potable water supply

A Double Check Detector Assembly shall be installed on fire protection systems when connected to a potable water supply.

当消防系统连接到饮用水供应系统时，应该安装一个双止回阀总成。

We should speed up the construction of facilities for water-saving irrigation and for supplying potable water for people and livestock, roads linking county seats and townships, facilities for rural energy supply, as well as educational, medical and health facilities in the countryside.

加快节水灌溉、人畜饮水、县乡公路、农村能源、农村教育和医疗卫生设施等建设。

Part of the water supply tank ( pool) no cover, no lock and no management, long-term lack of cleaning, disinfection, water pipes and valves are improperly connected, resulting in non-potable water into drinking water pipes, causing water pollution.

有一部分供水水箱（池）无盖、无锁又无人管理，长期得不到清洗、消毒，水箱管道和阀门连接不合理，致使非饮用水进入饮用水管道，造成水质污染。

Series 775 Double Check Valve Assemblies provide protection of the potable water supply for non-health hazard-connections .

系列775双止回阀总成防止 交叉连接 处 非 健康危害的流体污染饮用水供应系统.

To protect the potable water supply from backflow a non-potable source due a drop in supply.

防止由于高度降低而受到 非 饮用水源回流到饮用水供应系统中.

DO NOT add any chemicals to the system piping which will contaminate the potable water supply.

不要在管道系统中添加任何可能会造成饮用水污染的任何化学物品.