D343H法兰蝶阀采用的是三维偏心原理设计，是在原有的双偏心基础上增加了一个*的偏心，不仅利用了原有的凸轮效应，而且*消除了90度旋转中阀板与密封圈之间的全部磨擦。
  D343H法兰蝶阀通过优化了蝶板密封面与阀座密封圈之间接触角的特性，阀门接触角大于锁定锥角范围。从几何形状看，排除了蝶板卡死的可能性，从而确保阀门开关所需扭矩。蝶板密封面可以镶不锈钢密封圈或在蝶板上直接堆焊不锈钢或硬质合金，可确保阀门在各种用途包括高温和不洁工况下耐用。

主要零件材料：

  锐博阀门有限公司始终以质量为本，一切为满足用户的经营理念，不断引进*进的新技术，新工艺、新材料，竭诚为用户提供优质的阀门产品和更加完善的售后服务。 “诚信为本，始终如一，客户*，携手共赢！”

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