Dynisco BP420 Series User manual

Brand: Dynisco

Model: BP420 Series

Type: User manual

From lab to production

providing a window into the process

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P/N974183 REVB ECO#50337 Page1of3

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DyniscoBP420BurstPlugs

Reliable,SecurePressure‐ReliefSystem

InstallationInstructions

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From lab to production

providing a window into the process

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P/N974183 REVB ECO#50337 Page2of3

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WARNING:

a. Readthecompleteinstructionsbeforeattemptingtoinstalltherupturedisk.

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b. Itistheuser’sresponsibilityforthedesignofadequateventing andinstallationofadequate vent

piping or directional flow after rupture occurs with the rupture disk as intended. When size is

specified,DyniscoLLCassumesthatadequateprovisionshavebeenmadebythepurchaserand/or

userforproperventingofasystemtorelievethespecificpressure.Locatetherupturediskwhere

peopleorpropertywillnotbeexposedtothesystemdischargeintheeventofrupture.Venttoxicor

flammablefumestoasafelocationtopreventpersonnelinjuryorpropertydamage.

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c. Itis the user’s responsibilitytospecifythe burst pressureratingatthecoincidenttemperatureat

which the rupture disk is to be used. A rupture disk is a temperature sensitive device. The burst

pressureoftherupturediskisdirectlyaffectedbyitsexposuretothecoincidenttemperature.Failure

toutilizearupturediskatthespecifiedcoincidenttemperaturecouldcauseprematurefailureorover

pressurizationofthesystem.

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d. It is the user’s responsibility to ensure that the burst plug snout length and temperature are

appropriate so that after a rupture disk failure, molten plastic/media flows continually out of the

snout.Failuretodosocouldresultinpolymer/mediasolidifyinginthesnoutandoverpressurizing

ofthesystem.

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Itisrecommendedthattheuserinstallandpressurizeasampleburstplugtoburstintheirsystem

toconfirmbytestthattheburstplugfunctionscorrectlyintheirparticularapplication.

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e. Particlesmaydischargewhentherupturediskruptures.Theseparticlesmaybepartoftherupture

diskitself,orotherenvironmentalmatterinthesystem.Itistheuser’sresponsibilitytoensurethat

theparticlesaredirectedtoasafeareatopreventpersonnelinjuryorpropertydamage.

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f. Rupturediskservicelifeisaffectedbycorrosion,creepandfatigue, and physical damage. These

conditionswillderatetherupturedisktoalowerpressure.Theusershouldbepreparedtohandlea

prematurefailureoftherupturedisk.Themediaorotherenvironmentalconditionsshouldnotallow

foranybuild‐uporsolidificationofmediaontherupturedisk.Thismayincreasetheburstratingof

therupturedisk.

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g. Dyniscorupture disks,wheninstalled correctly,willprovide averygood sealforliquidsand most

gasesorvapors.However,Dyniscocannotguaranteetheleakagerateofthedisksealwithoutprior

knowledge of the requirements and details of the piping layout.ConsultDyniscoforguidanceif

leakageiscriticaltotheinstallation.

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h. Thecustomerand/oritsinstallershallberesponsiblefortheproperinstallationofrupturediskdevice

intoasystem.Recommendedtorquevaluesdonotconsiderpipingstressoralignment.

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i. Customersand/oritsinstallersshallberesponsibleforimproperinstallation andphysicaldamage

resultingtherefrom,including,butnotlimitedto,damageresultingfromleakage,impropertorquing,

and/orfailuretofollowinstallationinstructions.

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j. Dynisco standard Terms and Conditions of Sale apply unless otherwise stated in writing by the

manufacturer.

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From lab to production

providing a window into the process



P/N974183 REVB ECO#50337 Page3of3

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Removal,InspectionandPreparation:

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1 RemovingtheexistingAssembly

a Depressurizetheequipmentbeforeattemptingtoremovetheassemblyevenifithasburst.

b Loosenandremovetheburstassemblywiththeappropriatetool.Takecarenottodamagethe

receivingequipment.

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2 InspecttheReceivingEquipment

a Inspecttheseatareaforanyscratches,dents,ornicks.Imperfectionsonthesesurfacescan

causeleaks.DONOTUSEifanyscratches,dentsornicksaredetected,(contactDynisco

immediatelyforinstructions).

b Inspectandcleanthereceivingthreads,usethreadchaseorothersuitablecleaningdevice.

Threadsmustbeingoodconditiontoreceivetherupturediskdevice.UtilizetheDynisco

Machiningtoolkitforproperholesizing.

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3 InspecttheRuptureDiskDevice

a Carefullyremovetherupturediskdevicefromitspackagingandchecktheseatarea,exposed

threadsandpre‐bulgedsurfaceofthediskforanyscratches,dents,ornicks.Imperfectionson

thesesurfacescancauseleaks.DONOTUSEifanyscratches,dentsornicksaredetected,

contactDyniscoimmediatelyforinstructions.

b Installationofadamagedassemblymayresultinprematureruptureofthedisk.

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Installation:

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1 Insertthenewassemblyintothepre‐tappedopeninginthereceivingequipment.

2 Startthreadingbyhandtoensurethethreadsarematchedandingoodcondition.DONOTFORCE

THETHREADS.Continuethreadingtheassemblybyhanduntilfullyseated.

3 Tightenasrequiredtopreventleakagewiththeappropriatetool(wrench,screwdriver,spanner,

etc.)DONOTOVERTIGHTENasthiscandamagesealingsurfacesandthreads.

4 Forassemblieshavingtaperedpipethreads;useTeflontapeorothersuitablepipethreadsealants

asrequiredifcompatiblewiththeprocessmedium.

Dynisco BP420 Series User manual

Dynisco BP420 Series User manual

Dynisco BP420 Series User manual

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