| 摘要 |
PROBLEM TO BE SOLVED: To provide a closing structure of a fluid pipe having favorable sealing performance, easy in installing or replacing a seal member, and capable of preventing the fall-off of the seal member. SOLUTION: The closing structure of the fluid pipe has a valve seat arranged in the fluid pipe and arranged at the peripheral edge of a fluid discharge port and a valve rod capable of coming into pressure-contact with the valve seat, and closes the fluid discharge port so as to be openable and closable by bringing the valve rod into pressure-contact with or separating from the valve seat by operating the valve rod for driving, and is characterized in that a plurality of the valve seat are arranged integrally with a pipe constituting member at the peripheral edge of the single fluid discharge port, and the valve rod is provided with the seal member capable of abutting on the plurality of valve seats. COPYRIGHT: (C)2009,JPO&INPIT
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