SD343H伸缩硬密封蝶阀用途及特点：伸缩蝶阀适用于温度≤80℃，公称压力≤1.6MPa的石油、食品、电力、轻纺、医药、化工、造纸等给排水、气体管道上作调节流量和截流介质的作用，具有补偿管道热胀冷缩的功能。SD343H伸缩硬密封蝶阀采用标准：设计标准:GB/T12238-1989法兰连接尺寸:GB/T9113.1-2000;GB/T9113.2-2000GB/T9115.1-2000;GB/T9115.2-2000压力试验:GB/T13927-1992;JB/T9092-1999SD343H伸缩硬密封蝶阀其主要特点如下：伸缩蝶阀除了能作调节和截流作用、补偿管道温差所产生的热胀冷缩功能外，还能为安装更换、维修阀门提供方便。设计新颖、合理、结构独特、重量轻、操作方便、启闭迅速。密封部位可调节更换、密封性能可靠等特点。SD343H伸缩硬密封蝶阀主要零件的材质：零件名称材料阀体铸铁、铸钢、不锈钢、铬钼钢、合金钢蝶板铸钢、合金钢、不锈钢、铬钼钢密封圈橡胶、聚四氟、聚内脂、不锈钢阀杆2Cr13、不锈钢、铬钼钢伸缩管铸铁、铸钢、不锈钢、铬钼钢填料柔性石墨SD343H伸缩硬密封蝶阀主要技术参数：公称通径DN（mm）50～2000公称压力PN（MPa）0.61.01.6试验压力强度试验0.91.52.4密封试验0.661.11.76气密封试验0.60.60.6适用温度≤80℃适用介质空气、水、蒸气、煤气、油品等。驱动形式手动、蜗杆蜗轮传动、气传动、电传动。SD343H伸缩硬密封蝶阀主要尺寸：公称通径外形尺寸(参考值)法兰尺寸和螺栓孔尺寸(标准值)HH1设计***大长度设计***小长度设计长度AB0.6MPa1.0MPa1.6MPa毫米DD1D2n-dDD1D2n-dDD1D2n-d5080309186156171180200140110884-14165125994-18165125994-1865953371901601751802001601301084-141851451184-181851451184-1880983471981661821802001901501244-182001601328-182001601328-181001143732281882081802002101701444-182201801568-182201801568-181251284052402012201802002402001748-182502101848-182502101848-181501394402462062262702802652251998-182852402118-222852402118-222001746122652192424004253202802548-183402952668-2234029526612-2225021569329524026740042537533530912-1839535031912-2240535531912-2630024574730825428245056044039536312-2244540037012-2246041037012-2635027080232727230045056049044541312-2250546042916-2252047042916-2640030599136830833853558054049546316-2256551548016-2658052548016-30450325103737031034053558059555051816-2261556553020-2664058554820-30500360112739233236253558064560056820-2267062058220-2671565060920-33600445137744137540857066075570566720-2678072568220-3084077072020-36700505149646040043075055086081077224-2689584079424-3091084079424-36800560158449944547575055097592087824-30101595090124-33102595090124-3990063016765204604907505501075102097824-3011151050100128-3311251050100128-391000680176060053056590075011751120107828-3012301160111228-3612551170111228-4212007952018675571623100092514051340129532-3314551380132832-3914851390132832-4814009002363760683722100092516301560151036-3616751590153036-4216851590153036-48160011002723860770815100092518301760171040-3619151820175040-4819301820175040-56180011242844930830880110098020451970171844-3921152020195044-4821302020195044-562000129231271020920970110098022652180212548-4223252230215048-4823452230215048-62伸缩蝶阀安装使用注意事项：伸缩蝶阀出厂时结构长度为***小长度，安装时，拉至安装长度（即设计长度）。伸缩蝶阀在安装前必须平放，切勿随意磕碰。伸缩蝶阀可在任意安装，做温度补偿用时，在管道安装完成后，需沿管道轴线方向两端加支架，防止伸缩阀伸缩管拉出，支架的支承力按下列公式计算，运行时严禁将支架卸掉。当管道间长度超过伸缩阀安装长度时，请调整管道间隔，切勿强行拉伸缩阀，以免损坏伸缩阀。)