概述；制造标准：GB12235结构长度：GB12221对焊口标准：GB12224试验标准：GB13927BbOs&YstructureManufacture：GB12235Facetoface：GB12221Butt-welding：GB12224Test：GB13927公称压力(nominalpressure)1.6Mpa2.5Mpa4.0Mpa密封试验(sealtest)1.8MPa2.8MPa4.4MPa壳体强度(shell)2.4MPa3.6MPa6.0MPa适用温度(suitabletemprature)300℃特点(features)：双层波纹管(doublewallsbellowseal)维修方便(maintenance-free)波纹管密封阀杆(spindlewithbellowseal)双重密封(secondarysealing)位置指示(positionindicator)无升降手轮(non-risinghandwheel)用途(selectionofpossibleapplicati***)：工业(industry)电站(powerstation)废气净化厂(fluegaspuerificationplant)***(gassupply)真空装置(vacuumfacilities)氨(ammonia)热水(hotwater)冷冻系统(cllling&freezingsystme)加热设备(heatingtechnology)蒸汽系统(steamsystem)零件名称partaname阀体body阀盖bonnet阀杆stem阀瓣disc密封面sealingface填料pakingWCBWCBWCB13Cr2Cr132Cr13柔性石墨GRAPHITESTL304CF8CF8304304304柔性石墨GRAPHITESTLPTFE316CF8MCF8M316316316柔性石墨GRAPHITESTLPTFE304LCF3CF3316304L304L柔性石墨GRAPHITESTLPTFE316LCF3MCF3M316316L316L柔性石墨GRAPHITESTLPTFE外形尺寸各连接尺寸externalandconnectiondimensi***：PNDNLL1DD1D2BfFD6N-ф△H(STRODE)1.61513080956545142--4-14620150901057555142--4-146251601101158565142--4-1483218012713510078162--4-1884020015614511085163--4-181350230170160125100163--4-181365290-180145120183--4-181680310-195160135203--8-1820100350-215180155203--8-1825125400-245210185223--8-1832150480-280240210243--8-2340200600-335295265263--12-23502.51513080956545162--4-14620150901057555162--4-146251601101158565162--4-1483218012713510078182--4-1884020015614511085183--4-181350230170160125100203--4-181365290-180145120223--8-181680310-195160135243--8-1820100350-230190160283--8-2325125400-270220188303--8-2532150480-300250218343--8-2540200600-360310278163--12-25504.015130809565451624404-146201509010575551624514-1462516011011585651624584-14832180127135100781824664-18840200156145110851834764-1813502301701601251002034884-181365290-18014512022341108-181680310-19516013522341218-1820100350-2301901602434.51508-2325125400-2702201882834.51768-2532150480-3002502183034.52048-2540)