| 摘要 |
A pilot-operated three-port valve includes three ports, two valve seats that are concentric and opposite each other, a poppet-type valve member that is disposed between these two valve seats, and a pilot operating portion that opens and closes the valve member using a rod. Seat surfaces of the two valve seats and a first seal surface and a second seal surface of the valve member are flat. The valve member is attached to an end of the rod coaxially with the rod and so as to have a degree of freedom of inclination from the axis of the rod. |
