PATENTED TYPE “S”
Stainless Steel ActuatorsforRotaryandLinearValveApplications
ActuatorTechnology Reinvented
Actuators designed and built to outlast the competitionEarlyinhiscareer,thefounderofQTRCO,EdHoltgraver,wasresponsibleforfieldserviceofalargevalvecompany.Hesawcustomersloselargeamountsofmoney,timeandproductionhoursfrommisappliedproducts,andproductsthatwouldhaveworkedbetterifattentiontodetailhadbeenappliedduringthedesignphase.
WhenfoundingQTRCO,Ed’sintentwastodesignandbuildactuatorsthatsimplydidnotencounterfieldserviceissues.Fromaveryruggedmechanicaldesign to elimination of normal failure modes—slidingparts,sideloadforcesandnumerousseals—theQTRCOactuatorshaveevolvedintoexactlywhatEdhadinmindthosemanyyearsago.
Ouractuatorsconsistentlydemonstratetheabilitytotakeonthemostextremeapplicationsandlastforincrediblylongperiodsoftime.QTRCOcustomersreportyearsofservicewithnofailuresandmaintainingoperationswithnolossinproduction time.
A unique way of doing businessTypically,valveandactuatorcompanyprofitsareverynicelyenhancedthroughthesaleofreplacementpartsinadditiontoactualequipmentreplacement.ButthisisnothowQTRCOdoesbusiness:wedonotprofitfromourcustomers’problems.Werejectthecommonpracticeofpaddingprofitsbyforcinguserstopurchaseoutrageouslyhighpriced,proprietaryreplacementseals.Sealsshouldbecommodityitemsandthemanufacturershouldbewillingtosharethisknowledgewithusers.
Infact,ourbeliefisthatactuatorsshouldnotfailandthesuppliershouldstandbehindtheirproductswithfree replacement parts and a willingness to perform free rebuildsiftheirproductshouldfailinservice,foranyreason,foralongerthannormalperiodoftime.
TABLE OF CONTENTSUnique Philosophy 02 – 03 Built to lastTheQTRCOway
Rack & Gear™ QS Actuators 04 – 05¼ turnTorquesto14,000”#/1580NMDA&SR
Flat Yoke™ FS Actuators 06 – 07¼ turnTorquesto1,000,000”#/113,000NMDA&SR
Extended Rack & Gear™ 08Series PS actuators>90 Degree rotationDA Double actingSRSpringreturnSY Fail centerSZ Fail off center
Linear Series LS Actuators 09DA Double actingSRFailup,faildownFull automation
XRCISER™ Partial Stroke Device 10Integral optionAllQTRCOactuatorsRemotecontrolDiagnosticsNoover-travel
Lock Out – Tag Out 11QS&PSactuators
Maintenance 12SuperiorapproachOnthevalvesealreplacementSparecylindersbuilt-in
Action reversal 13QS,FS&PSactuatorsJustturnthemover
Option 14 OverridesLowpressureSolenoid mountingHighorlowspeed
Automation services 15
Suggested Specifications 16WarrantyContactinformation
Overour14-yearhistory,oursalesvolumeofreplacementpartsandactuatorsispracticallynon-existent.Ourdesignsseetothat,andourwarrantyisatestamenttothecommitmentwehavetoourcustomers,andtheinnovativenessofdesignandengineering of our actuators.
Superior Engineering. Superior Actuators.
RACK & GEAR™ – QS Series
OFFSET CYLINDERS Eliminate internal side forces presentinRack&Pinionstyle actuators,reducingfrictionlosesand failures due to abrasion.
PATENTED RACK & GEAR™ MECHANISM WITH LOW FRICTION ROLLERS AND RAILSOffsetcylindersalignthepistonaxiswiththepiniongearPCD,eliminatingthecantileverforcesinherentinrackandpiniontypeactuators.Lowfrictionrollersandtwinracksiderailsmaintain correct engagement ofthestainlesssteelgearingforabsolutelyexceptionalcyclelife.Additionally,thereducedfrictionenablesoutstandingthrottlingcontrol as demonstrated in numerous‘typicaldiaphragmactuator’applicationswhere corrosionorhighvibration dictated a better solution. Also notethatthelackofrodsealsresults in fewer seal failures.
NON-PRESSURIZED SHAFT SEALS CANNOT FAIL QSseriesspringreturn actuatorsapplynopressure totheshaftseals,eliminating acommoncauseofrack& pinion actuator failure.
DOUBLE ACTING• Torquesto14,000”# /1580NM
• Pressureto150psig / 10 bar
• Temperaturesfrom –60̊Fto+400̊F –50̊Cto+200̊C
• Cycletimesasfast as 0.1 seconds
• Three-yearwarrantyirrespectiveofcycles
SPRING RETURN (SINGLE ACTING)
• Torquesto7,500”# /850NM
• Pressuresto150psig / 10 bar
• Temperaturesfrom –60̊Fto+400̊F –50̊Cto+200̊C
• Cycletimesasfast as 0.1 seconds
• Three-yearwarrantyirrespectiveofcycles
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CAPTURED SPRINGS Locatedinwardofthe pistonssafelyprovideaccessforon-the-valvereplacement of contaminant damaged piston sealswhileeliminatingallotherdynamicsealssotherearefewerchancesofsealfailure.
PRESSURE BALANCED SHAFTSWhileQSSeriesDoubleActingactuatorspressurizetheshaftseals onthereturnstroke,weuseapressurebalancedshaftdesignthatisnotsubjecttothehigh‘pistoning’forcesseenintypicalrack&pinionactuators.
LOW FILL VOLUME
Whenthespringisextended,thepistonliesveryclosetotheendcapleavinglittle‘deadair’volumemeaninglessairiswastedeachcycleandthereisless‘jump’whenastickingvalveisopened.Bycontrast,rack&pinionactuatorswasteconsiderableairfillingthevolumebetweentheirpistons.
Unbalanced shafts are now obsolete!
Unbalancedshaftsleadtohigherfriction,torqueloss,andearlyfailure.TheshaftsealsareneverpressurizedinQSSeriesSpringReturnactuators.
AMAZINGLY RELIABLE
Based on a patented low friction design our stainless steel Rack&Gear™actuatorswereintroducedtothemarketin1998.Sincethenhundredsofusershavefoundthemtooutperform and outlast competitive actuators. One user hasover700doubleactingR&Gactuatorsinstalledaslongastenyearsinachallengingoffshoreapplicationwithnofailures to date.
Anotherwithover300installedspringreturnactuators—manyfrom1999—jokesthat,“we’llgetonetofailsomeday;”andstillanotherchoseourR&Gactuatorstoreplacecorrodingrack&pinionactuatorsbackintheyear2000. AllthreecontinuetospecifyQTRCOR&Gactuatorsfor theirapplicationsbasedontheactuatorperformancerecordaswellastheexceptionalresponseofourorganization.
FLAT YOKE™– FS Series
PATENTED FLAT YOKE™ MECHANISM WITH QUAD BODY SLOTSAuniqueslottedbodyconceptabsorbs100%oftheyokemechanism’ssideloadingforcesleavingthepistonrodcompletelyfreeofbendingstresseswhileallowingterminationoftherodattheyokeandtheadditionofaweightandforcebalancingsecond force module located diagonallyfromthefirst.Weightbalance provides easier lifting andhandlingoftheactuatorsbutalsoreducesvalveneckstresscausebyhighlyunbalancedscotchyokeactuators.Internally,thebalancedforcesassurelessfriction loss and less wear as thereisnonetforceappliedtotheshaftbushings.
LOW STRESS, nested,full diameter springs are designedforinfinitelifeandfarlesslikelytobuckleduetotheirlength/diameter.
DOUBLE ACTING & SPRING RETURN• Torquesto1,000,000”# /113,000NM
• Pressurestosuitsize
• Temperaturesfrom –60̊Fto+400̊F –50̊Cto+200̊C
• Cycletimesasfast as0.2seconds
• Three-yearwarrantyirrespectiveofcycles
HIGHER TORQUES ByincorporatingthepatentedFlatYoke™mechanism,highertorqueoutputsareofferedinaweightandforcebalanced design.
BI-DIRECTIONAL TRAVEL STOPS bothQSandFSactuatorsaminimum of 5 degrees of overtravelineachdirection.Thestopsactonthepistonmotion and impart no side loadingontheshaftasoccurswithrack&pinionandscotchyokedesigns.
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INHERENTLY CANTED YOKEThelongeryokearmsoftheFlatYokedesignallowtheadvantageouscantedyoketorquecurvesimplybychoosingadifferenttravelstopsetting.Thisprovidessubstantiallymorespringendtorquewithouthavingtopurchaseaspecialactuator.Asstandard,FlatYokeactuatortravelstopsaresetto provide a 5 degree canted effect.
LOW FILL VOLUME, captured springs and no rod sealscombinetosaveenergy,addsafetyandreducefailuresfor a low installed cost.
COMMODITY SEALSAllQSandFSactuatorsusereadilyavailablecommodity seals.Wedonothidebehindproprietarycurtainsbutwill tellyoutheactualpartnumbers.Butsincewehavesofew dynamicsealsthatfailsoinfrequentlywewill,forthreeyears,providefreereplacementsofanyfailedsealsoranyotheractuatorpartregardlessofthenumberofcycles.
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BALANCE MEANS HIGHER TORQUE
R&Gactuatorsarelimitedintorqueoutputbythecosttoproducelargergears,butourbusinessphilosophywouldnotallowustodesignanotherscotchyokeactuatorortoimportanoffshorecopy.Weneededauserbeneficialdesignthatsurpassedscotchyokecapabilities.Finally,wefoundthesolution,thenowpatented‘MadeintheUSA’FlatYoke™design.
WhileprovidingalloftheR&Guserbenefits,thelowfriction FlatYoke™employsaflat,balancedyoketoeconomically providehightorqueoutput.Thedecadesoldscotchyoke nowhasaseriouschallenger.Letusshowyou—you’llloveitjustasmuchaswedo.
Canted yokes are now obsolete!
PS SERIES – Extended Rack & Gear
PATENTED RACK & GEAR™ MECHANISM WITH EXTENDED RACKS ProvidesexceptionallifethathasbeenprovenwiththeQSseries.
THE SPLIT BODY AND INTERCHANGEABLE FORCE MODULES BorrowedfromtheFSseries maximizesflexibilitybyenabling useofthefulltorquerangeofthebodymoduleinDA,SR,SY and SZ options.
DA EXAMPLEShownatmid-travel,provides up to 180 degrees of rotation.
SZ EXAMPLE Shownatthefailpositionis configuredfor–90to0to+180 degreesofrotationtosuitaveryunusual valve.
DA, SR, SY & SZ OPTIONS• Torquesto20,000”# /2260NM
• Pressureto150psig / 10 bar
• Temperaturesfrom –60̊Fto+400̊F –50̊Cto+200̊C
• Cycletimesasfastas0.2seconds
• Three-yearwarrantyirrespectiveofcycles
GREATER THAN 90° ROTATIONUsingaweightandforcebalancedhybridoftheQSandFS actuator designs provides greaterthan90degreerotationinoptionalDA(doubleacting),SR(springreturn),SY(failcenter)andSZ(failsomewherebetweencenterandend)versions.
BI-DIRECTIONAL TRAVEL STOPS Allow a minimum of 5 degreesadjustmentateachendoftravel.Longerstopsareareadilyavailableoption.
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LS SERIES – Linear
LINEAR ACTUATION Usingcapturedspringsandthelinearcomponentsofourrotaryactuatorsprovidesasafe,longlasting,lowfrictionsubstitutefordiaphragmtypesinasmallerstainlesssteelpackageforresistancetocorrosion
and vibration.
DOUBLE ACTING, FAIL UP AND FAIL DOWN OPTIONS — AND EVEN PARTIAL STROKE TESTINGVersionsareavailable. Eachcanbemountedtoglobe, gate,diaphragm,oranyother
typeoflinearactionvalve.
PISTON DIAMETERSFrom2to24inches.DAstrokesunlimited,SRstrokesto24inches.
FULL AUTOMATION CAPABILITIES Allowustoautomateyourvalveselectionifconvenientforyou.
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THE XRCISER™ SOLUTION
• Provides100%actuatortorque,fulldiagnosticscapability,redundancies and absolute assurance against over travel in an automated,purpose-builtactuator.
•Asanintegralpartoftheactuatorthereisneveraconcernaboutmatchingactuatorandaccessory.
•Becausetherearenoairflowrestrictionsaswithourpositioner/ switchboxbasedsystem,theXRCISERworksequallyaswellwithsmallandevenverylargeactuators;plus,EmergencyShutDownValvescanbeclosedveryquicklyusingtheunrestrictedairports.
•Becauseoftheassuranceagainstovertravel,farmorefrequentpartialstroketestingispracticalandcanbereadilyprogrammedintotheplantcontrolsystemfortrulyautomatedoperation.
• Inwardprimarypistonsandspringsacttostroketheactuatoras dictatedbytheapplication.Proventandempistons,withpressure andstrokeconfirmationmeans,serveaspneumaticallyengaged hardtravelstopsfortheprimarypistons.
PARTIAL STROKE TESTING DEVICESHavingconcernsaboutvalvespossiblysticking,suchasinEmergencyShutdownValveapplications,facilitieshavehadtochoosefromeitherinconvenient,fulltorque,manuallyoperatedpartialstroketesting,orfullyautomatedfractionaltorque–systemshavingnopositivemeanstoassureagainstspuriousovertravel.Bysomeestimates,averylargepercentageofsuchautomatedsystems,thoughcriticaltoplantsafetyprocess,areneverusedduetoconcernthatanoverclosedvalvemayunintentionallycauseaplantshutdown.
Thetradeoffisacumbersomemanualapproachthatisreasonablyfoolproofandyields100%oftheactuatortorque,oranautomaticapproachthatbyitsverydesigninherentlycannotapplyfullactuatortorquetobreakfreeaslightlystuckvalve–andmightshutdowntheplant.
Visit www.qtrco.com for our PSTD White
XRCISER™– Partial Stroke Testing Device
HOW DOES IT WORK?
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LOCK OUT – TAG OUTOurthirdgeneration,TopMountedLockOuthasreducedthecostofthispopularoption.Whetherdoubleactingorspringreturn,theactuatorcanbelockedintoanyspecifiedtravelposition. Incorporating a simple Tag Out-LockOutdeviceformultiplepadlocksenablesconfirmationthatallworkershavecompletedtheirtasksandareoutofharmswaybeforetheactuator is once again able to cause valve motion.
Padlocksmayalsobeusedtosecuretheunengagedpositiontoassureagainstunauthorizedengagement.
NAMUR ACCESSORY MOUNTINGFullNAMURaccessorymountingcapabilityisretainedasshownherewiththeQTRCO-producedNAMURcastbracket.
TMLO – Top Mounted Lock Out
This product is available only for QS and PS Series Actuators
MAINTENANCE & REPAIR
ALLQTRCOactuatorsaredesignedtopreventfailurebutshouldairentrainedcontaminantscausepistonsealdamage(recall,onspringreturnmodelsthesearetheonlydynamicseals)repaircostsareminimalasseenbycomparisontocompetitiveactuators.
Other Actuators QTRCO• Ahugebillforproprietaryseals
• Facilitiesfacecostlylabor expenses,liftequipmentrental,andworse,lostproductiontimewhiletheactuatorisremoved,disassembled,andre-installed,afterwhichtheaccessoriesmust be recalibrated.
• Ifthecylinderisdamagedafacilityisfacedwithreplacement costs.
• Sealsarereadilyavailablecommodityproducts;forthetermofthewarranty,however,weactuallysendyoufreereplacementseals.
• Theendcapandcylinderisreadilyremoved,thepistonsealiseasilyreplaced,andreassemblyisquick:therearenosubsequentrecalibrationsbecausenosettingshavebeenchanged.Bestofall,bynothavingtoremovetheactuator,therewillbe no valve damage.
• Thecylinderboresarefinishedovertheirfulllength.Asthepistontravelsthroughlessthanhalfthecylinderlength,adamagedcylinderis‘replaced’bysimplyturningitendforendandusingwhatwastheinwardsurfaceasthenewsealingsurface.
Replacing the Seals
Damaged Cylinders
Engineered maintainability
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ACTION REVERSAL: AS EASY AS TURNING THE ACTUATOR TOP SIDE DOWN! Bothsidesoftheactuatorare identicalinallaspects.Unlikeotheractuatorsthatrequiredisassemblyforactionreversal,QTRCOactuatorshavedualmountingcapabilitiesandneedonlybeturnedtopsidedowntoreversetheiraction.
Pressureappliedtotheendcapspushesthepistonsinwardcompressingthespringswhichcausescounterclockwiseshaftrotationinthefirstviewandclockwiseshaftrotationinthesecond.QSseriesactuatorshaveafemaledoublesquaredriveandtheFSseriestwokeyways90degreesaparttoreadilyaccommodatetheaction reversal.
EASE OF MAINTENANCE – ENGINEERED FOR LOWEST COST
EaseofmaintenanceisdifficulttodiscussbecauseitinfersthatyoumayactuallyneedtomaintainaQTRCOactuator,whichisunlikely.However,youdomaintainourcompetitors’actuators,eitherbyreplacementorrepair,(wehavewitnesseduserswithmanyactuatorswithnearassemblylineoperationssetupjustforactuatorrepair)anditisimportanttoexplainthedifferences.
Ifyouneverneedtorepairtheactuator,yousavelabor,equipmentandmostofall:downtime.Whenyoudorepairanactuator,youbeginbyremovingitfromthevalveusingateamofspeciallytrainedtechnicians,perhapsusingrentedcranes,followedbycompletedisassemblyperhapstoreachasimplelittlefailedseal.
Youfindyouneedtopurchasetheproprietarysealfromtheoriginalsupplieratanoutrageouspriceandyouwaitfordelivery.Allthewhileyourplantisdown,becausetheywon’tprovidetheinformationthatwouldallowyoutobuylocallyatreasonableprices.
Asdescribedonpage12,wehaveacompletelydifferentapproach.Wecaremoreaboutfuturebusinessthanprofitingfromyourpain.WegladlytradeshorttermprofitforyourcontinuingpreferenceforQTRCOactuators
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JACKSCREW MANUAL OVERRIDETheJackscrewmanualoverrideisanavailableoptionforspringreturnactuators.Thejackscrewandendcapreplacethestandardendcapwithtravelstop.Anactuatorinthefieldcanbechangedtoorfromajackscrewoverridebyinterchangingtheendcap.
LOW PRESSURETheuseofmultiplepistonsintandemenableshigherspringreturnactuatortorquewhenverylowsupplypressuresareavailable.Asmanyassixpistonshavebeensuccessfullyemployedandmorearepossible.
SOLPAQTheSOLPAQcanoptionallybepre-tubed.ItallowsNAMURsolenoidvalvestobedirectlymountedtotheQSactuator.
HIGH SPEED STROKINGThedirectflowofairintoandoutoftheendcaps,plustheextraruggedconstruction,allowsuseofoversizedairports.Cyclespeedsineachdirectionoflessthan0.1secondscanbeobtainedwithappropriateexternalairhandlingpiping.
Engineered options
UNIVERSAL MOUNTING (UMPS)Despiteinternationalmountingstandards,manydifferingvalvemountingpatternsexist.Forthisreasonourdoublesquarefemaleshaftsareoversizedtoallowadaptersforvalveshaftfit.UMPsallowadaptionofourISO5211actuatormountingpatternstonearlyany1/4turnvalvepattern.
CLOSE MOUNTINGTheidenticaltopandbottommounting and drive capabilities allowsuseoftheQSSeries’excellentthrottlingcharacteristicsonextended/splinedshaftvalvesinaverycompactpackage.Sittingthehollowshaftactuatordownoverthevalveshaftandplacingthedriveadapterintheactuator’stopsideyieldsgreatthrottlingsimilartodiaphragmactuatorsbutwithfarsuperiorcorrosionandvibration resistance.
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Mounting & automation
QS AND FS ACTUATORS ARE DESIGNED TO MOUNT DIRECT TO USER’S VALVES Forbracketsbutwiththeflexibilitytochangemountingpatternstomatchthevalvegeometryortoreplicatethemountingand/oraccessorydrivegeometryofacompetitor’sactuators.
QSshaftshaveoversized ISO double square female to allow valveshaftmatchingadapterswhilethekeyedshaftsoftheFSseries can be manufactured to sizeastheapplicationrequires.
COMPLETE AUTOMATION SERVICESOfferedfortheconvenienceofourcustomers,ourintentisto
makelifeeasierforthosewhochooseQTRCOactuators.Wewilldesignandprovidebrackets(includingoureasily
mountedtwo-pieceOmegadesignwhenapplicable)andcouplers;wewillalsomount,tubeandtest
switchboxes,positioners,manualoverridesandwhateverelsemightbebeneficialtopromotingQSand FS Series actuators. Ofcourse,stainlesssteelmaterialwillbeemployed.
Severn Glocon FZE PO Box 18665 Jebel Ali Free Zone Dubai United Arab Emirates
T. +9714 880 7330 F. +9714 880 7331 [email protected] www.severnglocon.com www.qtrco.com
Actuator Technology Reinvented
EASE OF HANDLING AND MINIMIZING PIPING IMPACT• Shallbeweightbalanced(ExcludesQS03,QS04,QS07andQS12).
• Provisionsshallbeavailabletoenabledirectmounting to capable valves.
• Actuatoractionshallbereversiblewithoutdisassemblyoftheactuator.
LONGEVITY (MAXIMIZE MTBF)• Thereshallbenosideloadingoftheshaftbushings
from normal operation nor from travel stop engagement. (ExcludesQS03,QS04,QS07andQS12)
• Thereshallbenosideloadingappliedtothepistonorpistonrodeitherfromthelineartorotaryconversionmechanismnorfromunbalancedpistondesign.
• Springreturnactuatorsshallhavenomorethanonedynamicsealpercylinderandshaftsealsshallnotbepressurizedbythesupplypressure.
• Thereshallbenoslidingcontactbetweenanycomponentsexceptthecylindersandpistonseals.
• Allactuatorcomponentsshallbestainlesssteelexceptthespringswhichshallbeoptionallyavailableinstainless steel.
MAINTENANCE• Manufacturershallofferfreereplacementofanycomponentthatfailswithinthefirstthreeyearsandshalloffertorebuildanyfailedactuatorduringthisperiodathisfacilityifwepayfreightbothways,andthisshallapplyregardlessofthenumberofcyclestheactuatorhasperformed.
• Springreturnactuatorsshallhavetheabilitytoreplaceall dynamicsealswhiletheactuatorremainsinplaceonthevalveandsuchreplacementshallnotdisturbaccessorysettings.
• Pistonsealsofdoubleactingactuatorsshallbereplaceablewhiletheactuatorremainsinplaceonthevalveandsuchreplacementshallnotdisturbaccessorysettings.
SAFETY• Allspringsshallbefullycapturedandshallnotexpandifthe
actuator is disassembled.
• Alloperatingpressureshallbesafelyexhaustedshouldactuatordisassemblybeimproperlyattemptedwhilepressureremainsinthecylinder.
APPLICATION SUITABILITY• Forapplicationsrequiring,actuatorsshalloffercyclespeeds ofaslittleas0.1secondsbymodifyingonlytheirportsizes.
• ShallofferanintegraloptionofremotelyactivatedPartialStrokeTestingsuchthat100%oftheactuatortorqueisappliedwhilealso providing full assurance against over closure regardless of thenumberofexercisecycles.Fullredundancyanddiagnosticsoptionsshallalsobeavailable.
QTRCO WARRANTY STATEMENTQTRCOwillduringtheperiodof3yearsfromthedateoforiginalinvoice,repairorreplace(atQTRCO’ssoleoption)anyQTRCOactuatorthatfailsinserviceregardlessofthenumberofcycles,providedalwaysthattheactuatorwasinstalledcorrectly,properlymaintained/servicedandappliedaspertheoriginaluserapplicationspecifications.TheactuatormustbereturnedtoQTRCOwithinthe3yearwarrantyperiodatthesender’scost.Thewarrantydoesnotapplytoanyfreightorothercharges.
Suggested specifications
TheSevernGloconGrouppolicyisone of continuous improvement and wereservetherighttomodifythesespecificationdetailswithoutnotice.