General installation Information: Utility Swing check valves are designed for horizontal installations, but may be installed in up-flow only vertical position.
一般安装信息：实用旋启式止回阀设计用于水平管道安装，但是也可以安装在垂直朝上的位置。
General installation Information: Utility Swing check valves are designed for horizontal installations, but may be installed in up-flow only vertical position.
一般安装信息：实用旋启式止回阀设计用于水平管道安装，但是也可以安装在垂直朝上的位置。
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