D343W不銹鋼蝶閥產品介紹：

   多層次三偏心金屬硬密封蝶閥采用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。 

D343W不銹鋼蝶閥標準規(guī)范：

設計制造標準：GB/T 12238-2008
結構長度標準：GB/T 12221-2005
連接法蘭標準：GB/T 9113
壓力溫度等級：GB/T 12224-2005

試驗檢驗標準：GB/T 13927-2008  

結構特點：
1、硬密封蝶閥采用三偏心硬密封結構，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、蝶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、根據(jù)用戶需求，閥門供應網(wǎng)的硬密封蝶閥可以設計成具有雙向密封功能，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。 
 

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