防回流

例句

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1.
The hose connection backflow preventer shall consist of two independently operating check valves with an intermediate atmospheric vent.
这种软管连接防回流阀应该包括两个独立运行的止回阀，这些止回阀带中间大气排气口。
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2.
Caution: Do not install a strainer ahead of the backflow preventer on seldom-used, emergency water lines (i. e. fire sprinkler lines).
警告：在平时很少用，只在紧急状态下使用的管线（即消防喷淋管线）上的防回流阀前不要安装过滤器。
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3.
a visual check of air gaps is sufficient , but mechanical backflow preventers have to be tested with properly calibrated gauge equipment.
尽管安装气隙足够目视观察，但是机械式防回流阀还是必须用适当量程的仪表设备进行检测。
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4.
Designed to retrofit backflow protection onto fire hydrants used for temporary water service.
适用于用在临时性水应用的消防栓上的防回流阀的更新改造。
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5.
ASSEMBLY: If the backflow preventer is disassembled during installation, it MUST be reassembled in its proper order .
组装：如果在安装期间拆卸了防回流阀，则必须按照正确的顺序重新组装。
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6.
Can be temporarily removed for replacement of the backflow preventer without the need for replacement of freeze protection services .
可以暂时性拆卸，在不需要更换防冻装置的情况下，便于更换防回流阀。
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7.
The shutoff valve with the test cock is to be mounted on the inlet side of the backflow preventer.
带测试旋塞的关闭阀应该安装在防回流阀的进口侧。
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8.
Allows for the installation of the backflow preventer "at the service connection" in accordance with AWWA Standards.
允许在“维修连接处”安装防回流阀，符合美国自来水厂协会的标准。
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9.
A strainer should be installed ahead of the backflow preventer to protect all internal components from unnecessary fouling.
在防回流阀前应该安装一个过滤器，以保护所有内部部件不会受到不必要的污染。
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10.
Strategically placed doors provide access to the backflow prevention assembly for testing and repair without removal of the entire unit .
永久性配置的门便于接近防回流阀总成进行检测和不拆卸整个装置的情况下进行维修。
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