NIBCO Iron Body Check Valves may be installed in both horizontal and vertical lines with upward flow or in any intermediate position.

尼伯科铸铁阀体止回阀可以安装在水平管线或流向朝上的垂直管线中的任何位置上。

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NOTE: Twin Disc Check Valves can be installed horizontally or in the vertical position with flow up.

注意：双阀瓣止回阀能够安装在水平或流向朝上的垂直位置。

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Swing check valves are used to prevent reversal of flow in horizontal or vertical pipe lines.

旋启式止回阀用于防止水平管路或垂直管路的流体倒流。

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