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� 4300Catalog Ferulok FlarelessBiteTypeFittings Introduction DesignandConstruction ThebasicflarelessbitetypefittingwasfirstdevelopedinEuropein ThethreecomponentsoftheFerulokfittingaredesignedand theearly1930s.TheFerulokfittingwaslaterdevelopedbyParker manufacturedtoproduceahighpressure,leak-freejointupon HannifinandintroducedtotheU.S.marketinthemid-1940s.The properassembly. FerulokfittingdesignutilizesacombinationofprovenEuropean TheFerulokBody�Ferulokfittingbodiesareavailableinover features,coupledwithmanyinnovativeproductimprovements thirtyconfigurations.Theshapedproducts(i.e.elbows,tees, institutedbyParkerHannifin.Today,theFerulokfittingdesign crosses)arehotforged,thenmachinedtothestringentFerulok andperformancecapabilitiesfarexceedthestrictrequirements fittingspecifications.TheforgingprocessusedbyParkerfurther ofSAEJ514andMilitaryStandards(MILF18866).TheFerulok improvesthestrengthandmetallurgicalpropertiesofthefitting fittingisaflarelessfittingthatconsistsofabody,aone-piece material.Straightproductsaremadefromcolddrawnbarstock. precisionmachinedferrule,andanut.Onassembly,theferrule Thecolddrawingoperationensuresconsistentlytightdimen- "bites"intotheoutersurfaceofthetubewithsufficientstrength sionaltolerances,smoothsurfacesandsignificantlyimproved toholdthetubeagainstpressure,withoutsignificantdistortion strength. oftheinsidetubediameter. TheFerulokFerrules�Ferulokfittingferrulesareprecision Theferrulealsoformsapressuresealagainstthefittingbody. machinedwithalldimensionsandsurfacescloselycontrolled, Ferulokfittingshaveavisiblebite,allowingthefittingassembler particularlythecriticalbiteedge,whichismonitoredonanon- tovisuallyinspectthebitequality,thussignificantlyminimizing goingbasis.Ferrulesarethenheat-treatedinamannerthat theriskofimproperassemblyandrelatedserviceproblems. providesthehardness,strength,andtoughnessnecessaryto Ferulok fittingsareespeciallysuitableforusewithtubewall satisfythedemandingserviceconditionsthatexistinindustry thicknessrangingfrommediumtoextraheavy.(RefertoTable today. D2, "RecommendedTubeWallThickness.") Ferulok's robust TheFerulokNuts�Ferulokfittingnutsareeithercoldformed constructionandprovensealingcharacteristicshavegained tosizeandshape,ormachinedfromcolddrawnmaterial.The itpopularityindiversemarketsandapplications.Ferulok fit- coldformingandcolddrawingoperationsprovideamoretightly tingsareroutinelyusedinmarketssuchas:machinetools,air packedgrainstructure,thusimprovingthematerial'sstrength. compressors,chemical,military,oilrefineries,papermaking, Inaddition,coldformingsignificantlyimprovesthefatigueor thermoplasticsprocessing,andmanygeneralindustrialhydraulic endurancestrengthofthenuts. applications. Steel StainlessSteel FerulokFittings ASTM Type ASTM Type ColdFormedBodies A576 C1010/C1008 -- -- ForgedBodies A576 1214/1215 A182 316 BarStockBodies A108 12L14 A479 316 ColdFormedTubeNuts A576 C1010 A479 316L BarStockTubeNuts A108 12L14 A479 316 TubeFerrules A108 12L14 A564 630 Fig.D1�FerulokComponents:Body,FerruleandNut TableD1�StandardMaterialSpecificationsfor FerulokFittings Note:Onrequest,Ferulokcanbefurnishedinmaterialsotherthan thoseshownabove. Finish:Zincwithyellowchromate(beingchangedtoZinc Chromium6Free)isusedonallstandardsteelproducts. Dimensionsandpressuresforreferenceonly,subjecttochange. D4 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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