| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve device capable of making fluid flow in a direction different from one direction as need arises and restricted in deterioration of sealability. SOLUTION: A check valve 14 has a valve body 16, to which a first fluid path 12 and a second fluid path 13 are connected. A valve chamber 19 communicated with the first fluid path 12 and the second fluid path 13 is provided in the valve body 16. A valve seat 21 is provided in the peripheral edge of a valve orifice 20 formed on a first fluid path 12 side of the valve chamber 19 and opened to the first fluid path 12. Further, a movable valve element 23 having magnetism in at least one part thereof is provided so as to seal the valve orifice 20 by touching the valve seat part 21 and so as to open the valve orifice 20 by separating from the valve seat part 21 with the fluid flowing from the first fluid path 12. A valve holder 15 for holding condition of the movable valve element 23 by separating the movable valve element 23 from the valve seat part 21 with magnetic force is provided outside of the valve body 16 of the check valve 14. COPYRIGHT: (C)2009,JPO&INPIT
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