Grundfos Oxiperm OCD-164, Installation And Operating Instructions Manual

Page: 41 / 528

English (GB)
41
9.4 Maintenance of injector
The injector consists of nozzle, diffuser and holder with
diaphragm non-return valve.
The sucked-in chlorine dioxide is mixed with the motive water in
the diffuser, and transported to the disposal line.
The diaphragm non-return valve prevents water from penetrating
the PE line when the exhaust device is switched off.
If water containing heavy deposits is used, this can lead to losses
in performance when sucking. The nozzle must be cleaned in this
case. Regularly clean the filter of the dirt trap (if fitted).
Fig. 28 Sectional drawing of injector
Caution
Do not use any sharp objects to clean the nozzles.
Hydrochloric acid has proved to be the best cleaning
agent.
Observe the regulations for handling hydrochloric
acid.
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10
Pos. Description Product No. Pos. Description Product No.
10 Diffuser 96681122 (12.6420-3019) 130 Diaphragm 91834695 (12.312-4)
20 Nozzle 96681126 (12.6421-401) 140 Cylinder screw 96687994 (50.1054)
25 Twisting part 96681053 (12.5577-300) 150 Disc 96688017 (50.1326)
30 Base 96681054 (12.5578-200) 155 Hexagon nut 96681142 (12.6583-400)
40 Pressure spring 91836364 (12.2493-400) 160 O-ring 91835590 (52.164)
50 Threaded ring 91834667 (12.175-4) 170 Diaphragm seat 91834700 (12.375-4)
60 Seat 91834662 (12.120-4) 180 O-ring 91835566 (52.125)
70 O-ring 91835573 (52.139) 190 O-ring 91835609 (52.277)
80 Diaphragm ring 91834701 (12.376-4) 200 Plug 96687957 (48.1210)
90 Top part 96681051 (12.5575-310) 210 O-ring 91835574 (52.141)
95 Base part 96681052 (12.5576-210) 220 Union nut 91835736 (53.058-25)
110 Union nut 91834741 (12.561-4) 230 Insert 96688366 (53.056-25)
120 Piston 91834666 (12.171-4) 240 Flat gasket 96681143 (12.6584-410)