| 摘要 |
A solenoid on-off valve for opening or closing a flow channel passing through a valve chamber by alternately moving a plunger in the valve chamber with a solenoid and a return spring, comprises valve seats on both ends of the valve chamber, a valve head 12 for closing valve seats is disposed at one end, while a path 14 for communicating the valve hole of the valve seat with the valve chamber is disposed at the other end of the plunger and the flow channel is adapted so as to be normally open or normally closed by the mounting of the plunger in the valve chamber while turning the direction depending on the case.
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