Maintenance Of Injector - Grundfos Oxiperm OCD-164 Montage- Und Betriebsanleitung

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
Pos. Description
10 Diffuser
20 Nozzle
25 Twisting part
30 Base
40 Pressure spring
50 Threaded ring
60 Seat
70 O-ring
80 Diaphragm ring
90 Top part
95 Base part
110 Union nut
120 Piston
Product No.
96681122 (12.6420-3019)
96681126 (12.6421-401)
96681053 (12.5577-300)
96681054 (12.5578-200)
91836364 (12.2493-400)
91834667 (12.175-4)
91834662 (12.120-4)
91835573 (52.139)
91834701 (12.376-4)
96681051 (12.5575-310)
96681052 (12.5576-210)
91834741 (12.561-4)
91834666 (12.171-4)
Do not use any sharp objects to clean the nozzles.
Hydrochloric acid has proved to be the best cleaning
Caution agent.
Observe the regulations for handling hydrochloric
acid.
Pos. Description
130 Diaphragm
140 Cylinder screw
150 Disc
155 Hexagon nut
160 O-ring
170 Diaphragm seat
180 O-ring
190 O-ring
200 Plug
210 O-ring
220 Union nut
230 Insert
240 Flat gasket
Product No.
91834695 (12.312-4)
96687994 (50.1054)
96688017 (50.1326)
96681142 (12.6583-400)
91835590 (52.164)
91834700 (12.375-4)
91835566 (52.125)
91835609 (52.277)
96687957 (48.1210)
91835574 (52.141)
91835736 (53.058-25)
96688366 (53.056-25)
96681143 (12.6584-410)
41