400X流量控制阀结构特点和用途400X流量控制阀由主阀、流量调节阀、针阀、导阀、球阀、微形过滤器和压力表组成水力控制接管系统。利用水力自动操作，控制和调节主阀开度，使通过主阀的流量保持不变。本产品利用水力自力控制，不需要其它装置和能源，保养简便，流量控制稳定。本系列阀门产品广泛用于高层建筑、生活区等供水管网系统及城市供水工程。工作原理当阀门从进口端给水时，水流过针阀进入主阀控制室，并经过导阀、球阀流出主阀控制室到出口，此时主阀处于全开或浮动状态。调定主阀上部的流量调节阀，可为主阀设定一定开度。调节针阀开度和调节导阀弹簧压力，即可使主阀开度保持在设定开度，并在压力变化时导阀进行自动调节，保持流量不变。主要技术参数公称压(Mpa)壳体试验压力(MPa)密封试验压力(MPa)出口可调压力(MPa)压力特性△P2P1流量特性△P2P1适用介质介质温度(℃)1.01.51.10.09-0.8P2×8%P2×15%水0-801.62.41.760.10-1.2P2×10%P2×20%2.53.752.750.15-1.6P2×12%P2×25%主要零件材料零件名称零件材料阀体阀盖WCB阀座阀盘铜合金密封圈O型圈丁腈橡胶阀杆2Cr13弹簧50CrVA针型阀铜合金球阀铜合金浮球阀铜合金微型过滤器不锈钢部件列表：1、球阀2、导阀3、流量调节阀4、主阀5、压力表6、针阀连接尺寸DNLAA1HH1FDmmD1mmD2mmn-ΦdmmmmmmmmmmmmPN1.0PN1.6PN2.5PN1.0PN1.6PN2.5PN1.0PN1.6PN2.5PN1.0PN1.6PN2.5201802921363422471161051051057575755858564-13.54-13.54-14251802921363422471161151151158585856868654-13.54-13.54-14321802921363422471161401401401001001007878764-17.54-17.54-18402403301553952781701501501501101101108888844-17.54-17.54-1850240330155395278170165165165125125125102102994-17.54-17.54-18652503501654052981801851851851451451451221221184-17.54-17.58-18802853651754303132102002002001601601601331331328-17.58-17.58-181003604101955103502752202202351801801901581581568-17.58-17.58-221254004552205603653102502502702102102201841841848-17.58-17.58-261504554752305854203552852853002402402502122122118-228-228-262005855302556754504603403403602952953102682682748-2212-2212-2625065062330073047050039540542535035537032032033012-2212-2612-3030080070034076049058044546048540041043037037038912-2212-2616-3035086084041584052664050552055546047049043043044816-2216-2616-3340096088043091057071556558062051552555048248250316-2616-3016-364501075930460103061078061564067056558560053255054820-2620-3020-365001075980490113566583067071573062065066058558560920-2620-3320-3660012301060530127072592078084084572577077068568572020-3020-3620-3970016501130560146086598089591096084084087580080082024-3024-3624-42800175012506101640975105010151025108595095099090590592824-3324-3924-48安装示意图)