Document No.:KE-4010-11 Page: 13/58
15. AdjustingValveOpeningRange
15.1Releasethecompressedairfromtheactuatorhousing. Loosenahexagonnutandadjustthepositionof
eitheroneoftwostopperboltsillustratedaboveforyourdesiredvalveopeningposition. Thedimensional
requirementsofbutterflyvalvediscs(AlessBinTable3)orballvalveballs([L]inTable4)mustbesatisfied.
RefertoTable5onthesizesofstopperbolts.
15.2Clockwiserotationofthestopperboltmakesthevalveoperationrangesmaller,andcounter-clockwise
rotationmakesitlarger.
15.3Afterhavingtightenedthenuts,supplythecompressedairtotheportandcheckthevalveopeningrange.
Repeatthisworkuntilyouhaveasatisfactoryresult.
Stopperboltforadjustment
toopeningdirection
Stopperboltforadjustmen
toclosingdirection