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1、截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運(yùn)動(dòng)。閥桿的運(yùn)動(dòng)形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上）。截止閥只適用于全開和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。執(zhí)行標(biāo)準(zhǔn)AdministerStandard設(shè)計(jì)與制造DesignandManufacture結(jié)構(gòu)長度FaceToFace法蘭尺寸FlangeDimension壓力-溫度PressureTemperatureLating試驗(yàn)-檢驗(yàn)InspectionAndTestGB12
2、2235GB12221GB9113JB79GB9131GB/T13927JB/T9092壓力試驗(yàn)PressureTest公稱壓力NominalPressure1.62.54.06.410.016.0強(qiáng)度試驗(yàn)ShellTest2.43.86.09.615.024.0水密封試驗(yàn)WaterSealTest1.82.84.47.011.018.0上密封試驗(yàn)BackseatTest1.82.84.47.011.018.0氣密封試驗(yàn)AirSealTest0.5-0.7主要零件材料及性能MainPartMateria
3、lsandProperty體、蓋、板BodyCoverDisc閥桿Stem密封面SealingFace墊片Sealing Shim填料Packing工作溫度℃WorkingTemperature適用介質(zhì)SuitableMediumWCB2Cr1313CrSTL木體材料WithBodyMaterial尼龍Nylon增強(qiáng)柔性石墨EnhancedFlexibleGraphite13Cr/柔性石墨1Cr13/FlexibleGraphite08軟鋼08SoftSteal0Cr18Ni9Ti0Cr17Ni12Mo
4、2TiXD550F(T)PTFE柔性石墨增強(qiáng)柔性石墨FlexibleGraphiteEnhancedFlexibleGraphiteSFB/260SFP/260PTFE ≤425水蒸汽油品WaterSteamPetroleumPtoductsWC138CrMoAl25Cr2MoV≤450WC6≤540WC9≤570C5C12≤540ZGCr5Mo≤200硝酸類NitricacidZG1Cr18Ni9Ti1Cr18Ni9Ti≤200醋酸類AceticacidZG1Cr18Ni12Mo2Ti1Cr18Ni
5、12Mo2Ti規(guī)格主要尺寸和重量SizeMainDimensionsandWeight(mmkg)1.6MPaDNLDD1D2bn-φdHDo重量Weight凸面10130906040144-141981204.9法蘭RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I15130956545144-142181205.3201501057555144-142581407.0251601158565144-142751607.43218013510078164-182801808.3402
6、0014511085164-1833020012.650230160125100164-183502401465290180145120184-1840028022.780310195160135208-1835528029100350215180155208-1841532032.8125400245210185228-1846036079.5150480280240210248-23510400932006003352952652612-237104001792506224053553203012-
7、257864504413006984604103753012-25925500646規(guī)格主要尺寸和重量SizeMainDimensionsandWeight(mmkg)2.5MPaDNLDD1D2bn-φdHDo重量Weight凸面法蘭RFJ41HJ41YJ41WJ41FJ41N16C16P16R16I10130906040164-141981204.915130956545164-142181205.3201501057555164-142581407.0251601158565164-1427516
8、07.43218013510078184-182801808.34020014511085184-1833020012.650230160125100208-183502401665290180145120228-184002802580310195160135228-2335528030100350230190160248-2541532034.8125400270220188288-2546036089.5150480300250218
