API认证闸阀--咨询中国区一级代理经销商深圳科万德机电公司Designedfordependable,he***ydutyper-formanceinabrasiveserviceconditi***,DEMCO®DMgatevalvesarecommonlyselectedforanumberofoilfieldapplicati***,including:应用领域：PumpmanifoldblockvalvesHighpressuremudmixinglinesStandpipemanifoldsHighpressuredrillingsystemblockvalvesWellheadsWelltreatingandfracserviceProductionmanifoldsProductiongatheringsystemsProductionflowlinesTheDemcoseriesDMgatevalveisofferedintwobasicpressureclasses:TheANSIseriesvalvesconformtothestandardflangedimensionandpressurerequirementsforANSIclasses400,600,900and1500.Exceptforthe4"class1500,thesevalvesaredesignedwitheconomical,doubleactingthreadedstem&gate.The4"1500usethesamerisingstemdesignusedinthe4"3000APIseriesvalve.TheAPIseriesvalvesconformtothestandardflangeandpressurerequirementsforAPIclasses2000,3000and5000.Exceptforthe4"andlargerAPI5000,thesevalvesaredesignedwithhe***yduty,doubleactingrisingstems.Bothseriesareofferedwiththreaded,weldandflangedendconnecti***.Endconnection***ailabilityvariesbysizeandpressurebasedonmarketrequirements.SomesizesintheANSIseriesareofferedwithgroovedendconnecti***.)