进口缓闭式止回阀【进口止回阀***】德国奥莱斯
进口缓闭式止回阀【进口止回阀***】德国奥莱斯【进口缓闭式止回阀】详细说明:缓闭式止回阀由主阀、单向阀、针型阀、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,可使主阀得到佳的开启或关闭速度。防止水锺水击的产生,以达到缓闭消声的效果。利用水力自力控制,不需要其它装置和能源,***简便,开启及缓闭平稳。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。当阀门从进口端给水时,水通过微型过滤器、针型阀、单向阀进入主阀控制室,再经过球阀排水至下游。因为针型阀开度小于球阀开度,即主阀控制室的排水速度大于进水速度,因此控制室压力降低,作用于主阀盘下端的进口压力打开主阀向下游供水。当管道停止供水时,若下游水开始回流,一部分回流水经球阀进入主控制室,由于单向阀作用,回流水不能从主控制室流出,引起主控制室逐渐升压,缓缓关闭主阀。Slow-closingcheckvalvec***istsofmainvalve,one-wayvalve,needlevalve,ballvalve,micro-filterandpressuregauge.Byusinghydraulicautomaticoperation,themainvalvecanbeopenedorclosedatagoodspeed.Preventthewaterhammerofwaterclocks,soastoachievetheeffectofslowlyclosingandsilencing.Withhydraulicself-control,itdoesnotneedotherdevicesandenergy.Itiseasytomaintain,openandclose***oothly.Productsarewidelyusedinhigh-risebuildings,livingareasandotherwatersupplynetworksystemsandurbanwatersupplyprojects.Whenthevalvefeedswaterfromtheinletend,waterentersthemainvalvecontrolroomthroughmicrofilter,needlevalveandone-wayvalve,andthendrainsdownthroughtheballvalve.Becausetheneedlevalveopeningis***allerthantheballvalveopening,thatis,themainvalvecontrolchamberdrainagespeedisgreaterthanthewaterinletspeed,sothecontrolchamberpressurereduces,theinletpressureactingonthelowerendofthemainvalvediscopensthemainvalvedownstreamwatersupply.Whenthepipelinestopssupplyingwater,ifthedownstreamwaterbeginstoflowback,partofthebackflowwaterentersthemaincontrolroomthroughtheballvalve.Becauseofthefunctionofone-wayvalve,thebackflowwatercannotflowoutfromthemaincontrolroom,whichcausesthemaincontrolroomtograduallyincreasepressureandslowlyclosethemainvalve.【进口缓闭式止回阀】结构说明:该阀由主阀2、单向阀5、针阀1、球阀3与压力表4等组成。缓闭式逆止阀具有开启和关闭速度调控的逆止功能,阀门安装后能有效控制水泵在启动与停止运转时会自动调节到***佳开启与关闭的速度。适用于工矿企业,高层建筑由水泵直接给排水系统中,减小水锤及水击现象产生,以达到安全关闭的效果。【进口缓闭式止回阀】用途:微阻缓闭止回阀用于给排水管道,安装在水泵出口处用来防止介质逆流和消除***性水锤,并能有效地减少阀门关闭水锤压力,可保障管网安全运行。【进口缓闭式止回阀】技术参数:公称压力:1.0~2.5MPa公称通经:40~800mm适用介质:水、弱腐蚀性液体适用温度:0~80℃(如需要,可达200℃))
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