Cryogenic Dry Disconnects

and BreakawayCouplings

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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

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

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.

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)

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

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

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)

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

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.

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

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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