| 摘要 |
PURPOSE: A valve is provided to simplify the structure and prevent the damage and wear of a disk member by opening/closing the disk member by the air pressure. CONSTITUTION: A valve is composed of a valve body(100), a flexible disk member(200) inserted into the valve body, and a disk fixing member(300). The valve body includes an air-chamber forming unit(110) having an air chamber(112) and an air injection unit(114) communicated with the air chamber, and a flange unit(120) having a plurality of disk fixing holes and coupling holes(124). The disk member is expanded and contracted by the air pressure, and opens/closes an air passage. The disk fixing member is coupled to the flange unit and fixes the disk member to the flange unit.
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