| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow path control valve which has a simple structure and is easy to assemble or maintain.SOLUTION: A valve cap 83 is composed by assembling into a valve housing hole 52 of a valve housing 5 a valve piston 53. The valve piston 53 is moved vertically by a cam 47. The valve housing hole 52 is provided with a large diameter hole 115 and a small diameter hole 116, and an upper part of the small diameter hole 116 becomes a seat valve part 67. The valve piston 53 abuts a first seal material 77 to the valve seat part 67 and blocks communication between a first opening 56 and a second opening 57. In the closed valve state, a chamber 94 is formed at a distal end part of the valve housing hole 52, and the chamber 94 communicates with the first opening 56 via a communication hole of the valve piston 53. |
