卫生级膜元件

Food&DairyProductInformationPage1of2*TrademarkofTheDowChemicalCompanyFormNo.609-00094-604FILMTECMembranesSanitaryHigh-RejectionReverseOsmosisElementsforFoodProcessingFeaturesFILMTECTMROelementscontainhigh-rejectionFT30reverseosmosismembranethathassuccessfullybeenusedtoprocessawiderangeoffoodanddairystreams.Theseelementsareespeciallyeffectiveindewateringorproductconcentration.SanitarygradeFILMTECROelementsaredesignedandconstructedtomeetthecriteriawithin3-ASanitaryStandardNumber45-01,thecriteriausedbytheUSDAdairyplantsurveyprogram.AllcomponentscomplywithFDAstandardsandaresuitableforuseinfoodprocessingapplications.ProductSpecificationsProductPartnumberDesignacitvearea–ft2(m2)RO-3840/30-FF196310/10866481(7.5)RO-3838/30-FF80588/8058980(7.4)RO-3838/48-FF8059060(5.6)RO-3838/64-FF9476150(4.6)RO-3938/30-FF11725985(7.8)RO-8038/30-FF170774375(34.8)ACBFigure1Dimensions–inches(mm)ProducttypeABCRO-384038.75(984.3)0.83(21.1)3.8(96)RO-383838.00(965.0)0.83(21.1)3.8(96)RO-393838.00(965.0)0.83(21.1)3.9(99)RO-803838.00(965.0)1.125(28.58)7.9(200)1.RO-3838andRO-3840elementsaredesignedtofit14gaugestainlesstubing(nominal3.83inchID).1inch=25.4mm2.RO-3938/30-FFisdesignedtofitolderAPVhousings(nomimal101mmID).3.RO-8038/30-FFisdesignedtofitSchedule40,8inchstainlesspipe(nominal7.98inchID).OperatingLimits•Maximumoperatingpressure•Maximumoperatingtemperaturea•pHrange,continuousoperationa•pHrange,short-termcleaningb(max.@50°C)•Freechlorinetolerancec•Hydrogenperoxideusagelimit:ContinuousoperationShort-termcleaning(@77°F/25°Cmaximum)800psi(54.8bar)122°F(50°C)2-111-11.50.1ppm20ppm1,000ppmaMaximumtemperatureforcontinuousoperationabovepH10is95°F(35°C).bRefertoCleaningGuidelinesinspecificationsheet609-00077.cUndercertainconditions,thepresenceoffreechlorineandotheroxidizingagentswillcauseprematuremembranefailure.Sinceoxidationdamageisnotcoveredunderwarranty,FilmTecrecommendsremovingresidualfreechlorinebypretreatmentpriortomembraneexposure.Pleaserefertotechnicalbulletin609-22010formoreinformation.Page2of2*TrademarkofTheDowChemicalCompanyFormNo.609-00094-604DesignGuidelinesProductMax.recirculationcross-flow–gpm(m3/h)Max.element∆P*–psi(bar)RO-3840/30-FF30(6.8)15(1.0)RO-3838/30-FF30(6.8)15(1.0)RO-3838/48-FF40(9.1)15(1.0)RO-3838/64-FF40(9.1)13(0.9)RO-3938/30-FF30(6.8)15(1.0)RO-8038/30-FF80(18.2)13(0.9)*Maximumpressuredropacrossentirevesselis60psi(4.1bar).ImportantInformationNewROspiralelementsmustbecleanedpriortoinitialuse.Thecleaningprocedureshouldbebasedontheapplicationforwhichtheelementsaretobeused.Ifcleaningwithformulatedagentsisnotavailable,analkalinewashwithwettingagentisrecommendedpriortoinitialuse.Anappropriatealkalinewashconsistsofthefollowing:•Flushingwithwater(ensurewaterqualitymeetsguidelinesfoundinbulletin609-00077).•Heatingwaterto113°F(45°C)inrecirculationmode.•Adding0.2%Na-EDTAandNaOHtopH11andrecirculatingfor30minutes.•FlushingwithwateruntilneutralpHisobtained.OperationGuidelinesAvoidanyabruptpressureorcrossflowvariationsonthespiralelementsduringstart-up,shutdown,cleaningorothersequencestopreventpossiblemembranedamage.Duringstart-up,agradualchangefromastandstilltooperatingstateisrecommendedasfollows:•Feedpressureshouldbeincreasedgraduallyovera30-60secondtimeframe.•Beforeinitiatingcross-flowathighpermeatefluxconditions(e.g.,start-upwithhigh-temperaturewater),thesetoperatingpressureshouldbemaintainedfor5-10minutes.•Cross-flowvelocityatsetoperatingpointshouldbeachievedgraduallyover15-20seconds.GeneralInformation•Keepelementsmoistatalltimesafterinitialwetting.•IfoperatingspecificationsgiveninthisProductInformationbulletinarenotstrictlyfollowed,thelimitedwarrantywillbenullandvoid.•Topreventbiologicalgrowthduringsystemshutdowns,itisrecommendedthatFILMTECelementsbeimmersedinapreservativesolution.•Thecustomerisfullyresponsiblefortheeffectsofincompatiblechemicalsandlubricantsonelements.•Maximumpressuredropacrossanentirepressurevessel(housing)is60psi(4.1bar).•Avoidpermeate-sidebackpressureatalltimes.FILMTECMembranesFormoreinformationaboutFILMTECmembranes,calltheDowLiquidSeparationsbusiness:NorthAmerica:1-800-447-4369LatinAmerica:([phone]Europe:([phone]Pacific(ex.China):[phone]China:[phone]:NofreedomfromanypatentownedbySellerorothersistobeinferred.Becauseuseconditionsandapplicablelawsmaydifferfromonelocationtoanotherandmaychangewithtime,CustomerisresponsiblefordeterminingwhetherproductsandtheinformationinthisdocumentareappropriateforCustomer’suseandforensuringthatCustomer’sworkplaceanddisposalpracticesareincompliancewithapplicablelawsandothergovernmentalenactments.Sellerassumesnoobligationorliabilityfortheinformationinthisdocument.NOWARRANTIESAREGIVEN;ALLIMPLIEDWARRANTIESOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSEAREEXPRESSLYEXCLUDED.