VMPPH隔膜阀

1VMPP-HValvolaamembranaDiaphragmvalveLaVMèunavalvolaamembranaacomandomanuale,convo-lantinononsaliente,ovverochemantienesemprelastessaaltezzadurantelarotazione.Gliorganidimanovrainterni,isolatidalfluido,sonoinmetallo,concuscinettoinPOMperridurrealminimol’attrito.Ilprolungamentoinplasticadellosteloindicalaposizionedellavalvola.Levitichefissanoilcoperchioalcorpovalvolasonoinseritedalbasso,esiavvitanosubussoleaffogatenelcoperchiostesso,evitandointalmodolapresenzasullasuperficieesternadicavitàchepossonoesseredepositidisporciziaoimpurità.Lavalvolaamembrana,moltosemplicenelfunzionamentoedicostruzionecompattaerobusta,puòessereimpiegataconfluidiliquidiogassosi,edèparticolar-menteadattaperfluidiabrasiviocontenentiimpurità.Puòesseremontatainqualsiasiposizione.Ilcomandoavolantinoelatenu-taamembranaconsentonounaefficaceregolazioneeriduconoalminimoirischidicolpod’ariete.PECULIARITÀ:•Elevatocoefficientediflussoeridotteperditedicarico.•Costruzionecompattaemassacontenuta.•Modularitàdellagamma:solo3grandezzedimembraneecoperchiper6diversemisuredivalvola.•Facilesostituzionedellamem-branaditenuta.•Indicatorediposizionefornitodiserie.ACCESSORI:•dispositivodibloccaggiodisicurezza•indicatoreelettricodiposizione(1microinterruttore)•PiastraperallinearetuttiicorpidaDN15aDN50sullastessalineadicentrotubo.TheVMtypediaphragmvalveismanuallyoperatedbyanon-risinghand-wheel.Thatmeansitdoesnotchangehisheightduringtherotation.Metalspindleandsleeveensuretotalreliability.ThecompressionbearingmadeofPOMreducesfrictionandconsequentwear.Theplasticspindleextensionin-dicatesthevalveposition.Thevalvedesigniscompactandsturdy.Thehand-wheelhasbeendesignedwithoutspokes,topro-videincreasedstrength.Threadedinsertsaremoulded-inintothebonnet,thuseliminatingtheneedtodrillholes,andalsoallowingthebodyfixingboltstobeinsertedfromthebottom.Theabovemethodallowsacavi-ties-freebonnet,avoidingdirtandimpuritiesaccumulation.Thediaphragmvalvecanbeusedwithliquidandgaseousfluids,andisparticularlysuitablefordirtyorabrasivemedia.Itcanbemountedinallpositions.Thehand-wheeloperation,andthediaphragmtypesealing,allowaproperregulationandreducethewaterhammer.CHARACTERISTICS:•HighKvvalueandreducedpressurelosses.•Compactandsturdyconstruc-tion,lowweight.•Modularrange:only3dia-phragmsandbonnetsizesfor6differentbodysizes.•Easyreplacementofthesealingdiaphragm.•Positionindicatorasstandard.ACCESSORIES:•Securityblockingdevice.•Electricalpositionindicator(1microswitch)•PlateforDN15-50bodiesalignmentatthesamepipecenter-line.••••••••DN15-50Idatidelpresenteprospettosonofor-nitiinbuonafede.LaFIPnonsiassu-mealcunaresponsabilitàsuqueidatinondirettamentederivatidanormeinternazionali.LaFIPsiriservadiapportarviqualsiasimodifica.Thedatagiveninthisleafletareofferedingoodfaith.Noliabilitycanbeacceptedconcerningtechnicaldatathatarenotdirectlycoveredbyreco-gnizedinternationalstandards.FIPreservestherighttocarryoutanymodificationtotheproductsshowninthisIeaflet.2VMPP-HLEGENDAddiametronominaleesternodeltuboinmmDNdiametronominaleinternoinmmRdimensionenominaledellafilettaturainpolliciPNpressionenominaleinbar(pressionemaxdiesercizioa20°C-acqua)gpesoingrammiPP-Hpolipropileneomopo-limeroEPDMelastomeroetilenepropileneFPMfluoroelastomeroPTFEpolitetrafluoroetilenePOMresinapoliacetalicaPBTpolibutilenetereftala-todnominaloutsidedia-meterofthepipeinmmDNnominalinternaldia-meterinmmRnominalsizeofthethreadininchesPNnominalpressureinbar(max.workingpressureat20°C-water)gweightingramsPP-Hhomopolymerpoly-propyleneEPDMethylenepropylenerubberFPMvinylidenefluoriderubberPTFEpolytetrafluoroethyle-nePOMpolyoxymethylenePBTpolybutylenetere-phthalatedDNRPNgPP-HEPDMFPMPTFEPOMPBTFIP3VMPP-HDatiTecnici32TechnicalDataVariazionedellapressioneinfunzionedellatemperaturaperacquaofluidinonpericolosineiconfrontideiqualiilmaterialeèclassificatoCHIMICAMENTERESISTENTE.Vedereilprospetto“Guidaallaresistenzachimica”.Lecurvemostranoilcomporta-mentodeimaterialiconsideratinell’arcodi10anni.Pressure/temperatureratingforwaterandharmlessfluidstowhi-chthematerialisRESISTANT.See“Aguidetochemicalresistance”.Thecurvesshowtheattitudeoftheconsideredmaterialswithin10years.Variazionedellaportatainrelazio-neallaperditadicaricoFlow-ratevariationrelativetopressurelossCoefficientediflussokv100Percoefficientediflussokv100siintendelaportataQinlitrialmi-nutodiacquaa20°CchegeneraunaperditadicaricoΔp=1barperunadeterminataaperturadellavalvola.Ivalorikv100indicatiintabellasiintendonopervalvolacompleta-menteapertaFlowcoefficientkv100kv100isthenumberoflitresperminuteofwateratatemperatureof20°Cthatwillflowthroughavalvewithaone-barpressuredifferentialataspecifiedrate.Thekv100valuesshowninthetablearecalculatedwiththevalvecompletelyopen403230032251752520136201593dDNkv10050404166350766756513001101002700908020000-10barEPDM-FPMPTFE**PP-HWorkingpressureDiaphragmmaterialValvebodymaterialbar1086420-2002040°C6010080bar10,10,010,001DN15DN25DN32DN40100l/min100010000101DN50DN65DN20DN80DN1001123**Specialdiaphragmsareavailableforpermeation-diffusion**workingpressureworkingtemperaturepressurelost