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Solenoid valve and cut-off valve used in series
The author: Time:2021/5/18

  两台电磁阀串联用于释放执行机构气压。正常操作时电磁阀A、B的进气口1均打开,排气口2关闭,切断阀供气正常,气开式切断阀打开。当SIS发出联锁信号时,电磁阀A进气口1关闭,切断阀供气中断,同时电磁阀A排气口2打开,此时电磁阀B进气口1依然打开,切断阀气缸内的气由电磁阀A的排气口2排出,气开式切断阀关闭。
  当手动按钮发出联锁信号时,电磁阀B进气口1关闭,切断阀供气中断,同时电磁阀B排气口2打开,切断阀气缸内的气由电磁阀B的排气口2排出,气开式切断阀关闭。当SIS与手动按钮同时发出联锁信号时,两电磁阀进气口1关闭,排气口2打开,切断阀供气中断,切断阀气缸内的气由电磁阀B的排气口2排出,气开式切断阀关闭。对气关式( FO )切断阀,动作则是相反。

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