德国WITT阻火器

ProductInforamtionTechnicalDataWITT-GASETECHNIKGMBH&COKG•alargesurfaceareaflamearrestorFAofstainlesssteelconstructionextinguishesanydangerousflashbackente-ringthedeviceinanydirection•atemperaturesensitivecut-offvalveTVextinguishessustainedflashbackslongbeforetheinternaltemperatureofthearrestorsreachesadangerouslevel•aspringloadednon-returnvalveNVpreventssloworsuddenreversegasflowformingexplosivemixturesinthegassupply•afilteratthegasinletprotectsthearrestoragainstdirtcontamination,extendingtheservicelife(only85-10and85-30)Operation/Usage•FlashbackArrestorsareusedtoprotectgascylindersandpipelineoutletpoints(hosesandanyequipment)againstdangerousreversegasflowandflashbacks•forpipelineoutletsandsinglecylinderswithhighusersforexamplesupplyunitsforgascuttingmachines:Models85-10and85-30•fortorchesofburnerswithhighflow:Model85-10NU•forcuttingmachineswithhighflow:Model85-10U•WITTFlashbackArrestorsmaybemountedinanyposition/orientation•onlyonepieceofequipmentmaybeconnectedtoasingleFlashbackArrestor•themaximumambient/workingtemperatureis70°C/158°FMaintenance•annualtestingofthenon-returnvalve,bodyleaktightnessandflowcapacityisrecommended•WITTishappytosupplyspecialtestequipment•FlashbackArrestorsareonlytobeservicedbythemanufactu-rer.ThedirtfiltermaybereplacedbycompetentstaffApprovalsCompanycertifiedaccordingtoISO9001:2000andISO14001CE-markedaccordingto:-PED97/23/EGWITTFlashbackArrestorsforreliableprotectionagainstdangerousreversegasflowandflashbacksaccordingtoEN730/ISO5175-1CertifiedandundersurveillanceEveryArrestor100%tested.➟➟Ø34mm(1.34inch)ca.106mm(4.17inch)Ø34mm(1.34inch)ca.106mm(4.17inch)➟Ø84mm(3.30inch)ca.188mm(7.40inch)➟Ø84mm(3.30inch)ca.162mm(6.38inch)ModelSafetydevices85-1085-10NU85-10U85-30FlamearrestorFAXXXXNon-returnvalveNVXXXXTemperaturesensitivecut-offvalveTVXX–XWeight[g]4344344344580ApprovalDVGWNG-4390BL0421––NG-4390AL0031ApprovalBAMBAM/ZBA/003/04MaterialHousing–Brass;Flamearrestor–Stainlesssteel;Seal–ElastomerTechnicalDataST9WITT-GASETECHNIKGMBH&COKGSAFETYDEVICES:Acetylenex1.04Butanex0.68NaturalGasx1.25Methanex1.33Propanex0.80Oxygenx0.95Towngasx1.54Hydrogenx3.75Conversionfactors:Acetylenex1.04Butanex0.68NaturalGasx1.25Methanex1.33Propanex0.80Oxygenx0.95Towngasx1.54Hydrogenx3.75G7subjecttochange85-1085-10U85-10NUFlowdiagramforair(20°C/68°F)Inletpressure:Pv(bar)Openingpressure:30mbarNormalvolumeflow[Nm3/h](1013mbar/14.7psi,0°C/32°F)85-30Flowdiagramforair(20°C/68°F)Inletpressure:Pv(bar)Openingpressure:10mbarNormalvolumeflow[Nm3/h](1013mbar/14.7psi,0°C/32°F)Model85-1085-10NU85-10U85-30Gasesmax.workingpressure[bar]Acetylene(A)1.51.51.51.5Towngas(C)5.05.05.05.0Naturalgas(M)5.05.05.05.0LPG(P)5.05.05.03.5Hydrogen(H)4.04.04.04.0Ethylene(E)5.05.05.04.0ConnectionsOrder-No.G3/8LH143.002143.039––G1/2LH143.008–143.040–G3/4LH–––147.001G1LH–––147.003G1.1/2IT–––147.0043/4”NPTIT–––147.034Model85-1085-10NU85-10U85-30Gasesmax.workingpressure[bar]Oxygen(O)30.030.030.030.0Compressedair(D)30.030.030.030.0ConnectionsOrder-No.G1/4RH143.013–––G3/8RH143.016143.041143.133–G1/2RH143.019–143.042–G3/4RH–––147.005G1RH–––147.006G1.1/2IT–––147.0083/4”NPTIT–––147.038Otherconnectionsavailableonrequest