Backflow preventer is a kind of hydraulically controlled combined device that strictly limits the water in the pipeline to flow in only one direction, which is developed based on the situation that the backflow pollution of tap water supply equipment, especially the domestic drinking water pipeline, is serious and there is no effective device to prevent backflow pollution. Its function is to prevent the medium in the pipeline from flowing backward under any working conditions, so as to achieve the purpose of avoiding backflow pollution.

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▌Structural Characteristics and Uses

The backflow preventer is a hydraulic control combination device developed based on the water supply equipment of tap water, especially in cases where the backflow contamination of drinking water pipelines is serious and there are no devices to prevent backflow contamination. It strictly limits the water in the pipeline to flow in only one direction. Its function is to prevent the medium in the pipeline from flowing back under any working conditions, in order to avoid backflow contamination.

▌Main Component Materials

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DF41X Backflow Preventer

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