AccuseAl AutomAted Relief VAlVe (ARV) · 2017. 10. 4. · The Accuseal® ARV design provides automatic or manual over pressure protection for steam boiler systems. Operation at lower

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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23

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78

910

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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.