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調節閥系列

FPD21系列電動單座調節閥

商品介紹
規格參數

FPD21系列電動單座調節閥
基本介紹
FPD21系列電(dian)動單(dan)(dan)(dan)座(zuo)調(diao)節(jie)閥(fa)(fa),由電(dian)子式一體化直行程(cheng)電(dian)動執(zhi)行機(ji)構(gou)和低流(liu)阻(zu)直通單(dan)(dan)(dan)座(zuo)閥(fa)(fa)組成(cheng)。(電(dian)動執(zhi)行機(ji)構(gou)內(nei)有伺服(fu)放大器,通過控制信號(4-20mADC或1-5VDC)及(ji)電(dian)源即(ji)可控制閥(fa)(fa)門開度,達(da)到對壓力(li)、流(liu)量(liang)、液(ye)位、溫(wen)度等工藝參數的調(diao)節(jie)。具有動作靈敏、連(lian)線簡單(dan)(dan)(dan)、流(liu)量(liang)大、體積小、調(diao)節(jie)精度高等特點。
產(chan)品有(you)標準型(xing)、調節切斷型(xing)、波(bo)紋管密封型(xing)、夾(jia)套(tao)保(bao)溫型(xing)等(deng)多種(zhong)(zhong)品種(zhong)(zhong)。適用液(ye)體溫度由-200℃至+560℃范圍(wei)內多種(zhong)(zhong)檔次。
  單座(zuo)調(diao)節(jie)閥的(de)閥芯采用上(shang)導向結(jie)構，通道(dao)呈(cheng)S型。有降壓小，流量(liang)小，流量(liang)大，可調(diao)范圍廣，流量(liang)特(te)(te)性精度高的(de)特(te)(te)點。出廠時(shi)已經將零(ling)點量(liang)程調(diao)試完畢，用戶接通氣源輸(shu)入信號(hao)即(ji)可運轉使(shi)用。

單座閥適用于對泄露量求嚴格、閥前后壓差低及有一定粘度的場合。具有密封性好、泄漏量小的優點，但由于閥芯軸向不平衡力較大，故不宜使用于工作壓差較大的場合。廣泛應用于電力、冶金、化工、石油、環保、輕工、設備等行業。
閥體、閥蓋：HT200，ZG230-450，ZG1Cr18Ni9Ti
閥芯、閥座：1Cr18Ni9Ti，司太萊合金堆焊
軟密封閥芯：增強聚四氟乙烯
填料：聚四氟乙烯，柔性石墨
波紋管：1Cr18Ni9Ti
墊片：橡(xiang)膠石棉板、10、1Cr18Ni9Ti、石棉纏繞墊片

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