• customer service: 877.963 · pdf file• fuel bunkering • loading ... size...
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Cryogenic Dry Disconnects
and BreakawayCouplings
dixonvalve.com • Customer Service: 877.963.4966
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3Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49662 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Table of ContentsCryogenic dry disconnect couplings ...........................................................................................3-4 Specifications ................................................................................................................................................................3 Howitworks ..................................................................................................................................................................4
Cryogenic break-away couplings .................................................................................................5-6 Specifications ................................................................................................................................................................5 Howitworks ..................................................................................................................................................................6
Power Emergency Release Couplings (PERC) ............................................................................7-8 Specifications ................................................................................................................................................................7 Howitworksandillustration .........................................................................................................................................8
Cryogenic break-away couplings - cable release......................................................................9-10 Specifications ................................................................................................................................................................9 Howitworksandillustration .......................................................................................................................................10
Application images..........................................................................................................................11
Dixon'scouplingsandretentiondevicesaredesignedtoworksafelyfortheirintendeduse.Theselectionoftheproperhose,couplingandretentiondevice,andtheproperapplicationofthecouplingtothehoseareofutmostimportance.
Usersmustconsiderthesize,temperature,application,media,pressureandhoseandcouplingmanufacturer'srecommendationswhenselectingtheproperhoseassemblycomponents.DixonrecommendsthatallhoseassembliesbetestedinaccordancewiththeAssociationforRubberProductsManufacturer's(ARPM)recommendationsandbeinspectedregularly(beforeeachuse)toensurethattheyarenotdamagedorhavebecomeloose.VisitARPMINC.comformoreinformation.
Wheresafetydevicesareintegraltothecoupling,theymustbeworkingandutilized.Theuseofsupplementarysafetydevicessuchassafetyclipsorsafetycablesarerecommended.
Ifanyproblemisdetected,couplingsmustberemovedfromserviceimmediately.
Dixonisavailabletoconsult,trainandrecommendtheproperselectionandapplicationofallfittingswesell.WestronglyrecommendthatdistributorsandendusersmakeuseofDixon'sTestingandRecommendationServices.Call877.963.4966orclickdixonvalve.comtolearnmore.
Safety
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3Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49662 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Cryogenic Dry Disconnect Couplings
Applications:• containerdischarge• fuelbunkering• loading/unloadingoftanktrucks,railcarsandshiptankers,over6,000LNGfuelingoperationssince2013• vaporrecoverylines
Sizes:• 1" - 6"
Material:• stainlesssteel
Features:• singleactionoperationusesastraightforwardturningmotiontoconnectthecouplingsandopentheflowpath• safeandreliable:valvecannotbeopeneduntiltheunitiscoupledanditclosesautomaticallywhendisconnecting,eliminatingspills• usedwithawiderangeofcryogenicliquefiedgaseswithouttheriskofcrossconnectionduetohumanerror
Specifications:• connections:femaleNPT,flangedENandANSI,othersavailableonrequest• workingpressure:1"to4"at360PSI,6"at230PSI• minimumworkingtemperature:-328°F (-200°C)
Approvals: • meetrequirementsforUSCG16715CG-OESPolicyLetterNo.02-15useofdrydisconnectsandbreakawaycoupling/selfsealingquickrelease
• conformstoISO/DTS18683dimensionedfordrydisconnectsusedforbunkering• meetsMSC95/3/4(IGFcode)Section8.5Requirementsforbunkeringsystem• meetstheSocietyForGasasaMarineFuel(SGMF)SafetyGuidelinesforBunkering• DNV,NKKandBVtypeapproved
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5Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49664 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Cryogenic Dry Disconnect CouplingsHow It Works
To disconnect:Turnandpull-it'sreleased,nospillage
To connect:Pushandturn-it'scoupledatfullflow
Flow Diagram
DryCryogeniccouplingsconsistofatankunitoradapterwithaspringloadedpoppetandahoseunitorcouplerwithavalvedrivenbyaninternalcam.Tocouple,simplyaligntherollersonthecouplerwiththenotchesontheadapter,pushthecouplerontotheadapterandrotatepast100degrees.Thissimpleprocesslocksthecouplingtogether,createsaself-sealandopenstheinternalvalvesforfullflowwithlowpressuredrop.Theduelpoppetdesignshut-offmechanismsafelysealsliquidsandgasesbehindthevalveeliminatingfugitiveemissionsandthedangerofaspillofcryogenicfluids.
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5Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49664 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Cryogenic Break-away Couplings
Applications:• containerdischarge• fuelbunkering• loading/unloadingoftanktrucks,railcarsandshiptankers• vaporrecoverylines
Sizes:• 1" - 6"
Material:• stainlesssteel
Features:• operatesindependentlyofshut-offsafetysystemanddoesnotrequireanexternalpowersource• lightweight,easytoresetandrepaironwithsitewithoneperson• highflowrate/lowpressuredrop• positiveshut-offofbothcouplinghalvesresultsinminimumproductloss• passivesecuritywhereahoseorloadingarmcouldbesubjectedtoinadvertentexcessiveloads• canbeinstalledatfixedpointsorinthemiddleofhosestrings• availableasIndustrialorMarinetypes• noloosecomponentswhichcouldbelostafterrelease
Specifications:• connections:femaleNPT,flangedENandANSI,othersavailableonrequest• workingpressure:1"to4"=360PSI,6"=230PSI• minimumworkingtemperature:-328°F (-200°C)
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7Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49666 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
How It Works
Thesafetybreak-awayvalveconsistsoftwohalves,eachwithavalvethathasanO-ringseal.
WhentheCBCcouplingsseparate,itallowsthevalvestoclose.Thetwovalvescloserapidly,minimizingexposuretopersonnelandtheenvironment.
TheCBCcouplingshavethreeexternalbreakbolts.Inthecaseofaxialtensionalloftheboltstakeuptheforcecorrespondingtothebreakforceonthehosewithasafetymargin.
Non-axialforcesconcentratethetensionforcesmorestronglyononebolt,sothatthesafetybreak-awaycouplingreactsinanaturalwaytothereductionofthehosebreakforces.
BEFORE emergency disconnect AFTER emergency disconnect
Cryogenic Break-away Couplings
Flow Diagram
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7Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49666 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Applications:• fuelbunkering• loading/unloadingoftanktrucks,railcarsandshiptankers• vaporrecoverylines
Sizes:• 4"(DN100)to8"(DN200),othersonrequest
Materials:• stainlesssteel• seal:PTFE
Features:• twohalvesclosewhenthereisexcessiveforceorwhen pressurizedNitrogenisintroducedtothecouplinghalves fromacontrolunittobreaktheboltsandseparatethecouplings
Specifications:• calculationoftherequiredwallthicknessismadeaccordingtoEN12516-2• materialissuitableforusewithLNGandnitrogento-328°F(-200°C)accordingto therecommendationsinEN1160
• 1.4404conformstospecificationEN10272• 316LconformstospecificationANSIA479• connections:NPTthread,EN1092(DIN)orANSIB16.5flanges,othersonrequest• temperaturerange:-328°F(-200°C)to150°F(65°C)• recommendedNitrogensupplypressure:200Bar(min150Bar)• recommendedNitrogenlatentsealpressure:2Bar• recommendedtube/hoseinternaldimension:max6.35mm(¼")• recommendedtube/hoselength:max100m(smoothsurfacehose)• timetorelease:<2sec• gasconsumption:max~0.6m3
Power Emergency Release Coupling (PERC)
Size NominalSize PSI StandardBreakForce(kN) MaximumBreakForce(kN)4" DN100 360PSI 52 856" DN150 230PSI 92 1328" DN200 230PSI 165 270
N2 Port
Poppet
Breaking Bolt
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9Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49668 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
TheMannTekCryogenicPERCdesigncombinesthepassivesafetyfeatureknownfromourbreakingpintypebreakawayswiththeabilitytoseparateoncommandwithoutanyforceonthehose.Whenactuatedbyaremotecontrol,apressurizedgascylinderwillopenandgaspressurewillovercomethebreakingbolts.ThePERCsystemcorrespondstostandardEN1474-1:2008
Breaking Pin TypeBreak-aways
•SAFE!
• SEPARATE ON COMMAND!
Power Emergency Release Coupling (PERC)
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9Cryogenic Dry Disconnects & Break-aways Dixon 877.963.49668 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Cryogenic Break-away Couplings - Cable ReleaseApplications:• plantengineering,powerplantconstruction,chemicalindustry,foodprocessing,processtechnologyandtankcleaning
• fillingsystems:railroads,railcars,tanktrucks,ships,tankcontainersandliquefiedgas
Sizes:• 1"(DN25)to8"(DN200),othersonrequest
Materials:• stainlesssteel• seals:PTFE
Features:• sturdydesign• safeoperation• releaseangleupto90°bycableactivation• maintenancefriendly• breakforcedoesnotchangewithsystempressureorangleofpull• protectsyoursystemcomponentsbyminimizingtheamountofstressplacedonyoursystem
Specifications:• calculationofwallthicknessismadeaccordingtoSS-EN12516-2• materialissuitableforusewithLNGandNitrogento-328°F (-200°C)accordingtotherecommendationsinEN1160
• connections:NPTthread,EN1092(DIN)orANSIB16.5flanges,othersonrequest
• temperaturerange:-328°F(-200°C)to150°F(65°C)• pressure:PS25Bar• 1.4404conformstospecificationEN10272• 316LconformstospecificationANSIA479
Size NominalSize MAWP1" DN25 360PSI2" DN50 360PSI3" DN80 360PSI4" DN100 230PSI6" DN150 230PSI8" DN200 230PSI
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11Cryogenic Dry Disconnects & Break-aways Dixon 877.963.496610 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Cryogenic Break-away Couplings - Cable Release
Cablereleaseseriesbreak-awaycouplingsaredesignedtominimizespillageanddamageassociatedwithdriveawayandpull-awayincidents.Couplingsfeatureasimplemechanismandnoloosecomponentstoloseafterrelease.Insomeapplicationsthenecessaryforceofthebreakingboltsmaybetoohightopreventdamagetoloadingarmsorotherpipeandequipment;undertheseconditionstheuseofcablereleasesafetybreak-awaysmaybemoresuitable.
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11Cryogenic Dry Disconnects & Break-aways Dixon 877.963.496610 Cryogenic Dry Disconnects & Break-awaysDixon 877.963.4966
Applications
Connecting 6" Cryogenic Coupler and Breakaway
3" LNG Bunker Line
Disconnecting 3" Cryogenic Hose
Bunker Vessel and Ferry
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Dixon®, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry-disconnects, swivels, and other fluid transfer and control products. The company’s global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food & beverage, steel, fire protection, construction, mining and manufacturing. Dixon®, strategic objective is to create solutions that make products safer, leak-free, longer lasting, and always available.
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