| 摘要 |
Provided is a channel switch valve that can eliminate a sealing member, such as an O ring, to prevent the leakage between a plurality of outflow ports, and does not require strict dimensional control and precise machining and forming technology, and can prevent leakage between the outflow ports reliably and can lower the machining and assembly cost and the production cost. A valve element 40 is disposed integrally with a valve shaft 30 at a lower end of the valve shaft, and the valve element 40 has at least one passage opening 41, 42 to let an inflow port 20 and each outflow port 21, 22 open in a selectable manner, and is configured so that the upper face of the valve element 40 is pushed against valve seats 15A, 15B by fluid pressure in the valve body 6, and in this state, the valve shaft 30 with valve element 40 is rotated, whereby the valve can have a first circulating state, in which fluid flows from the inflow port 20 to the outflow port 21 via the passage opening 41 and a second circulating state, in which fluid flows from the inflow port 20 to the outflow port 22 via the passage opening 42 in a selectable manner. |
