| 摘要 |
<p>Provided is a piston valve, for which the maintainability of the valve itself is excellent and which is able to prevent problems due to the valve and improve maintainability of the plant itself. The piston valve is provided with: a body in which a valve seat is formed midway in the pipe channel; a stem, the tip of which is provided with a valve body that closes the pipe channel by coming in contact with the valve seat; and a stem-driving part that is disposed towards the base end of the stem and moves the stem forward and backward in the longitudinal direction thereof. In the piston valve that controls the flow of a fluid in the pipe channel by causing the valve body to touch or separate from the valve seat, a yoke part, which connects and fixes the body to the stem-driving part, is inserted between the two and the yoke part is connected to the body via a bayonet lock structure.</p> |
