【正文】 份資料平底式閘座傳統(tǒng)的閘閥通常是凹陷式調(diào)座，增大了流體阻力，且易堆積焊渣、石塊、泥沙等雜物，不利于密封和流面。閘板骨架采用球墨鑄鐵，整體包覆橡膠，具有幾何尺寸精確、包覆牢靠、不脫落、彈性記憶佳、可互換。由于本體改用球墨鑄鐵，此種情形已可大幅度減少?？蓮V泛用于自來水、污水、建筑、石油、化工、食品、醫(yī)藥、輕紡、電力、船舶、冶金、能源系統(tǒng)等流體管線上作為調(diào)節(jié)和截流裝置使用。精鑄閥體：閥體采用精密鑄造，精確的幾何尺寸使得閥體內(nèi)部無需任何精加工即可保證閥門的密封性。由于本體改用球墨鑄鐵，此種情形已可大幅度減少。23M20RVC(H)X025025033031935035540575022312231228M20M24RVC(H)X0300300356370400410460820412231228M20M24RVC(H)X035035038l429460470520980416231628M20M24RVC(H)X二、特點：結(jié)構(gòu)簡單、操縱靈活、重量輕、無卡阻、特別適用于各類固體物料和50mm左右塊狀、團(tuán)狀物料的輸送及流量調(diào)節(jié)，安裝不受角度限制，操作方便，能隨時調(diào)整尺度。二、執(zhí)行標(biāo)準(zhǔn)：設(shè)計與制造結(jié)構(gòu)長度法蘭尺寸壓力溫度試驗檢驗JB/T7749GB12221JB79Gb9131JB/T9092三、壓力試驗：公稱壓力PN強(qiáng)度試驗水密封試驗上密封試驗氣密封試驗四、主要零件材料及性能：體蓋板閥桿密封面墊片填料工作溫度適用介質(zhì)ZGoCrMNVAI低溫高壓鑄鋼1Cr7Ni12STL/STL1Cr13/柔性石墨低溫石棉PTFE浸聚四氟乙烯石棉繩柔性石墨46丙烷/炳烯甲醇/乙烷煤氣/液氨LCBZGoCrMNVAI低溫高壓鑄鋼60LC1ZGoCrMNVAI低溫高壓鑄鋼73LC2ZGoCrMNVAI低溫高壓鑄鋼1Cr18Ni9Ti101LC3ZGoCrMNVAI低溫高壓鑄鋼115LC4ZGoCrMNVAI低溫高壓鑄鋼196五、工洲牌國標(biāo)低溫法蘭閘閥規(guī)格主要尺寸( MPa)：DNLDD1D2bnΦdHD0凸面法法RFDZ40Y16LCBDZ40Y16LC1DZ40Y16LC2DZ40Y16LC3DZ40Y16LC4DZ40Y16PDZ40Y16R201501057555144Φ14320140251601158565144Φ143501603218013510078164Φ183851804020014511085164Φ1842022050250160125100164Φ1854024065265180145120184Φ1861024080280195160135208Φ18690280100300215180155208Φ18780300125325245210185228Φ18930320150350280240210248Φ239803502004003352952652612Φ2611804002504501053553203012Φ3013904503005004604103753012Φ3016205003505505204704353416Φ3418105004006005805254853616Φ361970550201501057555164Φ16320140凸面法法RFDZ40Y25LCBDZ40Y25LC1DZ40Y25LC2DZ40Y25LC3DZ40Y25LC4DZ40Y25PDZ40Y25R251601158565164Φ163501603218013510078184Φ183851804020014511085184Φ1842020050250160125100204Φ2054024065265180145125228Φ2251024080280195160135228Φ22690280100300230190160248Φ24780300125325270220188288Φ28930300150350300250218308Φ309803202004003603102783412Φ34。二、執(zhí)行標(biāo)準(zhǔn):設(shè)計與制造結(jié)構(gòu)長度法蘭尺寸壓力溫度試驗檢驗GB12234GB12221GB9113 JB79GB9131GB/T13927 HB/T9092三、壓力試驗：公稱壓力強(qiáng)度試驗水密封試驗上密封試驗氣密封試驗四、主要零件材料及性能：體蓋板閥桿密封面墊片填料工作溫度℃適用介質(zhì)WCB2Cr1313CrSTL本體材料尼龍增強(qiáng)柔性石墨1Cr13/柔性石墨OS軟鋼0Cr18Ni9Ti0Cr17Ni12Mo2TiXD550F（T）PTFE柔性石墨增強(qiáng)柔性石墨SFB/260SFP/260PTFE≤425水、蒸汽、油品WC138GrMoA125Cr2MoV≤450WC6≤540WC9≤570ZGCr5Mo≤540ZG1Cr18Ni9Ti1Cr18Ni9Ti≤200ZG1Cr18Ni12Mo2Ti1C18Ni12Mo2Ti≤200五、工洲牌國標(biāo)法蘭閘閥規(guī)格主要尺寸：DNLdD1D2bnΦdHD0凸面法法RFZ40HZ40YZ40WZ40FZ40NZ41HZ41YZ41FZ41N16C16P16R16I15130956545144Φ14170120201501057555144Φ14190140251601158565144Φ142051603218013510078164Φ182701804020014511085164Φ1831020050250160125100164Φ1835824065265180145120184Φ1837324080280195160135208Φ1843528010030025180155208Φ18500300125325245210185228Φ18614320150350280240210248Φ236743202004003352952652612Φ238184002504504053553203012Φ259694503005004604103753012Φ2511455003505505204704353416Φ2512805004006005805254853616Φ30148525604506506405855454020Φ3015416005007007056506084420Φ3416766406008008407707184820Φ4118747207009009108407885024Φ412083800800100010209508985224Φ4124009509001100112010509986428Φ4129501000100012001255117011105628Φ4832451000PN 六、工洲牌國標(biāo)法蘭閘閥規(guī)格主要尺寸：/, TBODYDNLDD1D2bnΦdHDO凸面法法RFZ40HZ40YZ40WZ40FZ40NZ41HZ41YZ41FZ41N25C25P25R25I15130956545164Φ14172120201501057555164Φ14191140251601158565164Φ142051603218013510078184Φ182701804020014511085184Φ1830020050250160125100204Φ1835724065265180145120228Φ1837624080280195160135228Φ18434280100300230190160248Φ23502300125325270220188288Φ205613320150350300250218308Φ256753202004003603102783412Φ258194002504504253703323612Φ309684503005004854303904016Φ3011445003505505504904484416Φ3412805004006006105505054816Φ3414515604506506606005555020Φ3415426005007007306605105220Φ4116786406008008407707185620Φ4118757207009009558758156024Φ282082800800100010709909306424Φ28240395090011001180109010256628Φ5429521000100012001305121011406828Φ5832441000七、～ MPa規(guī)格主要尺寸：DNLDD1D2D6bnΦdHD0凹面法法MFMZ40HZ40YZ40WZ40FZ40NZ41HZ41YZ41FZ41N4040P40R40I1513095654540164Φ1413412020150105755551164Φ1418814025160115856458164Φ14206140321801351007866184Φ18272180402001451108576184Φ183221805025016012510088204Φ1837024065280180145120110228Φ18394280803