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三偏心氣動蝶閥

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更新時間：2018-05-02 13:28:05瀏覽次數(shù)：584次

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產品簡介

三偏心氣動蝶閥采用精密的J形彈性密封圈和三偏心多層次金屬硬密封結構，被廣泛用于介質溫度≤425℃的治金 、電力、石油化工、以及給排水和市政建設等工業(yè)管道上，作調節(jié)流量和載斷流體使用。

詳細介紹

 三偏心氣動蝶閥的概述:

    本閥采用三偏心密封結構，閥座與蝶板幾乎無磨損，具有越觀越緊的密封功能。2、密封圈選用不銹鋼制作，具有金屬硬密封和彈性密封的雙重優(yōu)點，無論在低溫和高溫的情況下，均具有優(yōu)良的密封性能,具有耐腐蝕,使用壽命長等特點。3、碟板密封面采用堆焊鈷基硬質合金，密封面耐磨損，使用壽命長．4、大規(guī)格蝶板采用絎架結構，強度高，過流面積大，流阻小。5、本閥具有雙向密封功能，安裝時不受介質流向的限制，也不受空間位置的影響，可在任何方向安裝。6、驅動裝置可以多工位（旋轉90°或180°）安裝，便于用戶使用。

三偏心氣動蝶閥主要技術參數(shù)：

公稱通經(jīng)DN（mm）

50～2000

公稱藥理PN（MPa）

0.6

1.0

1.6

2.5

密封試驗（MPa）

0.66

1.1

1.76

2.75

強度試驗（MPa）

0.9

1.5

2.4

3.75

適用溫度

碳鋼：-29℃～425℃ 不銹鋼：-40℃～650℃

適用介質

水、空氣、天然氣、油品及弱腐蝕性流體

泄漏率

符合GB/T13927-92標準

驅動方式

蝸輪傳動、電動、氣動、液動

三偏心氣動蝶閥主要零部件材料：

零件名稱

材料

閥體

鑄鐵、鑄鋼、不銹鋼、鉻鉬鋼、合金鋼

蝶板

鑄鋼、合金鋼（鍍硬鉻）、不銹鋼、鉻鉬鋼

密封圈

不銹鋼、聚內脂、抗磨材料

閥桿

2Cr13、1Cr13不銹鋼、鉻鉬鋼

填料

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