ITRON RR 16 Betriebsanleitung Seite 26

Flow Disc for flow volumes < 10 % of qmax (< 1:10)
DN 25
DesignframeworktillApril1998
111-163-10orificeø24
DesignframeworkfromMai1998
onwards(recessatthebottom)
111-363-10orificeø24
111-163-15orificeø31
Standardmodelwith
Note
Fororificeø24/ø31/ø42,insteadofanO-
ringoracompensationdisk,installtheflowdisk
betweenthevalvediskandthecollaratthevalve
rod .
RemovetheO-ring(valvediskseal)beforeas-
semblingtheflowdiskandthenreinstallit .
Flow disc installation.
Removeinspectionsplatefrombody(Pos .  No8ofmateriallist) .  Loosenhexnut;insertascrewdriver
intotheslotofthethreadtocounterholdthevalverod .  Removevalvedisk,washerandlockwasher . 
RemoveO-ringorcompensationdiskandinstallflowdisk
(payattentiontocorrectposition!) . 
Insertvalvedisk,washerandlockwasher .  Fastenhexnut(max5Nm),counterhold
withascrewdriver(blade:8x1 . 2 or9x1 . 4 mm) .
Reassemblinginspectionsplateonbody,checktightnessafterassembly!
26
DN 50
DesignframeworktillApril1998
111-163-10orificeø24
DesignframeworkfromMai
1998onwards(recessatthebot-
tom)111-163-10orificeø24
111-163-15fororificeø31
111-363-15fororificeø42
Valvediskassy .  111-360-20orificeø54
O-Ring
OrificeØ24
SW17
Compensation
disc
(OrificeØ31,
Ø42andØ54)
SW17
Valvediskassy .  111-360-20
111-363-15fororificeø42
Valvediskassy .  111-560-20
Modelwithflowdisc
fororificeø24/ø31/ø42
SW17
Modelwithvalvediskassy
fororificeØ54&Ø82
The valve disc assemblies are used for orifice 
ø54&82 .  Youdon'tneedremovethecompen-
sationdisk .
DN 80
orificeø54
orificeø82
payattentionto
correctposition
SW17;
SW19(DN80)