| 摘要 |
PURPOSE: A structure of a flexible valve disc of a gate valve for water supply is provided to smooth the vertical movement of a gate valve body by the elasticity generated by the communication between cut portions of L-shaped holders and grooves of guide protrusions, thereby reducing the abrasion and water leakage and elongating the lifespan. CONSTITUTION: A structure of a flexible valve disc of a gate valve for water supply includes a guide hole(3) in the center and a pair of guide protrusions(4) on an outer periphery, wherein L-shaped holders(2) are mounted at both sides of the guide hole, a groove(5) is formed between the guide protrusions, and cut portions(201) are formed in the L-shaped holder to be communicated with the groove, thereby providing elasticity.
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