4.3.1 External components
Pos. Component
1a
Water line for dilution water and flushing water
1b
Dilution water extraction device with isolating valve
Container for sodium chlorite (NaClO
3
concentration of 7.5 % by weight) with suction lance and
secondary containment
Container for hydrochloric acid (HCl, diluted
4
concentration of 9 % by weight) with suction lance and
secondary containment
11
Main water line to be disinfected
12
Flow meter (or contact water meter)
14
Dosing line
Injection unit for dosing chlorine dioxide (ClO
15
main water line
16
Sample water line to measuring cell (AQC)
17
Sample-water extraction device
Measuring cell (Grundfos AQC-D11) for checking the
18
chlorine dioxide concentration in the main water line
19
Power supply connection
See the photos in section
12.
Photos.
4.3.2 Internal components
Pos. Component
2
5
, diluted
6
2
7
8
9
10
13
20
) into the
2
21
Solenoid valve for dilution water and flushing water
Dosing pump for sodium chlorite (NaClO
Dosing pump for hydrochloric acid (HCl)
Reaction tank with float switch
Batch tank with float switch and drain cock for chlorine
dioxide (ClO
)
2
Volume compensation bag for chlorine dioxide gas
Activated carbon filter for chlorine dioxide gas
Dosing pump with multi-function valve for chlorine
dioxide
Electronic controller for ClO
measurement and control
2
Analyzer and controller with plain text display
)
2
11