| 摘要 |
PROBLEM TO BE SOLVED: To provide a channel switching valve capable of excellently maintaining sealing performance of a valve element for a long period of time.SOLUTION: The channel switching valve includes a valve case 20, a ball valve element 12, and a valve seat member 24. The ball valve element 12 is supported rotatably around a valve shaft between a first position in which a channel 12a communicates a first opening 30 with a second opening 32 and a second position in which the channel 12a communicates the first opening 30 with a third opening 34, and has a third position in which the channel 12a is blocked between the first position and the second position. The valve seat member 24 is provided with a cylindrical body 25 having a through-hole 25a capable of communicating with the channel 12a, and an energizing member 26 closely contacting a tip side of the cylindrical body 25 on a surface of the ball valve element 12. |
