特点KVD643F/H型气动法兰式蝶阀结构简单,操作方便,重量轻,口径大,流通能力大等优点,且具有自清洗功能。适用于悬浮颗粒的流体及浓、浊浆头流体的调节,广泛应用于石油、化工、电站、轻纺、造纸等行业生产过程的自动化调节和远程控制中,用于控制液位、流量、压力等工艺参数 　安装尺寸　性能参数<!--
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-->公称通径mm508010012515020025030035040045050060070080090010001200额定流量系数Kv852203405307701360213030604160545069008500122001660021700275403400043200公称压力MPa0.6, 1.0, 1.6转角范围90°信号压力KPa20～100流量特性近似等百分比介质温度℃-20℃～+200℃(常温), -29℃～+425℃(中温), -40℃～+570℃(高温)接管法兰按JB78对夹式法兰连接信号连接螺孔M16×1.5阀体材质WCB(ZG230-450), ICr18Ni9, ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti活塞式执行机构主要技术参数型号活塞直径有效面积cm2最大行程mm最大操作压力KPa最大输出力NZCS-452504846050021800性能指标执行机构薄膜式执行机构活塞式执行机构类别不带定位器带定位器带定位器弹簧范围KPa20～100  40～20020～60  60～100项目基本误差%8-±2.5±2.5回差%6-≤2.5≤2.5死区%5-≤1.0≤1.0始终点偏差%气开始点4.04.0±2.5±2.5终点88气差始点88终点4.04.0额定转角偏差%4.04.0≤+2.5≤+2.5允许泄漏量L/h2×10-2×阀的额定容量允许压差配用执行机构型号ZMA-2ZMA-3ZMA-4ZMA-5ZMA-45公称通径mm502.2(5.0)0.097(0.22)652.2(5.0)0.097(0.22)800.87(1.965)0.038(0.086)1000.0556(1.257)0.0196(0.0445)1250.638(1.345)0.0250(0.0542)1500.444(0.935)0.015(0.0314)2000.185(0.407)0.00587(0.0129)2500.331(0.685)0.00845(0.0175)3000.181(0.385)0.00461(0.00983)3500.133(0.284)0.00292(0.00622)4000.216(0.45)0.00485(0.0101)4500.171(0.356)0.00341(0.0071)5000.139(0.289)0.0025(0.0052)6000.970.0197000.710.01198000.4420.007959000.3390.0059910000.2360.0040312000.1640.0027注：括号内数值为带定位器允许压差。外形尺寸公称通径DN结构长度(标准值)外形尺寸( 参考值)连接尺寸(标准值)LHD643HPN0.6MPaPN1.0MPa毫米英寸短长H2A2B2DD1Z-dDD2Z-d502108150100625245721401104--141651254--186521/2112170115625245721601304--141851454--18803114180120645245721901504--182001608-181004127190130675355922101704--182201808-181255140200150715355922402008-182502108-181506140210170800355922652258-182852408-2220081522302008502501703202808-183402958-222501016525023592525017037533512-1839535012-2230012178270300103545022044039512-2244540012-2235014190290325107045022049044516-2250546016-2240016216310355119045022054049516-2256551516-2645018222330390125065028059555020-2261556520-2650020229350420129065028064560020-2667062020-2660024267390490145585038075570524--2678072520-3070028292430550158585038086081024--3089584024--30800323184706401700125038097592024--30101595024--3390036330510710186512503801075102024--301115105028-33100040410550770201515005801175112028--301230116028-36120048470630890222615005801405134032-331450138032-39订货须知订货时请填写《规格书》或注明以下内容：①产品型号②公称通径DN,额定流量系数Kv③信号压力,弹簧范围④流量特性⑤阀前、后压力⑥流体介质种类⑦介质工作温度范围⑧阀体、阀板的材质⑨是否带手轮机构及定位器说明型号⑩是否有其它特殊要求