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900X緊急關(guan)閉閥是(shi)一種用(yong)(yong)于消(xiao)防(fang)用(yong)(yong)水(shui)(shui)與生(sheng)活用(yong)(yong)水(shui)(shui)并聯的(de)供(gong)水(shui)(shui)系統中(zhong)，用(yong)(yong)來調(diao)配(pei)供(gong)水(shui)(shui)方向(xiang)的(de)閥門(men)。當火災發(fa)生(sheng)時，消(xiao)防(fang)急需大(da)量(liang)用(yong)(yong)水(shui)(shui)，立即(ji)切斷生(sheng)活用(yong)(yong)水(shui)(shui)，確保足夠的(de)消(xiao)防(fang)用(yong)(yong)水(shui)(shui)；當消(xiao)防(fang)停止(zhi)用(yong)(yong)水(shui)(shui)壓力減小(xiao)時，閥門(men)自動打開，呈常開狀態，恢復(fu)生(sheng)活供(gong)水(shui)(shui)。該閥使系統無(wu)須另設(she)(she)專門(men)的(de)消(xiao)防(fang)單獨(du)供(gong)水(shui)(shui)管網，大(da)大(da)地節約了(le)建設(she)(she)成本和用(yong)(yong)水(shui)(shui)量(liang)。閥門(men)控制(zhi)靈敏度高，安全可靠(kao)，調(diao)試簡便，使用(yong)(yong)壽命長。