| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve device that improves sealability without separately providing seal member, and thereby can reduce a manufacturing cost.SOLUTION: A valve device includes: a housing 10 inside which a fluid passage is formed, and an annular valve seal 13 is formed in the middle part of the fluid passage; an adjustment valve 100 that closes the fluid passage by contacting with the valve seat 13 and can prevent fluid from passing through the fluid passage; and a drive mechanism that drives the adjustment valve 100. The adjustment valve 100 can be elastically deformed, and includes: a valve head 120 capable of contacting with the seal valve 13; and a shaft part 110 that is constituted separately from the valve head 120, and connects the valve head 120 and the drive mechanism. |
