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原文
Flange butterfly valve main features are: 1, small, lightweight, easy disassembly and maintenance, and can be installed in any position. 2, simple and compact structure, operation torque is small, 90 ° rotation on rapidly. 3, the flow characteristics of trend line, adjust the performance. 4, disc stem connection with the use of non-pin structure to overcome the possible internal leak. 5, using the spherical shape of cylindrical disc, increased sealing performance and extend the life of the valve, with more than 50,000 times opening and closing pressure remains zero leakage. 6, seals can be replaced, and sealed to achieve reliable two-way seal. 7, the disc can be spray coating according to user requirements, such as nylon or PTFE type. 8, the valve connecting flange can be designed and connected to the clip. 9, the drive can choose manual, electric or pneumatic.
原文来自：http://www.diefa.org

是由上海丰企阀门有限公司提供的阀门新闻，中文译文仅供参考，以下提供站内导航搜索：

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译文：
法兰蝶阀主要特点为：　　1、小巧轻便，容易拆装及维修，并可在任意位置安装。　　2、结构简单、紧凑，操作扭矩小，90°回转开启迅速。　　3、流量特性趋直线，调节性能好。　　4、蝶板与阀杆的连接采用无销钉结构，克服了有可能的内泄漏点。　　5、蝶板外圆采用球面造型，提高了密封性能及延长了阀门的使用寿命，带压启闭5万次以上仍保持零泄漏。　　6、密封件可更换，且密封可靠达到双向密封。　　7、蝶板可根据用户要求喷涂覆层，如尼龙或聚四氟类。　　8、该阀可设计成法兰连接和对夹连接。　　9、驱动方式可选择手动、电动或气动。

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