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電動鉻鉬鋼截止閥介紹

一、電動鉻鉬鋼截止閥，由截止閥與閥門電動裝置組成，截止閥的啟閉件是塞形的閥瓣，閥瓣沿閥座的中心線作直線運動。閥桿的運動形式，也有升降旋轉(zhuǎn)桿式可用于控制水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等各種類型流體的流動。因此，這種類型的截流截止閥閥門非常適合作為切斷或調(diào)節(jié)以及節(jié)流用。因為該類閥門的閥桿開啟或關閉行程相對較短，而且具有非常可靠的切斷功能，又因為閥座通口的變化與閥瓣的行程成正比例關系，非常適合于對流量的調(diào)節(jié)。

二、具有以下優(yōu)點：   

1． 流體阻力小，其阻力系數(shù)與同長度的管段相等。   

2． 結構簡單、體積小、重量輕。   

3． 緊密可靠，目前閘閥的密封面材料廣泛使用塑料、密封性好，在真空系統(tǒng)中也已廣泛使用。   

4． 操作方便，開閉迅速，從全開到全關只要旋轉(zhuǎn)90°，便于遠距離的控制。   

5． 維修方便，閘閥結構簡單，密封圈一般都是活動的，拆卸更換都比較方便。   

6． 在全開或全閉時，閘體和閥座的密封面與介質(zhì)隔離，介質(zhì)通過時，不會引起閥門密封面的侵蝕。 

7． 適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應用。 球旋轉(zhuǎn)90度時，在進、出口處應全部呈現(xiàn)球面，從而截斷流動。

三、工作環(huán)境和主要技術參數(shù)

1 電源：常規(guī)，三相380V（50Hz）

        特殊，三相660V、415V（50Hz 、60Hz）；

        單相220V、110V（50Hz 、60Hz）

2 工作環(huán)境：

2.1 環(huán)境溫度：-20~+60℃ （特殊訂貨-40~+80℃）。

2.2 相對濕度：≤95%（25℃時）。

2.3 防護類型：戶外型用于無易燃、易爆和無腐蝕性介質(zhì)的場所。隔爆型產(chǎn)品有dⅠ和dⅡBT4兩種，dⅠ適用于煤礦非采掘工作面；dⅡBT4用于工廠，適用于環(huán)境為ⅡA、ⅡB級T1~T4組的爆炸性氣體混合物。

2.4 防護等級：IP55（特殊訂貨IP65、IP67）。

3 工作制：短時10分鐘（特殊訂貨30分鐘）。

此類電動截止閥型號有：

J941H-16I-DN15,J941H-16I-DN20,J941H-16I-DN25,J941H-16I-DN32,J941H-16I-DN40,J941H-16I-DN50,J941H-16I-DN65,J941H-16I-DN80,J941H-16I-DN100,J941H-16I-DN125,J941H-16I-DN150,J941H-16I-DN200,J941H-16I-DN250,J941H-16I-DN300,J941H-16I-DN350,J941H-16I-DN400,J941H-16I-DN450,J941H-16I-DN500

J941H-25I-DN15,J941H-25I-DN20,J941H-25I-DN25,J941H-25I-DN32,J941H-25I-DN40,J941H-25I-DN50,J941H-25I-DN65,J941H-25I-DN80,J941H-25I-DN100,J941H-25I-DN125,J941H-25I-DN150,J941H-25I-DN200,J941H-25I-DN250,J941H-25I-DN300,J941H-25I-DN350,J941H-25I-DN400,J941H-25I-DN450,J941H-25I-DN500

J941H-40I-DN15,J941H-40I-DN20,J941H-40I-DN25,J941H-40I-DN32,J941H-40I-DN40,J941H-40I-DN50,J941H-40I-DN65,J941H-40I-DN80,J941H-40I-DN100,J941H-40I-DN125,J941H-40I-DN150,J941H-40I-DN200,J941H-40I-DN250,J941H-40I-DN300,J941H-40I-DN350,J941H-40I-DN400,J941H-40I-DN450,J941H-40I-DN500

J941H-64I-DN15,J941H-64I-DN20,J941H-64I-DN25,J941H-64I-DN32,J941H-64I-DN40,J941H-64I-DN50,J941H-64I-DN65,J941H-64I-DN80,J941H-64I-DN100,J941H-64I-DN125,J941H-64I-DN150,J941H-64I-DN200,J941H-64I-DN250,J941H-64I-DN300,J941H-64I-DN350,J941H-64I-DN400,J941H-64I-DN450,J941H-64I-DN500

J941H-100I-DN15,J941H-100I-DN20,J941H-100I-DN25,J941H-100I-DN32,J941H-100I-DN40,J941H-100I-DN50,J941H-100I-DN65,J941H-100I-DN80,J941H-100I-DN100,J941H-100I-DN125,J941H-100I-DN150,J941H-100I-DN200,J941H-100I-DN250,J941H-100I-DN300

J941H-160I-DN15,J941H-160I-DN20,J941H-160I-DN25,J941H-160I-DN32,J941H-160I-DN40,J941H-160I-DN50,J941H-160I-DN65,J941H-160I-DN80,J941H-160I-DN100