A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly and resulting spillage from the valve during repressurization.
建议在防
流
前安装一个过滤器，防止由于止
成受到污染而导致这种门在再增压
间产生泄漏或溢出。
A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly and resulting spillage from the valve during repressurization.
建议在防流前安装一个过滤器，防止由于止成受到污染而导致这种门在再增压间产生泄漏或溢出。
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