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� 4300Catalog Triple-Lok 37�FlareTubeFittings MaterialsandManufacture HowTriple-LokFittingsWork Triple-Lokfittingcomponentsaremanufacturedusingstate-of- Tighteningofthenutclampsthetubeflarebetweenthebodynose the-artequipmentandmanufacturingtechnologiestoassurecon- (seat)producingaleaktightconnection.Thisclampingonthe structionintegrity,optimumstrengthandtoughness,longservice 37�taperprovidesameasureofelasticitytothejointhelpingitto lifeandthehighestquality.AttheheartoftheTriple-Lokproduct resistlooseningundervibration.Theclampingforceresultsina linearethefinestrawmaterialsandmanufacturingtechnologies smallradialloadthattendstodeformthefittingnoseradially.The asoutlinedinTableC1anddiscussedbelow. resistanceofthenosetoelasticdeformationprovidesaconstant preload(similartoalockwasher)keepingittight. TheTriple-LokBody:Triple-Lokfittingsaremanufacturedin over65configurations.Straightbodiesareeithercoldformedor Theclampingforceprovidedbythenutresiststheopposingforce machinedfromcolddrawnbarstock.Thecoldformingprocess ofthefluidunderpressure.Thejointremainsleaktightaslong ensuresconsistentdimensionaltolerances,improvedmechanical astheclampingforceishigherthantheopposingpressureload. propertiesandbettersurfacefinishes.ShapedTriple-Lokfittings ProperlyassembledTriple-Lokfittingswithappropriatetubewill aremanufacturedfromaone-pieceforgedconstruction.This sealconsistentlyunderpressureuntiltubebursts. forgedconstructioneliminatesthepotentialleakpathassociated SealinginTriple-Lokfittingstakesplacebetweentwosmooth withmulti-componentbrazed fittings.Triple-Loksteelforged metal surfaces, the fitting nose and inside of the tube flare. shapesalsofeatureanoptimumcombinationofhardnessand Therefore,thesealingsurfaceshavetobesmooth,freeofany toughnessforhigh-pressurecapability,minimalnosecollapse nicks,scratches,spiraltoolmarks,splitsorweldbeads.Seamless (typicalofsizes-10andunder)duringrepeatedassemblyand orweldedanddrawnfullyannealedtubeisrecommendedfor longservicelife,evenundersevereoperatingconditions. Triple-Lokfittingsforeaseinflaringandbending.Certaintypes TheTriple-LokSleeves:MoststeelTriple-Lok flaresupport ofhardertubesthatarenotfullyannealedmaynotbesuitable sleevesarecoldformedandheattreatedforanoptimumcombi- forflaringduetothepotentialforimmediateorlong-termcrack- nationofstrengthandductility.Thelargestsizesleeves,-20,-24, ingofthetubeflare.Forspecifictubetypeandwallthickness and-32,aremachinedfromhighstrengthsteel.Stainlesssteel recommendations,pleaseseeTableC3. andbrasssleevesaremachinedfromcolddrawnbarstock. TheTriple-LokTubeNuts:Triple-Loksteeltubenutsarecold Triple-Lok Steel StainlessSteel Brass formed,exceptinsizes�20,-24,and-32,whicharemachined Fittings ASTM Type ASTM Type ASTM Type fromcolddrawnbarstock.Coldformingincreasesthematerial strengthanditsfatigueproperties,impartinghighstrengthand ColdFormed C1010/ A576 -- -- -- -- longerservicelifetothenuts.Smallerstainlesssteelnutsare Bodies C1008 alsocoldformedwhileallbrasstubenutsaremanufactured 1214/ ForgedBodies A576 A182 316 B124 CA377 fromcolddrawnbrassbarstock.Mostcrimpswivelnutsare 1215 alsocoldformed. BarStock B16 CA360 A108 12L14 A479 316 Bodies B453 CA345 RobustPortStud:Theadjustableportstudismanufactured withalongerlocknutdesignedtocovertheuppermostthreads ColdFormed C1010/ A576 A276 316 B121 CA335 completely.Sincethebackupwasherisneverexposedtothe Nuts C1008 upperthreads,itcannotbedamagedduringassembly.Dur- BarStockTube B16 CA360 A108 12L14 A479 316 ingassembly,exposedupperthreads,ascommonwithfittings Nuts B453 CA345 fromotherfittingmanufacturers,canleadtoadeformedbackup ColdFormed SAE SAE CA443 washerthatcanpinchtheo-ringandcreateano-ringextrusion -- -- B111 Sleeves 1020 1020 CA444 gapthathasthepotentialtoleak.Thelongerlocknutalsopro- BarStock videsagreatergripareaforthewrench. A108 C1137 A479 316 B371 CA694 Sleeves DualAngleFemaleSeat:Theseatofthefemaleswivelis manufacturedwithadualanglethatacceptsboththe37�flare TableC1�StandardMaterialSpecificationsfor Triple-LokFittings and45�flarefitting(onlysizes4,5,8and1045�flarefittings). Thedualangleseatalsorepositionstheseallocationaway Note:Onrequest,Triple-Lokfittingscanbefurnishedinmaterials otherthanthoseshownabove. fromthetipofthemaleflarenose,preventingthenosefrom bitingintotheseatandmakingitmoretoleranttominornose Finish:Zincwithyellowchromate(beingchangedtozincchromium 6free)isusedonallstandardsteelproducts. tipdamage. AssemblyandInstallation Please refer to SectionT for the assembly and installation instructionsforTriple-Lokfittings. Dimensionsandpressuresforreferenceonly,subjecttochange. C7 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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