快盈1气动闸阀，借助压缩空气驱动的阀门，闸阀关闭时 , 密封面可以只依靠介质压力来密封 , 即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封，这就是自密封。
气动刀型闸阀、放料阀
气动闸阀
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