Bb Os & Y型结构制造标准：DIN3356结构长度：DIN3202法兰标准：DIN2543-2545对焊口标准：DIN3239试验标准：DIN3230?Bb Os & Y structureManufacture：DIN3356Face to face：DIN3202Flange：DIN2543-2545Butt-welding：DIN3239Test：DIN3230公称压力（nominal pressure）1.6Mpa2.5Mpa4.0Mpa密封试验（seal test）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（double walls bellow seal）维修方便（maintenance-free）波纹管密封阀杆（spindle with bellow seal）双重密封（secondary sealing）位置指示（position indicator）无升降手轮（non-rising handwheel）用途（selection of possible applications） ：工业（industry）电站（power station）废气净化厂（flue gas puerification plant）天然气（gas supply）真空装置（vacuum facilities）氨（ammonia）热水（hot water）冷冻系统（cllling&freezing systme）加热设备（heating technology）蒸汽系统（steam system）主要零部件材料：零件名称parta name阀体 body阀盖 bonnet阀杆 stem阀瓣 disc密封面sealing face填料 pakingGS-C25GS-C25GS-C2513Cr2Cr132Cr13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 external ａnd connection dimensions：PNDNLDD 1D 2BfHN-ф△H（STRODE）1.6151309565451621914-1462015010575581821914-1462516011585681821974-14832180140100781822004-18840200150110881832184-1813502301651251022032204-1813652901851451222032384-1816803102001601382032574-18201003502201801582033404-18251254002502101882233604-18321504802852402122233908-224020060034029526824353012-22502.5151309565451621914-1462015010575581821914-1462516011585681821974-14832180140100781822004-18840200150110881832184-1813502301651251022032204-1813652901801451222232384-1816803102001601382432574-18201003502351901622433408-22251254002702201882633608-26321504803002502182833908-264020060036031027830353012-26504.0151309565451621914-1462015010575581821914-1462516011585681821974-14832180140100781822004-18840200150110881832184-1813502301651251022032204-1813652901851451222232384-1816803102001601382432578-18201003502351901622433408-22251254002702201882633608-26321504803002502182833908-2640