概述：主要技术参数 公称通经DN（mm）50～2000公称药理PN（MPa）0.61.01.62.5密封试验（MPa）0.661.11.762.75强度试验（MPa）0.91.52.43.75适用温度碳钢：-29℃～425℃ 不锈钢：-40℃～650℃适用介质水、空气、天然气、油品及弱腐蚀性流体泄漏率符合GB/T13927-92标准驱动方式蜗轮传动、电动、气动、液动主要零部件材料 零件名称材料阀体WCB、合金钢、不锈钢、QT450-10蝶板WCB、合金钢、不锈钢、QT450-10阀轴2Cr13不锈钢、合金钢密封圈不锈钢圈填料柔性石墨执行标准 制造标准JB/T 8527-97法兰标准GB9113-2000结构长度标准GB12221-89检验标准GB/T 13927-92?主要连接尺寸:公称通径结构长度（标准值）外形尺寸（参考值）连接尺寸（标准值）参考重量D343H（kg）LHDd343HDd643HDd943HPN1.6MPaPN2.5MPa毫米英寸短长H1A1B1H2A2B2H3A3B3DD1Z-dDD1Z-d502108150112350180200625245725302502551651254-181651254-18196521/2112170115370180200625245725302502551851454-181851458-1822803114180120380180200645245725652502552001608-182001608-18251004127190138420180200675355926002502552201808-182351908-22281255140200164460180200715355926402502552502108-182702208-26431506140210175555270280800355927053003152852408-223002508-2650200815223020076040042585025017077530031534029512-2236031012-26642501016525024383040042592525017094530031540535512-2642537012-3099300121782702508954505601035450220107030031546041012-2648543016-30130350141902902809504505601070450220114030031552047016-2655549016-331884001621631030511905355801190450220121030031558052516-3062055016-362704501822233035012555355801250650280133557571464058520-3067060020-363505002022935038013055355801290650280141557571471565020-3373066020-363756002426739044513405706601455850380160565681084077020-3684577020-395607002829243048015207505501585850380184465681091084024-3696087524-42610800323184705301710750550170012503802040656810102595024-39108599024-488809003633051058018107505501865125038022557858631125105028-391185109028-48110010004041055065019609007502015125038023807858631255117028-421320121028-561600120048470630760225010009252250125038026407858631485139032-481530142032-56215014005653071085024351000925???2886??1685159036-481755164036-623200160064600790103027801000925???3156??1930182040-561975186040-625000180072670870123030201100980???3421??2130202044-562195207044-706900200080760950135032701100980???3685??2345223048-622425230048-709100