General Installation Information: Sump Pump Swing Check Valves may be installed in either vertical up-flow (see illustration) or horizontal positions on pump discharge line.

• 一般安装信息：水坑泵旋启式止回阀既可安装在垂直朝上（参阅图示）的泵排放管道上，也可安装在水平的泵排放管道上。