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原文
Vacuum Check Valve (One-way valve) installed Vacuum Check Valve (One-way valve): The installation should note the following top: 1, the check valve in the pipeline do not bear the weight, a large valve (aetv One-way valve): should be self-supporting, so that the pressure generated from piping impact. 2, the installation media attention to the direction of flow of the body should be marked with the arrow direction. 3, the vertical lift flap valve (One-way valve): should be installed in a vertical pipe. Check Valve (One-way valve) should note the following things to install the top: 1, the check valve in the pipeline do not bear the weight of a large non-return valve should be independent of support, so that the pressure generated from piping impact. 2, the installation should pay attention to the direction of media flow and the body of the votes in the arrow direction. 3, the vertical lift flap valve should be installed in a vertical pipe. 4, the level of valve lift check valve should be installed in horizontal pipelines.
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是由上海日美阀门制造有限公司提供的阀门新闻，中文译文仅供参考，以下提供站内导航搜索：

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译文：
真空止回阀(One-way valve)：的安装应注意以下事顶： 1、在管线中不要使止回阀承受重量，大型的止回阀(aetv One-way valve)：应独立支撑，使之不受管系产生的压力的影响。 2、安装时注意介质流动的方向应与阀体所标箭头方向一致。 3、升降式垂直瓣止回阀(One-way valve)：应安装在垂直管道上。止回阀(One-way valve)的安装应注意以下事顶： 1、在管线中不要使止回阀承受重量，大型的止回阀应独立支撑，使之不受管系产生的压力的影响。 2、安装时注意介质流动的方向应与阀体所票箭头方向一致。 3、升降式垂直瓣止回阀应安装在垂直管道上。 4、升降式水平瓣止回阀应安装在水平管道上。

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