| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a check valve device without requiring a ball. SOLUTION: This check valve device uses a disk 15 for a valve member so as to eliminate the need of a ball. A valve seat is also ordinarily not required. Instead of that, a substantially flat surface 13 mutually functions with the disk 15. In order to enable flowing in one-way direction, the disk 15 is held at a proper position by a holding portion 6 extending through a center hole 16 of the disk 15, and bias to the surface 13 by an elastic bias ring 17 axially guiding the disk 15.</p> |
