低温闸阀上海标一阀门有限公司低温闸阀的概述低温闸阀的启闭件是闸板，闸板的运动方向与流体方向相垂直，闸阀只能作全开和全关,不能作调节和节流。闸板有两个密封面,最常用的模式闸板阀的两个密封面形成楔形、楔形角随阀门参数而异,通常为50,介质温度不高时为2°52＇。楔式闸阀的闸板可以做成一个整体，叫做刚性闸板；也可以做成能产生微量变形的闸板,以改善其工艺性,弥补密封面角度在加工过程中产生的偏差,这种闸板叫做弹性闸板。低温闸阀DZ41HDZ40HDZ41YDZ41RDZ41YRDZ40Y使用温度:LCB低温碳钢材质-46-400℃316不锈钢材质-196-400℃304不锈钢材质-100-350℃316L不锈钢材质-250-200℃主要特点CHIEFFEATURES全通径，明杆带支架FULLPORT,OUTSIDESCREWANDYOKE(OS&Y)中法兰螺栓连接BOLTEDBONNET带导向的弹性闸板FLEXIBLEWEDGE,FULLYGUIDED美标结构改进型STRUCTUIREIMPROVEONAPI加长保温颈EXITENSIONHOLDINGNECK伞齿轮操作选配AVAILABLEWITHGEAROPERATOR标准法兰连接FLANGEDEND产品规范ProductSpecification(按照标准)产品规范ProductSpecification设计规范DesignSpec结构长度FacetoFace法兰连接FlangeEnd试验与检验Test&Check压力-温度Pressure-Temp产品标识Marking供货规范SupplyJB/T7749JB/T12221JB/T79JB/T9092GB9131GB/T12220JB/T7928主要零部件材料MainPartMaterial零件名称零部件材料PartMaterialPartName阀体LCBLC1LC2LC3LC4CF8/CF8MCF3/CF3MBody阀盖LCBLC1LC2LC3LC4CF8/CF8MCF3/CF3MBonnet闸板LCBLC1LC2LC3LC4CF8/CF8MCF3/CF3MWedge阀杆1Cr17Ni121Cr18Ni9Ti0Cr14Ni12Mo2Stem密封副STL+STLSTL+STLSTL+STLHardTrim填料柔性石墨FlexibleGraphite(聚四氟乙烯/PTFE)Packing垫片18-8柔性石墨FlexilbGraphiteGasket螺栓1Cr17Ni121Cr18Ni9Ti1Cr18Ni9TiBolt适用温度-46℃-60℃-73℃-101℃-115℃-196℃-196℃SuitableTemp适用介质丙烷、丙烯、甲醇、乙烷、煤气、液氮Propane,Propyoene,Methanol,Ethanol,Coal-Gas,LiquidAmmoniaSuitableMedium低温闸阀的结构图主要外形和连接尺寸MainExternalandConnectionDimen单位Unit：mm产品型号Type公称通径DNPN1.6MPaWT(kg)LDD1D2bZ-ΦdHD0DZ41HDZ40HDZ41YDZ41RDZ41YRDZ40Y-16L201501057555144-Φ143201406251601158565144-Φ1435016073218013510078164-Φ1838518094020014511085164-Φ184202001550250160125100164-Φ185402403065265180145120184-Φ186102403480280195160135208-Φ1869028045100300215180155208-Φ1878030064125325245210185228-Φ18930320110150350280240210248-Φ239803601352004003352952652612-Φ2311804001952504504053553203012-Φ2513904502753005004604103753012-Φ2516205603803505505204704253416-Φ2518106405944006005805254853616-Φ301970640725■主要外形和连接尺寸MainExternalandConnectionDimen单位Unit：mm产品型号Type公称通径DNPN2.5MPaWT(kg)LDD1D2bZ-ΦdHD0DZ41HDZ40HDZ41YDZ41RDZ41YRDZ40Y-25L201501057555164-Φ143201406251601158565164-Φ1435016083218013510078184-Φ18385180104020014511085184-Φ184202001650250160125100204-Φ185402403065265180145120228-Φ186102403580280195160135228-Φ1869028047100300230190160248-Φ2378030065125325270220188288-Φ25930320110150350300250218308-Φ259803601352004003603102783412-Φ2511804002152504504253703323612-Φ3013904502953005004854303904016-Φ3016205604003505505504904484416-Φ3418106406304006006105505054816-Φ341990640910■主要外形和连接尺寸MainExternalandConnectionDimen单位Unit：mm产品型号Type公称通径DNPN4.0MPaWT(kg)LDD1D2D6bZ-ΦdHD0DZ41HDZ40HDZ41YDZ41RDZ41YR)