Kitz F Series - Attentions for Users System Design ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１; Product Features ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１

Document No.：KE-4010-11                                            Page: 1/58
1.  Attentionsforuserssystemdesign
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 Holdingvalveposition
KITZpneumaticactuatorsDonotassurenoleakage.Actuatorsdonotholdvalve
positionslongtimewithoutcontinuousairsupply.Ifyouneedtoholdvalveposition
longtimewithoutcontinuousairsupply,contactKITZCorporationoritsdistributors.
 Internalairresidueofspringreturntypeactuators
Outputtorquesofspringreturntypeactuatorsindicatevalueswithoutinternalair
residueremainsinsidetheircylinders.Pleasedesignyoursystemstobeableto
exhaustinternalairresidueatspringreturnaction.Ifinternalairresidueremainsinthe
cylinders,outputtorquewillbesmallandvalvesdonotopenorclosebyspringreturn
action.
 Whenyouuseunderthenextenvironment,pleaserefertous.
1. Corrosiveenvironment
2. Explosiveness,flammableenvironment(explosion-proofspecification)
3. Receivedirectsunlight
4. Vibrationenvironment(Whenanactuatorincreasesvibrationmorethan0.5G)
Donotinstalltheproductunderwater.(Includehighhumidityenvironmentandbe
buriedinsnow)
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 Donotpressurizespringreturntypeactuatorsbreathingport.
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 Prevententeringdust,rainwaterorwasteintoactuatorsthroughthebreathingport.
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2.  ProductFeatures
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2.1 KITZ F Series pneumatic valve actuators are provided with output torque characteristics suitable for
operationofbothKITZballvalvesandKITZbutterflyvalves.
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2.2 KITZ F Series pneumatic valve actuators are designed for direct modular mounting of KITZ optional
accessoriesontheactuatorhousing.
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3.  ProductCodes
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KITZFSeriespneumaticvalveactuatorsareavailableintwotypes,dependingonthedrivemechanism.  Type
FAisforthedoubleactiondrive.  TypeFASisforthespringreturndrive.  Foroperationofvalvesofvarious
sizes,bothtypesareavailablewiththeSize1throughSize6, whichareidentifiedbythelastdigitofeach
productcode,suchasFA-1orFAS-2.