The move can circulation depending on the Main movement and is determined by whether or not the solenoid has flowed or not. If The existing flows, the coil will push the core to open up the channel/valve, and when It's not necessarily flowing, the channel will be closed. Controller: A https://pneumatic-actuator61097.shotblogs.com/pneumatic-actuator-ball-valve-things-to-know-before-you-buy-28932439