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ExperienceInMotionLimitorqueQXTheNextGenerationinSmartQuarter-turnActuation23TheQXspeaksyourlanguage,whetherit’smanagement,technical,financial,operationsorservice.flowserve.comLimitorqueisanoperatingunitofFlowserve,a$4billion-plus/yearcompanystronglyfocusedonautomationandsupportofthevalveindustry.Flowserveistheworld’spremierproviderofflowmanagementservices.Limitorquehasevolvedover80yearssinceitsstrategicintroductionofa“torque-limiting”designthatchangedanindustry.FlowserveLimitorqueofferssolutionsandautomationchoicesforcustomersthatprovide:•Costsavingsfromfielddevicessuchaselectricvalveactuators•Greateroperatingefficienciesfromcontrol-roomperformancesequencing,interlockingandcontinuousprocessoptimization•CompetitiveadvantagesderivedfromincreasedmanagementvisibilityofdatabasesandnetworksLimitorqueisoneoftheprimaryreasonsFlowserveis“ExperienceInMotion.”FlowserveLimitorqueActuationSystemsThefullmeasureofsafetyandreliabilityinthenext-generationsmartquarter-turnactuator.TheFlowserveLimitorqueQXquarter-turnsmartelectronicvalveactuatorcontinuesthelegacyoftheindustry’sstate-of-the-art,non-intrusive,multi-turnMXactuatorbyincludinganabsoluteencoderfortrackingpositionwithouttheuseoftroublesomebatteries.TheQXdesignprovidesenhancedsafetyandreduceddowntimethroughimproveddiagnostics,built-inself-test(BIST)featuresandLimiGard™faultprotection.TheQXdesignbuildsonmorethan10yearsofexperiencewithprovenLimitorqueMXtechnology—thefirst-generationdouble-sealedelectronicvalveactuatorfromFlowservedesignedtoprovidecontrol,easeofuseandaccuracy.TheQXincludesalltheuser-preferredfeaturesoftheMXinaquarter-turnsmartactuatorpackage.Itistheonlynon-intrusive,double-sealedquarter-turnactuatortodisplaytheLimitorquebrand.LimitorqueQXSmartValveActuator45flowserve.comQX:TheNextGenerationinSmartQuarter-turnActuationLongLifeandProtectionLonglifeisexpectedinasmartactuator.Therearemorethan1,000,000Limitorqueactuatorsinstalledaroundtheglobe,ineveryconceivableenvironment.Manyhavebeenfunctioningforover50years.ThislegendaryLimitorquelongevityhasbeencarriedoverintotheQXfamilyofsmartactuators.TheQXhasbeendevelopedwiththeruggednessanddependabilityusershavecometoexpectfromLimitorqueactuatorsforbetterthan80years.Inordertolastalongtimeinsevereenvironments,smartactuatorsmusthaveunparalleledprotection.TheQX’sIP68enclosureratingis20Mfor168hours,regardlessofwhethertheunitisweatherprooforexplosion-proof.Thisisanindustry-leadingfeature.Addothercertificationstothelist–NEMA4,4X,6–andtheQXisunsurpassedinunitprotection.TheQXisdouble-sealed,whichisolatestheterminalcompartmentfromthecontrolsenvironment.Anyleakageintotheterminalcompartmentiscontainedinthecompartment.TheQXispowdercoatedusingapolyesterresininDupontBlueStreakcolor,notonlyforaesthetics,butalsoforprotectioninseverecorrosiveenvironments.TheuseofpowdercoatingensuresthateachQXcanwithstandsaliferousconditionswithoutdegradation.QualityandCertificationsFlowserveLimitorqueisagloballeaderinqualitymanufacturing.AllLimitorqueplantsarecertifiedtoISO9001standards,therecognizedbenchmarkforqualityallovertheworld.ThesameunexcelleduseofcertifiedmaterialsisfoundintheQXasinLimitorque’snavalandnuclear-qualifiedelectricactuators.TheMXhasusedsyntheticgearoilsespeciallyoptimizedforusewithworm-gearsetssincethefirstunitwasshippedin1997,andtheQXisnoexception.AlllubricationusedintheQXissynthetic,capableoftemperatureextremesfrom-60ºCto+70ºC.TheMXwasthefirstnon-intrusiveactuatortouserolledwormsandelectroniccontrolsdesignedandproducedusingsurface-mounttechnology:theQXusescomponentsmanufacturedwiththesameadvancedtechnology.Atruegloballycertifieddevice,theQXmeetsallpertinentEuropeandirectivesincludingATEX,EMC,MachineryandNoise,anddisplaystheCEmarkassociatedwithsuchcompliance.Speed,PrecisionandSimplicityTheQXcontrolpanelfeaturesanimproved32-characterLCDscreenthatprovidesactuatorstatusanddiagnosticsinaneasy-to-use,easy-to-read,graphicalformat.Theindustry’sfirstnon-intrusive,quarter-turnmultilingualactuatorisconfigurableinEnglish,Spanish,German,French,Italian,Portuguese,Mandarin,Russian,BahasaIndonesiaandKatakanaasstandardconfigurationlanguages.Inaddition,theLCDcanberotated180ºforbetterfieldvisibility.Userfriendliness,precision,simplicity,andintuitivesetuparecharacteristicsexpectedofasmartactuator.UsersandvalveOEMsdemandquicksetupandeasy-to-understanddialogueinpreferredlanguages.Theabilitytoeitheruploadnewsoftwareordownloaddiagnosticsisalsocriticaltoimprovingaplant’sefficiency.TheQXprovidescustomerswiththeessentialtoolsforrapidinstallationandroot-causediagnostics.Precisionisexpectedinasmartactuator.TheMXwasthefirstsuchdevicedevelopedwithanabsoluteencoderthatdoesn’trequiretroublesomeandunpredictablebatterybackup.FlowserveLimitorque’sinnovativeabsoluteencodertechnology,developedfortheMX,isusedintheQX.TheQXencoderemployssystem-on-chiptechnologyusingacontactlessmagnetthatexcitesHall-effectdevicestoprovideredundant,12-bitresolutionover360degrees.Thisredundancy,partoftheBIST(built-inself-test)feature,meansthedevicecancontinuetofunctionreliablyuntilanumb