新系列活塞式气动闸阀（以下简称闸阀），由于具有优良的切断性能，故在工业领域得到广泛应用。公称压力有1.6、6.4MPa，口径由40至600mm，温度范围为-196℃至500℃。【特点】●闸阀的执行机构具有正、反两种作用功能，故阀的开、关方式有气开、气关两种作用方式。闸阀采用金属接触式独特结构、动作可靠，具有极高的切断性能，比常规的切断阀优越。允许泄漏量达到10-8×KV。使用范围广，温度可由-196℃至500℃，口径小至40mm，大至600mm.阀座有平行、60°V型切口和90°V型切口三种，适应不同使用场合需要。●阀体可用夹套形式保温，用以介质冷却后易堵塞，凝结或结焦场合使用。【产品图】【Z641型气动闸阀外形尺寸及重量】DNPNLHhACG(kg)40PN1625067525512020029PN643150PN1625068525512020032PN644080PN1628080034012020042PN6431016024052100PN16300【Z641型气动闸阀选用材料】阀体、阀盖阀杆阀板闸板密封圈活塞气缸垫料ZG230-4501Cr18Ni9Ti1Cr18Ni9Ti堆焊司太莱合金1Cr18Ni9Ti堆焊司太莱合金耐油O型橡胶铸铝合金无缝钢管聚四氟乙烯，柔性石墨【Z641型气动闸阀连接尺寸参数】DNPNLHhACG(kg)40PN1625067525512020029PN643150PN1625068525512020032PN644080PN1628080034012020042PN6431016024052100PN1630085037012020080PN6435016024090125PN16325102041512020095PN64400160240105150PN163501085455160240110PN64450280360130200PN164001195515160240215PN64500280360275250PN164501460580160240320PN64550280360380300PN165001575645280360440PN64600360500350PN165501890810280360520PN64650360440580400PN166002070900360440850PN64700420500910450PN166502350975360440890PN647504205001000500PN1670025001073360440950PN648005406201200600PN16750293013023604401100PN648505406201300【Z641型气动闸阀允许压差】DN(mm)P(MPa)D(m)4050801001251502002503003504004505006001200.31.951.180.43.082.030.51.062.881600.31.350.930.630.42.041.460.990.52.041.991.352800.31.651.020.670.42.041.501.000.52.041.961.143600.30.770.570.41.130.870.51.200.924200.30.650.500.40.970.750.51.291.005400.30.740.490.41.090.740.51.440.98【Z641型气动闸阀主要技术参数】公称通径DN(mm)405080100125150200250300350400450500600额定流量系数KV170270510940140022003500850096001300017000550002700038000公称压力PN(MPa)1.66.4活塞直径D(mm)120160280360420540操作压力P(MPa)0.3~0.5介质温度t(℃)标准：-20~250高温：250~500低温：-196~-20允许泄漏量10-8×KV流量特性近似直线动作方式继续、连续（配阀门定位器）更多华天产品欢迎进入上海华天机电设备公司主页或来电咨询021-60402001)