400X水利控制閥介紹：

400XA流量控制(zhi)閥是一種用(yong)(yong)于消(xiao)防用(yong)(yong)水(shui)與生(sheng)(sheng)活(huo)(huo)用(yong)(yong)水(shui)并(bing)聯的供(gong)水(shui)系統中，用(yong)(yong)來調配(pei)供(gong)水(shui)方(fang)向的閥門。當(dang)火災發(fa)生(sheng)(sheng)時，消(xiao)防急需大量用(yong)(yong)水(shui)，立即(ji)切斷(duan)生(sheng)(sheng)活(huo)(huo)用(yong)(yong)水(shui)，確保(bao)足(zu)夠的消(xiao)防用(yong)(yong)水(shui);當(dang)消(xiao)防停止用(yong)(yong)水(shui)壓力減小時，閥門自動打開，呈常開狀(zhuang)態，恢復生(sheng)(sheng)活(huo)(huo)供(gong)水(shui)。

泄壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)主要(yao)用(yong)(yong)(yong)(yong)于消(xiao)防(fang)(fang)或(huo)(huo)其他供水(shui)(shui)系(xi)(xi)統(tong)(tong)中(zhong)，以(yi)(yi)防(fang)(fang)止(zhi)系(xi)(xi)統(tong)(tong)超壓(ya)(ya)(ya)(ya)或(huo)(huo)維(wei)持(chi)(chi)消(xiao)防(fang)(fang)供水(shui)(shui)系(xi)(xi)統(tong)(tong)的(de)壓(ya)(ya)(ya)(ya)力(li)(li)(li)。消(xiao)防(fang)(fang)泵關閉后還可(ke)(ke)(ke)以(yi)(yi)減小水(shui)(shui)錘(chui)的(de)沖擊。也(ye)用(yong)(yong)(yong)(yong)于大(da)(da)型供水(shui)(shui)系(xi)(xi)統(tong)(tong)的(de)水(shui)(shui)錘(chui)裝(zhuang)置(zhi)。并且閥(fa)(fa)(fa)門(men)控(kong)制系(xi)(xi)統(tong)(tong)的(de)進口處裝(zhuang)有一個清潔濾(lv)網，利(li)(li)用(yong)(yong)(yong)(yong)流體特(te)性(xing)，使比重較大(da)(da)、直徑(jing)較大(da)(da)的(de)懸浮顆粒不(bu)會進入控(kong)制系(xi)(xi)統(tong)(tong)，確保系(xi)(xi)統(tong)(tong)循環暢通無阻，使閥(fa)(fa)(fa)門(men)能(neng)安全可(ke)(ke)(ke)靠(kao)地(di)運行。系(xi)(xi)統(tong)(tong)動作(zuo)平穩、強度高、使用(yong)(yong)(yong)(yong)壽(shou)命長。主閥(fa)(fa)(fa)、泄壓(ya)(ya)(ya)(ya)/持(chi)(chi)壓(ya)(ya)(ya)(ya)導閥(fa)(fa)(fa)針閥(fa)(fa)(fa)、遙控(kong)浮球閥(fa)(fa)(fa)、微形(xing)過(guo)濾(lv)器和(he)壓(ya)(ya)(ya)(ya)力(li)(li)(li)表(biao)組成水(shui)(shui)力(li)(li)(li)控(kong)制接(jie)管(guan)系(xi)(xi)統(tong)(tong)。利(li)(li)用(yong)(yong)(yong)(yong)水(shui)(shui)力(li)(li)(li)自(zi)動操作(zuo)，即可(ke)(ke)(ke)以(yi)(yi)作(zuo)泄壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)用(yong)(yong)(yong)(yong)又可(ke)(ke)(ke)作(zuo)持(chi)(chi)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)用(yong)(yong)(yong)(yong)。作(zuo)泄壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)用(yong)(yong)(yong)(yong)時，可(ke)(ke)(ke)維(wei)持(chi)(chi)供水(shui)(shui)路壓(ya)(ya)(ya)(ya)力(li)(li)(li)在(zai)設(she)定(ding)的(de)安全值之下；做持(chi)(chi)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)用(yong)(yong)(yong)(yong)，可(ke)(ke)(ke)維(wei)持(chi)(chi)主閥(fa)(fa)(fa)上(shang)游水(shui)(shui)壓(ya)(ya)(ya)(ya)在(zai)設(she)定(ding)值之上(shang)，保持(chi)(chi)主閥(fa)(fa)(fa)上(shang)游供水(shui)(shui)壓(ya)(ya)(ya)(ya)力(li)(li)(li)。500X泄壓(ya)(ya)(ya)(ya)/持(chi)(chi)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)利(li)(li)用(yong)(yong)(yong)(yong)水(shui)(shui)力(li)(li)(li)自(zi)力(li)(li)(li)控(kong)制，不(bu)需要(yao)其它裝(zhuang)置(zhi)和(he)能(neng)源(yuan)，保養簡便(bian)，一閥(fa)(fa)(fa)多(duo)用(yong)(yong)(yong)(yong)。廣泛用(yong)(yong)(yong)(yong)于高層建筑、生活區等(deng)供水(shui)(shui)管(guan)網系(xi)(xi)統(tong)(tong)及城市供水(shui)(shui)工程。

400X水利控制閥特(te)性(xing);

1.可按設計或(huo)實際要(yao)求設定流(liu)量(liang)，避免了盲目調(diao)節，把復雜(za)的調(diao)網工(gong)作簡化為簡單的流(liu)量(liang)分配；

2.*克服系統冷(leng)熱不均現(xian)象提高供(gong)熱供(gong)冷(leng)品質；

3.減(jian)少設計工作量，不需要在管網進行(xing)繁(fan)瑣(suo)的(de)水力(li)平(ping)衡計算；

4.免除多(duo)熱源，管網熱源切換時的(de)流量再分(fen)配工作；

5.流量機芯轉(zhuan)子部分采用瑪(ma)瑙軸承耐磨不生(sheng)銹；

6.閥體上(shang)傳(chuan)訊器(qi)及傳(chuan)感器(qi)無(wu)電源，顯示(shi)器(qi)采用全密封結構使用壽命長(chang)；

7.不工作時自(zi)動休眠節省電源，設計使(shi)用(yong)壽(shou)命十年以上；

8.顯示器4秒鐘刷新一次，顯示平穩。

1、作泄(xie)(xie)壓(ya)(ya)閥(fa)(fa)(fa)：當泄(xie)(xie)壓(ya)(ya)/持壓(ya)(ya)導閥(fa)(fa)(fa)調整為泄(xie)(xie)壓(ya)(ya)狀態時(shi)(shi)，水(shui)通過(guo)針(zhen)閥(fa)(fa)(fa)、主(zhu)閥(fa)(fa)(fa)控(kong)制室、球(qiu)閥(fa)(fa)(fa)A、泄(xie)(xie)壓(ya)(ya)/持壓(ya)(ya)導閥(fa)(fa)(fa)、球(qiu)閥(fa)(fa)(fa)B流向出(chu)口(kou)，此(ci)時(shi)(shi)主(zhu)閥(fa)(fa)(fa)處于(yu)開啟狀態。當進口(kou)壓(ya)(ya)力(li)超過(guo)泄(xie)(xie)壓(ya)(ya)/持壓(ya)(ya)導閥(fa)(fa)(fa)設定(ding)的安全值(zhi)時(shi)(shi)，泄(xie)(xie)壓(ya)(ya)導閥(fa)(fa)(fa)會自動開啟，通過(guo)球(qiu)閥(fa)(fa)(fa)C放(fang)出(chu)部分水(shui)，使管路泄(xie)(xie)壓(ya)(ya)。當壓(ya)(ya)力(li)恢復(fu)到(dao)安全值(zhi)時(shi)(shi)，泄(xie)(xie)壓(ya)(ya)閥(fa)(fa)(fa)自動關閉。作泄(xie)(xie)壓(ya)(ya)閥(fa)(fa)(fa)時(shi)(shi)，各(ge)球(qiu)閥(fa)(fa)(fa)常開。

2、作(zuo)(zuo)持(chi)(chi)(chi)壓閥(fa)(fa)：當(dang)泄壓/持(chi)(chi)(chi)壓導(dao)(dao)閥(fa)(fa)調整為(wei)持(chi)(chi)(chi)壓狀態時，只要主閥(fa)(fa)進口水(shui)壓低(di)于導(dao)(dao)閥(fa)(fa)設(she)定(ding)值，導(dao)(dao)閥(fa)(fa)即關(guan)閉(bi)。主要控制(zhi)室(shi)升壓，主閥(fa)(fa)關(guan)閉(bi)。當(dang)主閥(fa)(fa)上(shang)游(you)供水(shui)壓力(li)超過(guo)導(dao)(dao)閥(fa)(fa)設(she)定(ding)壓力(li)時，持(chi)(chi)(chi)壓導(dao)(dao)閥(fa)(fa)才(cai)能打開(kai)(kai)，控制(zhi)室(shi)的水(shui)經球(qiu)閥(fa)(fa)排至出口，控制(zhi)室(shi)降壓主閥(fa)(fa)開(kai)(kai)啟，開(kai)(kai)始供水(shui)，即保(bao)持(chi)(chi)(chi)了上(shang)游(you)水(shui)壓。作(zuo)(zuo)持(chi)(chi)(chi)壓閥(fa)(fa)用(yong)時，球(qiu)閥(fa)(fa)C常(chang)閉(bi)或用(yong)絲堵換下。