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球阀的球体绕阀体中心线作旋转来达到开启、关闭的作用，在管路中主要用来做切断、分配和改变介质的流动方向，是近年来被广泛采用的一种新型阀门。目前球阀的密封面材料广泛使用塑料、密封性好，在真空系统中也已广泛使用。

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蜗轮V型球阀

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Q41F法兰球阀

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Q41F/Q71F对夹球阀

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