上海閥(fa)(fa)(fa)(fa)盛閥(fa)(fa)(fa)(fa)門(men)制造有限公司主要(yao)生產緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)，可提供緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)價(jia)格，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)說明(ming)書，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)實物圖(tu)，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)結構(gou)圖(tu)，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)外形尺寸，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)執行標準(zhun)，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)工作原(yuan)理，緊(jin)急(ji)關(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)作用特點。

緊(jin)(jin)急關(guan)閉(bi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)是由主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)、針(zhen)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)、導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)、壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表以及接管(guan)等(deng)其他管(guan)件組成(cheng)。是一(yi)(yi)種用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)消(xiao)(xiao)(xiao)防用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)與生(sheng)(sheng)(sheng)活用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)并聯(lian)的(de)供(gong)(gong)水(shui)(shui)(shui)系統中，用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)調配供(gong)(gong)水(shui)(shui)(shui)方向(xiang)(xiang)的(de)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)。當火災(zai)發生(sheng)(sheng)(sheng)時(shi)(shi)，消(xiao)(xiao)(xiao)防急需(xu)大(da)量用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)就，900X緊(jin)(jin)急關(guan)閉(bi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)立即切(qie)斷(duan)生(sheng)(sheng)(sheng)活用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)，確保足夠的(de)消(xiao)(xiao)(xiao)防用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)；當消(xiao)(xiao)(xiao)防停止用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)減小(xiao)時(shi)(shi)，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)自動打開(kai)，呈(cheng)常開(kai)狀態，恢復生(sheng)(sheng)(sheng)活供(gong)(gong)水(shui)(shui)(shui)。其工作原理是，當主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)進口壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)低于(yu)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)設(she)定的(de)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)時(shi)(shi)，導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)此時(shi)(shi)處(chu)于(yu)開(kai)通狀態，主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)上(shang)蓋腔內壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)與主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)出(chu)口壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)相等(deng)，進口與出(chu)口存在(zai)壓(ya)(ya)(ya)(ya)差，水(shui)(shui)(shui)流(liu)經(jing)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口由出(chu)口流(liu)出(chu)。當消(xiao)(xiao)(xiao)防泵其動，或變頻泵壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)升(sheng)高(gao)，超(chao)過導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)設(she)定壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)時(shi)(shi)，由主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)進口通向(xiang)(xiang)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)控制(zhi)管(guan)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)升(sheng)高(gao)，作用(yong)(yong)(yong)(yong)(yong)(yong)在(zai)彈簧上(shang)的(de)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)增大(da)，向(xiang)(xiang)下壓(ya)(ya)(ya)(ya)緊(jin)(jin)，帶動閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯下移，使導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)關(guan)閉(bi)，此時(shi)(shi)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)進口壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)通過節(jie)流(liu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)不斷(duan)補(bu)充到(dao)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)蓋上(shang)腔，因閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣受到(dao)的(de)向(xiang)(xiang)下的(de)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)大(da)于(yu)向(xiang)(xiang)上(shang)的(de)推力(li)(li)(li)(li)，主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)關(guan)閉(bi)。值得注意的(de)是，進口壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)小(xiao)于(yu)設(she)定壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)該(gai)(gai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)(yi)直(zhi)處(chu)于(yu)開(kai)啟狀態，進口壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)大(da)于(yu)設(she)定壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)，該(gai)(gai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)處(chu)于(yu)關(guan)閉(bi)狀態。該(gai)(gai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)使系統無須另(ling)設(she)專門(men)(men)的(de)消(xiao)(xiao)(xiao)防單(dan)(dan)獨供(gong)(gong)水(shui)(shui)(shui)管(guan)網，大(da)大(da)地節(jie)約了建設(she)成(cheng)本和(he)用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)量。該(gai)(gai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)控制(zhi)靈敏度(du)高(gao)，安全可(ke)靠，調試可(ke)簡單(dan)(dan)，使用(yong)(yong)(yong)(yong)(yong)(yong)壽(shou)命長，用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)生(sheng)(sheng)(sheng)活小(xiao)區(qu)中消(xiao)(xiao)(xiao)防用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)與生(sheng)(sheng)(sheng)活用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)并聯(lian)的(de)供(gong)(gong)水(shui)(shui)(shui)系統。

緊急關(guan)閉閥主(zhu)要零件材質如(ru)下表(biao)：

二、緊急關閉閥(fa)主要外形尺寸：