材质铸钢品牌西博思型号400X连接形式法兰规格DN40-DN800介质温度80（℃）简单描述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，***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。详细介绍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***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连接尺寸DNLAA1HH1FDmmD1mmD2mmn-ΦdmmmmmmmmmmmmPN1.0PN2.5PN1.0PN2.5PN1.0PN2.5PN1.0PN2.520180262130212179116105105757558564-13.54-1425180262130212179116115115858568654-13.54-143218026213021217911614014010010078764-17.54-184024028013926521017015015011011088844-17.54-1850240280139265210170165165125125102994-17.54-18652502841413102151801851851451451221184-17.58-18802852921453502452102002001601601331328-17.58-181003603301644603052752202351801901581568-17.58-221254003401695203653102502702102201841848-17.58-261504553501745704153552853002402502122118-228-262005853921956955104603403602953102682748-2212-2625065044222078056050039542535037032033012-2212-3030080047223590565858044548540043037038912-2216-30350860532265102569664050555546049043044816-2216-33400960582290108073571556562051555048250316-2616-364501075632320103061078061567056560053254820-2620-365001075682350113566583067073062066058560920-2620-366001230762390127072592078084572577068572020-3020-397001650832420146086598089596084087580082024-3024-428001750932470164097510501015108596099090592824-3324-48)