| 摘要 |
The present invention relates to a multiple-sealing butterfly valve. More specifically, a first body sheet and a second body sheet are installed between a protrusion unit / a pushing sheet and a disc sheet in the butterfly valve to block water. The first and second body sheets are formed to be bent on both sides of a valve, thereby enabling bidirectional water stop and improving water stop performance using a water pressure. Even if the butterfly valve is compressed by the application of an overload caused by a water pressure and excessive initial setting of the first and second body sheets, the first and second body sheets and components in the valve, which are in contact with the first and second bodies to correspond to the same, are formed in the shape of being bent at the same radius for surface contact. Therefore, the multiple-sealing butterfly valve can prevent damage. |
