參數：
公稱通徑：DN40-DN400
公稱壓力：1.6MPa
適用介質：水
適用溫度：0-70℃
閥體材質：鑄鐵、鑄鋼(gang)、不銹鋼(gang)

QSP全壓高速排氣閥是國內目前的氣缸式排氣閥，在結構性能上*超越了普通高速（雙口）排氣閥和復合式雙口排氣閥，對于管道中的氣體，無論是多段水柱，氣柱相間，有壓無壓均可連續高速排出管道，浮球不頂在排氣口上，不存在卡壞問題，是一款氣缸式排氣閥，在結構上超過了普通雙口排氣閥和復合式排氣閥，對于管道中的氣體，無論時多段水柱，氣柱相間，有無壓力均可連續高速排出管道，不會發生浮球吹堵，少量氣體可通過微孔排出，管道負壓時大量進氣。QSP全壓高速排氣閥通(tong)(tong)過(guo)(guo)銷軸(zhou)與浮筒(tong)(tong)連接的浮筒(tong)(tong)桿可(ke)繞主(zhu)軸(zhou)轉動(dong)，并(bing)由(you)此實(shi)現通(tong)(tong)過(guo)(guo)浮筒(tong)(tong)升(sheng)(sheng)(sheng)降控制閥(fa)(fa)芯(xin)的升(sheng)(sheng)(sheng)降啟閉，即(ji)當(dang)(dang)浮筒(tong)(tong)下降時，閥(fa)(fa)芯(xin)上(shang)升(sheng)(sheng)(sheng)，打開小閥(fa)(fa)口，并(bing)可(ke)關(guan)閉小排(pai)氣(qi)(qi)閥(fa)(fa)的上(shang)的排(pai)氣(qi)(qi)口，使(shi)氣(qi)(qi)體通(tong)(tong)過(guo)(guo)導管(guan)(guan)(guan)(guan)進入(ru)液壓(ya)(ya)(ya)缸(gang)內，當(dang)(dang)浮筒(tong)(tong)在浮力作用下上(shang)升(sheng)(sheng)(sheng)時候，閥(fa)(fa)芯(xin)下降，關(guan)閉小閥(fa)(fa)口，使(shi)液壓(ya)(ya)(ya)缸(gang)通(tong)(tong)過(guo)(guo)導管(guan)(guan)(guan)(guan)，直通(tong)(tong)大(da)氣(qi)(qi)泄壓(ya)(ya)(ya)，且當(dang)(dang)浮筒(tong)(tong)下降，液壓(ya)(ya)(ya)缸(gang)內充(chong)滿氣(qi)(qi)體時，閥(fa)(fa)門上(shang)的大(da)排(pai)氣(qi)(qi)口自動(dong)關(guan)閉。少(shao)(shao)量氣(qi)(qi)體可(ke)通(tong)(tong)過(guo)(guo)微孔排(pai)出(chu)(chu)，管(guan)(guan)(guan)(guan)道(dao)出(chu)(chu)現負壓(ya)(ya)(ya)時可(ke)注(zhu)氣(qi)(qi)，防氣(qi)(qi)染(ran)并(bing)緩沖水錘升(sheng)(sheng)(sheng)壓(ya)(ya)(ya)，解除(chu)新建管(guan)(guan)(guan)(guan)路(lu)試車之險(xian)，排(pai)氣(qi)(qi)之難(nan)，減(jian)少(shao)(shao)城市管(guan)(guan)(guan)(guan)網爆管(guan)(guan)(guan)(guan)事故(gu)，減(jian)阻節能，減(jian)少(shao)(shao)壓(ya)(ya)(ya)力震蕩(dang)，提高整個供水系統及各(ge)種設備的安全可(ke)靠性。