Eccentric butterfly valve

The utility model discloses an eccentric butterfly valve, including valve body and valve rod, be equipped with the disk seat on the valve body, be equipped with on the valve rod with valve seat seal complex butterfly plate subassembly, the butterfly plate subassembly includes butterfly plate, sealing washer, butterfly plate clamping ring, dish plate voltage circle compresses tightly ring type seal on the dish board, and the radial lateral surface of sealing washer becomes sealed cooperation with the sealed shape of face of disk seat, the sealing washer is made by rubber magnetism material, makes the sealing washer inhale with the valve seat seal facial features. The utility model aims at providing an eccentric butterfly valve that sealing performance is good. 本实用新型公开了种偏心蝶阀，包括阀体和阀杆，阀体上设有阀座，阀杆上设有与阀座密封配合的蝶板组件，所述蝶板组件包括蝶板、密封圈、蝶板压圈，所述碟板压圈把环形密封圈压紧在碟板上，密封圈径向的外侧面与阀座的密封面形成密封配合；所述密封圈由橡胶磁材料制成，使密封圈能与阀座密封面相吸。本实用新型的目的是提供种密封性能良好的偏心蝶阀。