Kitz B Series - Page 23

DocumentNo.:KE-4025-06                                           20/50
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 Retightenthevalveglandsand/orreplacethegland-packingrings
periodically.
 Wherethelinetemperatureexcessivelyfluctuates,connectionsofthevalve
andthepipeflangesmaygetlooseandcauseleakagethroughthegaskets.
Whenleakageisdetected,retightentheflangeboltsandnutsorreplacethe
gaskets.
 Thevalvebodymaybefrozenanddamagedinwinter.Drainwaterfromthe
valveoradequatelyinsulatethevalveinadvancewhenfreezingisforecast.
 Cloggingofairpassagemayresultinanabnormalsound.Takeappropriate
measuresimmediately.
 Anabnormalsoundmaybegeneratedduetogallingofforeignobjectsinthe
valveseat.Replacethedamagedseatsimmediately.
 Excessivevibrationmaycauseexternalleakageormalfunction.Provide
appropriatesupportstothepipeandactuator(Fig.12).
 ForTypeBSWactuators,lubricatethethreadedpartsofthespindle
periodicallywithKITZstandardgreaseShellAlvaniaEP2topreventfixing
ofthespindletothestopper.
 Checktheexpirationdateforuseofthepartialstroketestdevice.Replace
itbeforetheexpirationdate.
 Checktheautomatedopen,closeandPSToperationsbeforestartingthe
operationoftheproduct.
 Ifanytroubleisdetectedinapartialstroketest,checktheactuatorandthe
valveimmediatelyandreplacedamagedparts.