/8 " or ½" BSP female nipple on the
conduct of the plant to be treated, in the most suitable location for the injection of the product to be dosed. This nipple is not
supplied. Screw the injection valve on the nipple using PTFE tape as a seal (Figure 8). Connect the tube to the conical adapter of
the injection valve and secure with the hose ring nut (4). The injection valve is also a no-return valve.
1.
Plant being treated
2.
conical connection 3/8” – ½” BSP
3.
injection valve
4.
hose ring nut
5.
discharge pump hose
6.
PTFE sealing type
Fig. 7 - Injection valve mounting
Accessories
Supplied with the pump are includes the following articles:
n.1 flexible transparent PVC cristal suction hose, length 4m
n.1 polyethylene semi-rigid white discharge hose, length 2m
n. 1 3/8” BSP injection valve
n.1 foot filter
n.1 instruction manual
REGULATIONS FOR SULPHURIC ACID ADDITIVE (MAX. 50%)
In this case it is necessary to take into account the following:
replace the flexible cristal PVC suction hose with semi-rigid polyethylene hose.
Remove all water present in the pump head (if water mixes with sulphuric acid a great amount of gas is generated
which will overheat the area and cause damage to the valves and pump head).
To perform this operation when the equipment is not fixed to the plant, the pump can be pulsed for seconds (15-30) keeping
it overturned and without piping connected to the fittings. If this is not possible disassemble and reassemble the pump head
(appendix 1) using the four fixing screws.
OPERATING INSTRUCTIONS
Manual Pump
Manual flow rate adjustment using a potentiometer to intervene on the injection frequency. Possibility of a more accurate flow
control at low frequencies using the two buttons 20% and 100%.
Commands
