VAG Butterfly Valves
Technical details
• NominalpressuresPN10/16/25
• NominaldiametersDN100…4000
• Fieldsofapplication:Watertreatment,waterdistribution,powerplants,dams/hydropower
• StandardversionwithAUMAwormgear,bodyanddiskmadeofductileironEN-GJS-400-15(GGG-40)
• Actuatortypes:- Withmanualactuator- Withelectricactuator- Withhydraulicactuator- Withpneumaticactuator- WithVAGHYsechydraulicbrake-and-liftunitavailableasasafetyvalve
• EpoxycoatingaccordingtoGSKqualityguidelines
• Modelvarieties:- VAGEKN®H300ButterflyValve,standardandAWWA- VAGEKN®H400ButterflyValve,standardandAWWA- VAGEKN®H600ButterflyValve,forpowerplants- VAGEKN®H1100ButterflyValve,fordams/hydropower- VAGEKN®H1200ButterflyValve,turbineinlet
Product features• Designedtomeetthemoststringentrequirements.
• Theinnovativedesignwithpatentedhydrodynamicdisk,enlargedinnerdiameterandpatentedpressurecompensationchannelsminimisespressurelossandturbulencesintheoutletarea.Thisre-ducesenergycostsandthedistancetodownstreaminstallations.
• Thebearingbusheswithself-lubricatingpropertiesensurealongandreliableservicelifeandlowtorques.
• Thestainless-steelshaftsarecompletelyenclosedbydoubleO-ringsealsandclosedbearinglugs–fortheeffectivecorro-sionprotectionofthebearing.
• Thewear-resistant,corrosion-proofandinfiltration-proofseatwithitsoptimisedgeometryandhigh-precisionfinishensuresthedura-bilityoftheentiresealingsystem.
• Thepatentedtapered-pinconnectionensuresthepermanentlybacklash-freeconnectionoftheshaftanddiskandreliabletorquetransmission.Thecompleteenclosureofthetaperedpinsinthediskpreventscorrosion.
• Automaticsealingsystemintheseat.Theoperatingpressuresupportsthesealingeffect–irrespectiveoftheflowdirection.
• Duetoitsmouldedsealingprofile,theprofiledsealingringischam-beredbetweenthediskandtheretainingringandsothereisnoriskoftheprofiledsealingbeingpulledoutevenathighgapvelocities.
• Runnersintheflangeensureoptimumcastingquality.
• Theadvantagesofthedouble-eccentricbearingare:-Optimummovementoftheprofiledsealingringintotheseat,- Considerablereductionoftheshearstressactingonthepro-filedsealingringensuringminimalwearoftheprofiledsealingringandahighsealingforceatlowoperatingtorques,- Reliefoftheloadontheprofiledsealingringwhenthevalveisintheopenposition,- Theprofiledsealingringcanbereplacedwiththevalveintheopenposition.
Automaticsealingsystem
Pressurecompensationchannels
Retainingring
Picture:VAGEKN®H300ButterflyValve,standardtype
O-ringseal
VAG EKN® Butterfly Valve – H-Series New–forthehighestrequirements
Tapered-pinconnection
Runners
Hydrodynamicdisk
Bodyseatwithhigh-alloyweldoverlayand
optimisedgeometry
Technical details• NominalpressuresPN6/10/16
• NominaldiametersDN200…1200
• Fieldsofapplication:Watertreatment,waterdistribution
• Standardversionwithwormgear;bodyanddiskmadeofductileironEN-GJS-400-15(GGG-40)
• Actuatortypes:- Withmanualactuator- Withelectricactuator
• Epoxycoating
Product features
• Basicversionforthemostcommonwatersupplyapplications.
• Seatwithepoxycoating.
• Thestainless-steelshaftsarecompletelyenclosedbydoubleO-ringsealsandclosedbearinglugs–foreffectivecorrosionprotectionofthebearing.
• Theself-lubricationpropertiesofthebearingbushesensurealongandreliableservicelife.
• Automaticsealingsystemintheseat.Theoperatingpressuresupportsthesealingeffect–irrespectiveoftheflowdirection.
• Duetoitsmouldedsealingprofile,theprofiledsealingringischamberedbetweenthediskandtheretainingringandsothereisnoriskoftheprofiledsealingbeingpulledoutevenathighgapvelocities.
• Theadvantagesofthedouble-eccentricbearingare:- Optimummovementofthesealingringintotheseat;- Considerablereductionoftheshearstressactingonthepro-filedsealingringensuringminimalwearoftheprofiledseal-ingringandahighsealingforceatlowoperatingtorques;
- Reliefoftheloadontheprofiledsealingringwhenthevalveisintheopenposition,
- Theprofiledsealingringcanbereplacedwiththevalveintheopenposition.
VAG EKN® Butterfly Valve – B-Series Newasabasicversion
Seatwithepoxycoating
Picture:VAGEKN®B300ButterflyValve,standardtype(exampleequipment)
Notizen
Reference projects
Fordetailedinformationaboutnominaldiameters,nominalpressuresandtypesthetechnicaldocumentationKAT-Aisauthoritative•Thepicturesarenon-binding
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