Check valves are automatic valves to prevent the media back, fluid from the inlet to outlet side to side.

止回阀是防止介质倒流的自动阀门，流体从进口侧流向出口侧。

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The main products are diving blenders, filters, automatic valves, mechanical grid, environmental protection Mixer, screw conveyor, and other products.

主要产品有潜水搅拌机、过滤器自动阀门、机械格栅、环保专用搅拌机、螺旋输送机等系列产品。

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Choose from our extensive Loctite? Line of hand-held, stationary, automatic valves, or diaphragm dispense valves to best suit your application for dispensing adhesives.

您可以从我们广泛的手持式，固定式，自动阀，或隔膜分配阀中选择最适合您的分配胶黏剂应用程序的一种。

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The measure lays the foundation to require the use of remote controlled and automatic shut-off valves on new pipelines.

FORBES: Pipeline Explosion Rattles Natural Gas Industry

To that end, a government watchdog group is recommending the use of automatic shut-off valves, as opposed to those that must be manually attended.

FORBES: Pipeline Explosion Rattles Natural Gas Industry