accuseal automated relief valve (arv) · 2017. 10. 4. · the accuseal® arv design provides...
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AccuseAl® AutomAted Relief VAlVe (ARV)
www.coopervalves.com | +1.800.480.0832 | [email protected]
Accuseal® ARV features & Benefits1. Body/End Connection • Machinedfromforgingsformaterial
structuralintegrity.• EndConnections:RFF-raisedfaceflange–Standard.• Optionsavailableonrequest:BW-ButtWeld,SW-
SocketWeld,RTJ,HubConnectors,Threaded,LensJoint,Wafer,etc.
• Weldoverlayofwettedsurfacestoprotectfromcorrosionanderosion–availableuponrequest.
2 & 3. Ball + Seat = the sealing assembly• Omni-Lap360oTMoptimizesthematchedroundness
oftheballandseatfor100%seal,regardlessofpositioning.Thesealingsurfaceismaximized,providingthewidestmetaltometalsealpossible.Thesealisconsistentlyreliable.
• Corrosionresistantmaterialswithmatchedratesofthermalexpansionareusedonthesealingcomponentstomaintainsealintegrityandreliability.
• CoatingsareroboticallyappliedwithHP-HVOF(highvelocityoxygenfueled)orSprayandFuseprocessesforuniformsurfacethickness,coatingdensityandmaximummetallurgicalbondtowithstandextremeserviceconditions.
• Self-cleaning–theseatsremovealldebrisfromtheballwitheveryon/offcycle,extendingvalvelife.
• Fieldrepairissimplerandfaster,whenrequired.Theballandseatassemblyisvacuumsealverifiedatthefactoryandeasilyreplacedonsite.
4. Wave Spring• Providesresilientloadingofballtoseat.• Provideseffectiveparticulateexclusion.
5. Stem • Surfacemodificationeliminatesgalling
withrotation.• Blow-outproofperASMEB16.34.
6. Inner Stem Seal• Providesprimarymetal-to-metalstemseal.
7. Packing Bushing• Preventsstempackingintrusionintobody.• Workswithstembearingtopreventlateralstemmotion.
8. Packing Rings• Reinforcedgraphite.
9. Anti-extrusion Rings• Preventspackingextrusion.
10. Packing Follower• Thermallymatchedtostemmaterial.• Preventsgallingandcontainsupper
packing.
11. Articulating Gland Flange• Sphericallyengagesthepackingfollowertoprevent
stembindingandgallingduringadjustments.
12. Belleville Springs • Liveloadontheboltedjointeliminates
routineglandadjustments.• Reducesmaintenance.
13. Stem Retaining Ring• Preventsstemmisalignmentduringactuatorinstallation.• Stemcannotbeforcedintoballstemslot.
14. Mounting Flange• PrecisionmachinedtoISO5211.• Externalmountingflangeprovidesrigidmountingfor
easeofadjustment.• Directmountingoptionreduceshysteresisandstem
deflection.
15. Body GasketSpiral Wound Gaskets•Grafoilfilled• 1500pressureclassandbelow
Engineered Body Seal• 2500pressureclassandabove•GoldplatedInconel718• Pressureassistedseal
www.coopervalves.com | +1.800.480.0832 | [email protected]
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Ball Wave Spring SpacerOptimized Seat Load Ring
ArticulatingGlandFlange
EngineeredBodySeal
2500pressureclassandabove
WaveSpring
field Repair KitBall and Seat• Inconel718ballandseat• FusedCarbidecoating• Omni-Lap 360o TM
Computer optimized sealing geometry All field repair kits are vacuumed tested to ensure Class VI shut-off.
Wave Spring• Superiorperformanceto
Bellevillesprings• More predictable force on
ball to seat seal—evenatlowpressure
• Longer spring lifemeanslongervalvelife
www.coopervalves.com | +1.800.480.0832 | [email protected]
Accuseal® ARV
BIlloFMAterIAls-AccuseAl®sPVITEM DESCRIPTIOn MATERIAL
1 Body A182F22Cl.3A182F91
2 Ball Inconel718/Spray&Fuse3 Seat Inconel718/Spray&Fuse4 WaveSpring A-2865 LoadRing 410SSHardfaced6 Spacer 410SS7 Stem A-286Hardfaced8 PackingBushing 316SSHardfaced9 PackingRings Grafoil
10 Anti-ExtrusionRings InconelWireReinforcedGrafoil11 PackingFollower 316SSHardfaced12 ArticulatingGlandFlange 4130Hardfaced13 LiveLoadingBellevilleSprings StainlessSteel14 StemRetainingRing StainlessSteel15 MountingFlange CarbonSteel16 BodyGasket DieformedGrafoil
specialalloysandcoatingsavailableuponrequest cc=chromecarbidecoating
ApplicationsTheAccuseal®ARVdesignprovidesautomaticormanualoverpressureprotectionforsteamboilersystems.Operationatlowerpressuresetpointthanspring-loadedsafetyvalvereduceslifts,maintenanceandincreasesboilerefficiency.
inlet size 1½”,2,2½”
Bore size1”,13/4”,2”
orifice size 0.56”-2.00”
connections • ButtWeld
• RaisedFaceFlange
Per customer specifications
features and Benefits• Omni-Lap360oTMoptimizedroundednessand
matchedballandseatsassembliesensure100%seal
• Applicationspecificcoatings• Withstandsseverethermalshocks• VacuumtestedballandseatensuresClassVI
shut-offbeforevalveassembly• Wavespringmaximizesthermalcyclingstrength
forlongerlife• ISO5211MountingPatterns
1 year warranty on standard service(Contact COOPER® Valves for details)
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Applicationspecifiedorifice
outlet size 3”300,4”300ASMEStandardClass
Otheroptionsavailableupon
request
Asme Pressure class1500,2500,3100LTD,4500LTD
control Package includes• Pressureswitch• Solenoid• Limitswitch• Controlstation
Operates in less than two seconds increasing sealing component life.