| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a check valve for improving responsiveness when opening the valve. <P>SOLUTION: This check valve is provided for maintaining a state of still closing the valve even if pressure in the other area K becomes higher than pressure in one area O by releasing fluid by opening the valve when differential pressure to the pressure in the other area K of the pressure in the one area O becomes large, has a lip 31 contacting with an opposed surface arranged in a position opposed to the check valve, is constituted so that the lip 31 contacts with the opposed surface in a state of being deflected to the other area K toward the tip, and is characterized by applying satin finishing over the whole area capable of contacting with the opposed surface to a lip surface. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
