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Multi-stage Pressure Control Valve

Multi-stagePressureControlValve

Size:1-1/2~12”(DN40~DN300)

PressureRating:150~2500LB(PN16~PN420)BodyMaterials:CarbonSteel,StainlessSteel,AlloySteel,DuplexSteelOperation:Pneumaticdiaphragmactuator、Pneumaticpistonactuator、Electricactuator

MPCseriesMulti-stagepressurecontrolvalveutilizesmulti-cagetoreducethepressure.IthasfeaturesofS-shapepassagewayandhighCv.Thevalveplugisdesignedasbalancingstructure,soitcanadjusttheflowstableandhasexcellentanti-differentialpressurecapability.Accordingtodifferentdifferentialpressure,itcanbedesignedwith1to3stagecagetoavoidthegenerationofflashingandcavitationeffectively,idealforservicesofhighgasorliquiddifferentialpressure,flashingandcavitation.

DesignFeature

–Strongflowcapacity–Largeguidingareaforstablemovement–Wideadjustablerangeandhighadjustingprecise–Idealforservicewithhighdifferentialpressure–Lowsealingresistancewithexcellentsealing–Multi-stagecagedesignavoidingcavitationandflashingappearance–Modularizedintegralstructuredesignforeasyinter-changeable–Idealforcontrollingflowofvariouspressureandtemperature

PrincipleofOperation

Theprocessmediumflowsthroughthevalveinthedirectionindicatedbythearrowonthebody.Thepositionofthe3-stageor5-stagevalveplugdeterminesthefreeareabetweenthevalveseatsandplugsandhencethepressuredroporflowratethroughthevalve.Thepressuredropoccursinstagessothatcriticaloperatingconditionslikecavitation,excessivewearandhighnoiseemissionsareavoided.Additionally,theplugstemisbottom-guidedforaddedstabilityandtolimitvibrations.Apressure-balancedversioncanbeusedwithhighdifferentialpressureswheretheforceproducedbytheactuatorintheunbalancedversionwouldbeinsufficienttoclosethevalve.Thevalvescanalsobeequippedwithflowdividerstofurtherreducethenoiselevel.



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