2 雙偏心雙向金屬密封蝶閥

      用途 ：

       雙偏心雙向密封系列蝶閥是我公司應廣大用戶要求，精心研究設計的新一代產品。該系列蝶閥引進國內外*制造技術，以*新穎的結構，獲得高品質的性能。該閥結構合理，密封性能可靠、流阻小、壓差低、驅動靈活省力，使用壽命倍增。符合GB12238-89《法蘭和對夾連接蝶閥》和JB/T8527-1997《金屬密封蝶閥》標準，并參照美國ANSI/AWWAC504標準，采用美國CAD輔助軟件設計。雙偏心，即軸向偏心，閥軸中心線不在閥板密封面上；徑向偏心：閥軸的中心不在閥門通道的中心上，閥板采用雙平板桁架式多流道結構，在流速較高時，各流道水流能夠互相制衡，避免閥板出現顫抖現象，確保閥門穩定性。特殊的設計，特殊的幾何結構，使閥門具有越關越緊得功能，當打開閥門時，只要閥軸稍微旋轉，閥板即全部脫離閥座，減少了摩擦力，是開啟力矩呈現zui小*狀態，密封嚴實可靠，經久耐用，廣泛的用于水利功能、自來水、電力循環水、石油、石化等工業管道上作截斷介質流動。

      Double biased bidirectionla pressure metal seal series butterfly valve is the our company should the user communities request,carefully studies the design the new generation of product.This serids butterfly valve has introduced the domestic and foreign advanced manufactures technology,by the unique novel structure,obtains the high quality the performance.This valve stucture teasonable,the seal strict relable,resistance small,the differential pressure is low,the actuation nimbly reduces effort,the service life multipies,Conforms to GB12238-89”Flange And to Clamps Connects Reed balbe”and JB/t8527-1997”Metal seal butterfly valve” the standard,and refers to the American ANSI/AWWWAC504 standard,uses the American CAD software assistance design.Double bias ,namely axial bias, valve axle not in valve board packing surface;Radial direction bias:The valve axle in the valve passage center core,the valve board does not use the plate posture multi-flow channels structure,is higher when the speed of flow,various flow chanels current of water can mutually make the graduated arm,avoids the valve board appearing shivers the phenomenon,guarantees the valve the stability.The special design,the special geometry structure,enable the valve board to habe pass tighter function,when turns on the valve,so long as the valve shaft slightly revolves,the valve board namely compley is separated form the valve seat,reduced the friction force causes to open the moment of force to present the smallest optimum condition,the seal solid is reliable, durable,the widespread application to industry pipeline and so hydraulic engineering,running water,electric power circulating water,petroleum,chemical industry makes the interruption to flow.

       特點 Features：

1、    蝶閥為雙向承壓，雙向金屬密封，特殊的結構形式可任意調整密封比壓，采用偏心S形錐形閥座密封面，使密封面不易損壞，提高閥門的使用壽命。

2、    操作扭轉力矩小，轉90度啟閉，輕便迅速。

3、    流阻小，具有良好的水利特性，流量特性近試傾斜直線，節能效果好，雙向密封對水流無要求。

4、    閥板采用符合流體學性能的雙平板桁架式多流道設計。

         型號說明 Model explanation：

        主要性能參數 Main performance parameter

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      主要零件材料 Material for main parts：

      外型及連接尺寸D342HS-PN6（DN80-3000）

 

                                主要外型及連接尺寸（mm）