法兰铸钢硬密封蝶阀D343H-25C法兰式双偏心金属硬密封蝶阀用途：主要适用于石油化工、冶炼、给排水蒸气、空气等腐蚀性及非腐蚀性介质管道线上，作调节和截流之用。特点：体积小、重量轻。结构简单、紧凑、采用偏心结构，楔紧原理，启用力短小，操作灵活。90°启闭迅速，流阻小，流量特性趋于直线。摩擦损失小，使用寿命长。更换维修方便。技术参数项目类别单位参数公称通径mm50~1200公称压力MPa2.5密封试验压力MPa2.4壳体试验压力MPa2.4适应介质温度温度等级≤200250300350压力等级2.5MPa2.52.52.4驱动方式手动电动气动法兰连接标准JB/T82.1-94验收标准GB/T13927蝶阀D343H-25C公称通径DN(mm)结构长度(标准值)外形尺寸(参考值)连接尺寸(标准值)参考重量D1343HLHBDd343HBDd643HBDd943HPN0.6MPaPN1.6MPa毫米mm短Brief长longH1A1B1H2A2B2H3A3B3DD1Z-dDD1Z-d·50108150112350180200625245725302502551401104-141651254-181765112170115370180200625245725302502551601304-141851454-182080114180120380180200645245725652502551901504-182001608-1823100127190138420180200675355926002502552101704-182201808-1825125140200164460180200715355926402502552402008-182502108-1840150140210175555270280800355927053003152652258-182852408-22472001522302007604004258502501707753003153202808-183402958-226025016525024383040042592525017094530031537533512-18369535012-22953001782702508954505601035)