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4300Catalog Assembly/Installation PortEndAssembly 3. Positionflangeandclamphalves. FlangePorts 4. Placelockwashersonboltsandinsertthroughclamp Largethreadedportconnections,suchasSAEstraightthread, halves. requireveryhightorquetoassemble.Thismakesassembly 5. Handtightenbolts. verydifficult,especiallywherewrenchclearanceislimited.Split flangeconnectionssolvethisproblembydividingthehydraulic 6. Torqueboltsindiagonalsequence(seeFig.T10)insmall loadamongfourboltseachrequiringmuchlesstorque,smaller incrementstotheappropriatetorquelevellistedinTableT6 wrenchesandsmallerwrenchclearance. orT7below. Washers Bolts Flange Clamp Fig.T10�FlangeBoltTighteningSequence FlangeHead O-Ring TappedHoles Dash Flange InchBolt Torque MetricBolt Torque Size Size (J518) ft.lbs. (ISO6162) N-m 8 1/2 5/16-18 17�2 M8 25 12 3/4 3/8-16 25�4.5 M10 49 16 1 3/8-16 31�4.5 M10 49 Fig.T9�4-BoltSplitFlangeComponents 20 1-1/4 7/16-14 41�5 M12* 85 24 1-1/2 1/2-13 52�6 M12 85 32 2 1/2-13 60�6 M12* 135 Therearetwotypesofflangeportconnections: 40 2-1/2 1/2-13 85�9 M12 95 � ISO6162,Type2 48 3 5/8-11 144�15 M16 220 � SAECode614-boltsplitflange 56 3-1/2 5/8-11 125�8 M16 220 � SAECode624-boltsplitflange 64 4 5/8-11 125�8 M16 220 80 5 5/8-11 125�8 M16 220 � ISO6164 *DoesnotmeetISO6162specification. The4-BoltSplitFlangeconsistsoffourmaincomponents: TableT6�Code61FlangeRecommendedBoltTorque � Abody(flangehead) � AnO-ring Dash Flange InchBolt Torque MetricBolt Torque � One"captive"ortwo"split"flangeclamps Size Size (J518) ft.lbs. (ISO6162) N-m 8 1/2 5/16-18 17�2 M8 25 � Fourboltsandwasher 12 3/4 3/8-16 30�4.5 M10 49 Thefour-boltportissimplyacircularopening(flowpassage) 16 1 7/16-14 46�4.5 M12 85 surroundedbyfourtappedholesinacertainpatternforaccep- 20 1-1/4 1/2-13 69�6 M14* 135 tanceoftheflangeclampingbolts.Theflatsurfaceoftheport 24 1-1/2 5/8-11 125�8 M16 210 compressestheO-ringcontainedinthegrooveintheflange 32 2 3/4-10 208�20 M20 425 headwhentheclampboltsaretorqued.Insomeinstances, thegrooveisintheportandnotintheflangehead.Thebolts, *DoesnotmeetISO6162specification. throughtheclamphalves,clampdowntheflangeheadontothe TableT7�Code62FlangeRecommendedBoltTorque flatsurfaceoftheportcompressingandtrappingtheO-ringin thegrooveandleavingnogapforittoextrudeunderpressure. ThehydraulicpressureisthussealedbythecompressedO- SocketScrew Socket Tightening ringaslongastheboltsaretightenedenoughtomaintainsolid BoltCircle HeadCap Torques metaltometalcontactbetweentheflangeheadattheoutside (LK) Screws N-m diameteroftheO-ringandthetopoftheport. LK35 M6 10 LK40 M6 10 FlangePortAssembly LK55 M8 25 Thestepstoproperlyassembletheflangeportclampingbolts TableT8�HydraulicFlangeRecom- are: mendedBoltTorque 1. Inspectcomponentstoensurethatmaleandfemaleport *Ingeneral,variancesoftorqueforsoftmetalports/manifolds(ie:aluminum threadsandsealingsurfacesarefreeofburrs,nicksand block-66%ofspecifiedtorque) scratches,oranyforeignmaterial. 2. LubricatetheO-ring. Dimensionsandpressuresforreferenceonly,subjecttochange. T8 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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