CF高真空挡板阀系列是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。

CF pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed.

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GD Q气动高真空挡板阀是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。

GDQ pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, controls the actuating cylinder to drive the valve opened closed.

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GDC - J型电磁高真空挡板阀是以电磁力为动力直接带动阀板动作，使阀门开启或关闭。

GDC-JQelectro high vacuum butterfly valve USES electromagnetic force to directly drive valve disc working. thus to make valve opened ro closed.

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