VAG Control Valves - HTI Romania · 2017. 7. 27. · • Retrofitting from manual operation to electric actuator can be easily done. VAG CORFIX® threaded insert with O-ring sealing

VAG Control Valves

Technical details

• NominalpressurePN10...63,class150/300

• NominaldiameterDN150...2000

• Fieldsofapplications:Water,airregulationinwaste-watertreatmentplants

• Standardversion:BodymadeofEN-GJS-400-15(GGG-40)ductileiron,pistonmadeof1.4301stainlesssteel,withanadaptedcontroldevice,wormgearunitandpositionindicator

• Actuatortypes:- Withamanualactuator- Withanelectricalactuator- Withanhydraulicactuator- Withapneumaticactuator

• Insideandoutsideepoxycoating

• Specialversions:- Withaslottedcylindertoregulatehighpressuredifferencesinwaterwithhighsolids(„SZ“)

- Withamultipleorificecylindertoregulatehighpressuredifferences(„LH“)

- Withaspecialcylinder,adaptedtocustomerrequirements- Withadoublecylinderforveryhighpressuredifferences- Withacut-offedgeandasuddenenlargementofthecross-sectionalareaattheseat(„E“)

• Cavitation-freeoperationprovidedbyoptimaldesign

Product features

• Valvesealintheno-flowzoneforalongservicelife.

• Drivewithaself-lockingwormgearunitwithaconstanttrans-missionratioforalinearcontrolcurveinconnectionwithanoptimalcontroldevice.

• Onepiece,compactbodyacrossthefullnominalwidth,thusreducingthenumberofcomponentsandeliminatingpotentialleakpath.

• Hard-facedbronzeguidesforlowoperatingforceswhichalsopreventthepistonfromjamming.

• Balancedpistonforminimaloperatingforces.

• MultipleO-ringsealsforprimaryandsecondarypistonsealing.

• Thevalvecanbeservicedanddismantledwithoutremovingitfromthepipelineifthepipesaresizedforeasyaccessibility.

• Innerpartsmadeofstainlesssteelasastandard(DN150...DN600).

• Quadringconstructionnotsensitivetodepositsonthepiston.

• Valvehighlyefficientthankstoanoptimiseddesignandflowpath.

• Connectingrodinstalledinmaintenance-free,robustbronze/plasticcompoundbushes.

Externalprofilesealingring

Body

Pistonsealedwithaquadring

Self-lubricatingbearinginthepistonrod

Bronzeguiderails

Self-lockingWormgearunit

ClosedbearingsealedwithO-rings-bronzebearingbushesonbothsides

VAG RIKO® Plunger valve

Technical details

• Nominalpressure:PN 10/16,class150

• Nominaldiameter:DN 150...1000

• Fieldsofapplication:Water

• Self-acting,suitableforindependentoperationwithoutanexternalsupplyofenergy;thevalveisoperatedbyitsownmediumviapilotvalve;pressuredifferenceofmediumprovidesthenecessarytorqueforoperation

• Thevalvecontrolsahigherinletpressuretoalower,constantoutletpressure-independentlyofdeviationsoffloworinletpressure

• Standardversion:BodymadeofEN-GJS-400-15(GGG-40)ductileiron,pistonmadeof1.4301stainlesssteel

• Cylinder:stainlesssteel,guidesmadeofbronze


• Witharegulatingcylinder,adaptedtocustomerrequirements

• Cavitation-freeoperationprovidedbyoptimaldesign

• Specialversionsonrequest

Product features

• Valvesealintheno-flowzoneforalongservicelife.

• Hard-facedbronzeguidesforlowoperatingforceswhichalsopreventthepistonfromjamming.

• Balancedpistonforminimaloperatingforces.

• Thevalvecanbeservicedanddismantledwithoutremovingitfromthepipelineifthepipesaresizedforeasyaccessibility.

• Innerpartsmadeofstainlesssteelasastandard(DN 150...600).

• Quadringconstructionnotsensitivetodepositsonthepiston.

• Valvehighlyefficientthankstoanoptimizeddesignandflowpath.

• Leverwithtwobearings,notransmissionofforcesonvalvebearing.

• Fine-poredfilterwithinspectionglassandshut-offvalveforvisualizingthecontaminationlevelinthecontrolcircuit.Flushingalsopossibleinoperationwhileinstalled.

• Leverandcounterweightinmodulardesignforindividualdimensioningaccordinghydraulicconditions.

VAG RIKO® Plunger valve with own-medium control

Self-lubricatingbearinginthepistonrod

Pilotvalve

Filterwithinspectionglassandstopvalve

Valvesealintheno-flowzone

Bronzeguiderails

Pistonsealedwithaquadring

Leverandcounterweightinmodulardesign

Technical details

• NominalpressurePN10/16


• Fieldofapplication:Water

• Standardversion:BodyandbonnetmadeofEN-GJS-400-15(GGG-40)ductileiron,withanSZ40slottedcylinder

• Self-actingvalve,suitableforindependentoperationwithoutanexternalsupplyofenergy

• InsideandoutsideepoxycoatingaccordingtoGSKspecifi-cations

• Specialversions:- DN≥300onrequest- PN25onrequest

• DiaphragmandsealingmadeofEPDMaccordingtoDVGWW270

Product features

• Weldedvalveseatenhancesresistancetowear,isanti-filtra-tionandpreventsthedevelopmentofcorrosion.

• Replaceablecylindersforbetteradaptationtooperatingcon-ditionsandforcavitation-freeoperation.

• VAGCORFIX®press-fittedthreadedinsertspreventexposedcastareasaroundconnectionsandthedevelopmentofcorrosion.

• Integratedventilationinthebonnetfortheautomaticreleaseoftrappedairandforpreventingpressurefluctuations.

• Preformedmembranewithbeadsealingtopreventinstallationerrors,securesealingofthebodyIntegratedstrokedistancereduceswearandincreasestheusefullife.

• Chambered,profilesealingringonthevalveseat,protectedagainstextractionforguaranteedimpermeability.

• Compactcontrolblockforsettingopeningandclosingstrokespeedsseparatelyinordertoadapttheresponsetimestotheoperatingsituation.

• Fine-poredfilterwithinspectionglassandshut-offvalveforvisualisingthecontaminationlevelinthecontrolcircuit.Flushingalsopossibleinoperationwhileinstalled.

VAGCORFIX®threadedinsertwithO-ringsealing

Positionindicator

Filterwithinspectionglassandshut-offvalve

Weldedvalveseat

Preformeddiaphragmwithbeadsealing

VAG PICO® Pressure reducing valve

Pressurereducingpilotvalve

Stainlesssteelcontrolcircuit

Speedadjustment

Separateconnectedpressuregauge

Integratedventilation

Technical details




• Standardversions:BodyandbonnetmadeofEN-GJS-400-15(GGG-40)ductileiron,withanSZ40slottedcylinder





Product features









VAG PICO® Pressure sustaining valve /discharge valve

PositionindicatorPreformeddiaphragmwithbeadsealing



Weldedvalveseat

Stainlesssteelcontrolcircuit


SpeedadjustmentPressuresustainingpilotvalve


Technical details









Product features









VAG PICO® Float valvePreformeddiaphragmwithbeadsealing


Speedadjustment

Floatvalve


Weldedvalveseat


Positionindicator


Technical details









Product features









VAG PICO® Level control valve

Positionindicator

Preformeddiaphragmwithbeadsealing

Levelcontrolvalve



Speedadjustment


Weldedvalveseat


VAG DURA Control valve

Technical details

• NominalpressurePN16

• NominaldiameterDN50…150


• Standardversion:BodyandbonnetmadeofEN-GJS-400-15(GGG-40),valvesealsmadeofEPDMaccordingtoDVGWW270;stem,slottedcylinderandcompensationcylindermadeofStainlesssteel,Stembearingmadeofbrass

• Actuatortypes:- Withamanualgearbox- Withelectricalactuator


• Specialversions:- PN25onrequest- Specialmaterialsavailableonrequest- Slottedcylinderadaptedtooperatingconditions

Product features





• Lowactuatingtorqueduetopressurebalancedcompensationcylinder.

• Sealsreplaceablewithoutdisassemblingthevalvefromthepipeline.

• Retrofittingfrommanualoperationtoelectricactuatorcanbeeasilydone.


Replaceableslottedcylinder

EpoxycoatingaccordingtoGSKqualityspecifications

Compensationcylindersealingwithquadringprofile

Triplestemseal

Weldedvalveseat

Positionindicator

Product features

• Reliablefunctionandlongservicelifeduetocavitation-freedischargeinallcontrolpositions.

• Intensiveenergyconversionthroughumbrella-likebreakingofthejetstream.

• Veryhighdischargecapacityandpreciseregulationwithmostlylinearregulationcharacteristics.

• Cylindricalsleevewithadjustableslidingblockguidesforbetteradjustmentofthecylindricalsleevetopreventsluggishopera-tion.Furthermore,theadjustableslidingblockguidepreventsvibration,whichhasapositiveeffectonthelifeexpectationofthevalve.

• Noriskofdamagetothestructurebyvibration,astheflowisonlydisruptedatthefrontedgesothattherearenopartialseparationsoftheflowinsidethedischargevalve.

• Reliableandrobustsealingsystemwithprimarymetallicandsecondaryresilientsealing,makingthesystemparticularlydurable.

• Easytomaintain,because- sealingcanbereplacedwithoutdismantlingthevalve,- exterioractuatorpartsareeasytomaintainandreplace.

• Noclampingpowertoimpedemovementandunhinderedopeningmovementthroughlongguideandexteriordrivespindles.

• Verysmallactuatorsizesandlowpowerconsumptionduetolowoperatingtorques(largelyrelievedfrompressure).

Technical details

• Nominalpressure- Standardmodel:max.100 mWC(10 bar)incombinationwithvariousconnectingflanges

- Greater nominal pressures can be supplied as special con-structionsuponrequest

• NominaldiametersofDN 400...3000(DN>2000uponrequest)

• Application:Water

• Standardversion:Slidingrailatthefrontandback,holdingdevice,seatringandjacketpipeonthecylindricalsleevemadeofstainlesssteel,bodyasaweldedconstructionmadeofS355J2


• Actuatortypes:- Withamanualgearbox- Withelectricalactuator- Withhydraulicactuator

• Specialversions:- Withapipehood- Withaventingsystem- Coatingspecifiedbycustomer

Adjustableslidingblock

Slidingrail

Doublebevelgearing

Exteriorseatring

Exteriordrivespindle

VAG KSSplus Hollow-jet discharge valve

Notes

Notes

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Fordetailedinformationaboutnominaldiameters,nominalpressuresandtypesthetechnicaldocumentationKAT-Aisauthoritative•Thepicturesarenon-binding

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VAG RIKO® Plunger Valves

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VAG PICO® Pilot Operated Control Valve,

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Reference projects

Documents

VAG Control Valves - HTI Romania · 2017. 7. 27. · • Retrofitting from manual operation to electric actuator can be easily done. VAG CORFIX® threaded insert with O-ring sealing