点击放大产品型号：J41H法兰式截止阀产品特点：截止阀（stopvalve,GlobeValve）的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，J41H法兰式截止阀的详细资料：J41H/Y法兰式截止阀截止阀（stopvalve,GlobeValve）的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。截止阀只适用于全开和全关，不允许作调节和节流。截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀门时，操作力所需要克服的阻力，是阀杆和填料的摩擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。近年来，从自密封的阀门出现后，截止阀的介质流向就改由阀瓣上方进入阀腔，这时在介质压力作用下，关阀门的力小，而开阀门的力大，阀杆的直径可以相应地减少。同时，在介质作用下，这种形式的阀门也较严密。我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下。截止阀开启时，阀瓣的开启高度，为公称直径的25%～30%时，流量已达到最大，表示阀门已达全开位置。所以截止阀的全开位置，应由阀瓣的行程来决定。法兰式截止阀执行标准AdministerStandard设计与制造DesignandManufacture结构长度FaceToFace法兰尺寸FlangeDimension压力-温度PressureTemperatureLating试验-检验InspectionAndTestGB122235GB12221GB9113JB79GB9131GB/T13927JB/T9092法兰式截止阀压力试验PressureTest公称压力NominalPressure1.62.54.06.410.016.0强度试验ShellTest2.43.86.09.615.024.0水密封试验WaterSealTest1.82.84.47.011.018.0上密封试验BackseatTest1.82.84.47.011.018.0气密封试验AirSealTest0.5-0.7法兰式截止阀主要零件材料及性能MainPartMaterialsandProperty体、盖、板BodyCoverDisc阀杆Stem密封面SealingFace垫片SealingShim填料Packing工作温度℃WorkingTemperature适用介质SuitableMediumWCB2Cr1313CrSTL木体材料WithBodyMaterial尼龙Nylon增强柔性石墨EnhancedFlexibleGraphite13Cr/柔性石墨1Cr13/FlexibleGraphite08软钢08SoftSteal0Cr18Ni9Ti0Cr17Ni12Mo2TiXD550F(T)PTFE柔性石墨增强柔性石墨FlexibleGraphiteEnhancedFlexibleGraphiteSFB/260SFP/260PTFE≤425水蒸汽油品WaterSteamPetroleumPtoductsWC138CrMoAl25Cr2MoV≤450WC6≤540WC9≤570C5C12≤540ZGCr5Mo≤200硝酸类NitricacidZG1Cr18Ni9Ti1Cr18Ni9Ti≤200醋酸类AceticacidZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti法兰式截止阀规格主要尺寸和重量SizeMainDimensionsandWeight(mmkg)1.6MPaDNLDD1D2bn-φdHDo重量Weight凸面法兰RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I10130906040144-141981204.915130956545144-142181205.3201501057555144-142581407.0251601158565144-142751607.43218013510078164-182801808.34020014511085164-1833020012.650230160125100164-183502401465290180145120184-1840028022.780310195160135208-1835528029100350215180155208-1841532032.8125400245210185228-1846036079.5150480280240210248-23510400932006003352952652612-237104001792506224053553203012-257864504413006984604103753012-25925500646法兰式截止阀规格主要尺寸和重量SizeMainDimensionsandWeight(mmkg)2.5MPaDNLDD1D2bn-φdHDo重量Weight凸面法兰RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I10130906040164-141981204.915130956545164-142181205.3201501057555164-142581407.0251601158565164-142751607.43218013510078184-182801808.34020014511085184-1833020012.650230160125100208-183502401665290180145120228-184002802580310195160135228-2335528030100350230190160248-2541532034.8125400270220188288-2546036089.51504803002502183012-25510400992006003603102783412-257104001812506224253703323612-307864504453006984854303904016-30925500651法兰式截止阀规格主要尺寸和重量SizeMainDimensionsandWeight(mmkg)4.0MPaDNLDD1D2bn-φdHD0重量Weight凹凸法兰MFMJ41HJ41YJ41WJ41FJ41N4040P40R40I20)