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4300Catalog Assembly/Installation Triple-LokAssembly Triple-Lok/Triple-Lok2 Assembly Forleak-freeperformance,theTriple-Lok fittingrequiresthe followingsteps: 1. Cutting,deburringandcleaningofthetube 2. Flaring 3. Flareinspection 4. Installation Fig.T26�FlaringwithHydra- Fig.T27�Nutsandsleeves Tool assembledbeforeflaring Caution:Useonlyseamlessorweldedanddrawntube thatisfullyannealedforflaringandbending.(Seepage U14fortube/fittingmaterialcompatibilityinformation.) FlareInspection Step1hasbeencoveredinaprevioussection(seepageT12). Inspectflarefordimensionsandsurfacequality.TableT18shows theproperflaredimensions.Thesleevecanalsobeusedfora Fortherecommendedminimumandmaximumtubewallthick- quickcheckoftheflaredimensionsasshowninFig.T28. nessforTriple-Lok fittings,pleaserefertoTableC3onpage C8. Flaring Inch Metric 37�Flare Several flaringmethods,rangingfromsimplehandflaringto TubeO.D. TubeO.D. Diameter�A hydraulic/electricpowerflaring,areavailable.Varioustoolsfor (in.) (mm) (in.) flaringareshownonpagesS27throughS32.Power flaring 1/4 6 .340/.360 isquickerandproducesmoreaccurateandconsistentflares 5/16 8 .400/.430 comparedtohandflaring.Therefore,itisapreferredmethodof 3/8 10 .460/.490 flaring.Handflaringshouldbelimitedtoplaceswherepower 1/2 12 .630/.660 flaringtoolsarenotreadilyavailable.TheParflangemachines shownonpagesS24-S25alsoflaretubewithanorbitalflaring 5/8 15&16 .760/.790 processandprovidethebestflareforstainlesssteeltube. 3/4 18&20 .920/.950 1 25 1.170/1.200 Priortoflaring,determinethetubelengthallowanceusingTable 11/4 30&32 1.480/1.510 T17.Thistubelengthallowanceshouldbeaddedtothecuttube lengthtoallowforthe"loss"oftubecausedbyflaring. 11/2 38 1.700/1.730 TableT18--37�FlareDimensions NominalTube O.D. Inch Metric A 1/8 -- 0.07 3/16 -- 0.08 1/4 6 0.09 5/16 8 0.08 3/8 10 0.08 1/2 12 0.12 5/8 14,15,16 0.13 3/4 18,20 0.15 7/8 22 0.15 Fig.T25--Tubelengthallow- 1 25 0.15 ance 11/4 30,32 0.20 11/2 38 0.18 2 42 0.28 TableT17--Tube Fig.T28�ComparingflareO.D.withsleeveseatandO.D. lengthallowance Underflaring(seeFig.T29)reducescontactareacausingex- Flaretubeendusingoneoftheflaringtoolsandfollowingits cessivenosecollapseandleakage;or,inextremecases,tube operatinginstructions.Fig.T26showsflaringwithHydra-Tool. pulloutunderpressure. Note:Besuretoinsertanutandasleeveinproperse- Overflaring(seeFig.T29)causestubenutthreadinterference, quenceandorientationbeforeflaringeitherendofabent eitherpreventingassemblyaltogether,orgivingafalsesense tube,orsecondendofastraighttube(seeFig.T27). ofjointtightnessresultinginleakage. T20 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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