電動(dòng)鉻鉬鋼截止閥介紹

一、電動(dòng)鉻鉬鋼截止閥,，由截止閥與閥門電動(dòng)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(yùn)動(dòng),。閥桿的運(yùn)動(dòng)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(dòng),。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?yàn)樵擃愰y門的閥桿開(kāi)啟或關(guān)閉行程相對(duì)較短,，而且具有非常可靠的切斷功能,，又因?yàn)殚y座通口的變化與閥瓣的行程成正比例關(guān)系,，非常適合于對(duì)流量的調(diào)節(jié)。

二,、具有以下優(yōu)點(diǎn)：   

1． 流體阻力小,，其阻力系數(shù)與同長(zhǎng)度的管段相等。   

2． 結(jié)構(gòu)簡(jiǎn)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(kāi)閉迅速，從全開(kāi)到全關(guān)只要旋轉(zhuǎn)90°，便于遠(yuǎn)距離的控制,。   

5． 維修方便,，閘閥結(jié)構(gòu)簡(jiǎn)單，密封圈一般都是活動(dòng)的,，拆卸更換都比較方便,。   

6． 在全開(kāi)或全閉時(shí)，閘體和閥座的密封面與介質(zhì)隔離,，介質(zhì)通過(guò)時(shí),，不會(huì)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(yīng)用,。 球旋轉(zhuǎn)90度時(shí),，在進(jìn)、出口處應(yīng)全部呈現(xiàn)球面,，從而截?cái)嗔鲃?dòng),。

三、工作環(huán)境和主要技術(shù)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(duì)濕度：≤95%（25℃時(shí)）。

2.3 防護(hù)類型：戶外型用于無(wú)易燃,、易爆和無(wú)腐蝕性介質(zhì)的場(chǎng)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(jí)T1~T4組的爆炸性氣體混合物,。

2.4 防護(hù)等級(jí)：IP55（特殊訂貨IP65,、IP67）。

3 工作制：短時(shí)10分鐘（特殊訂貨30分鐘）,。

此類電動(dòng)截止閥型號(hào)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