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Refer to flow direction arrow on valve nameplate or body.
参照阀门铭牌或阀体上的流向箭头。
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Install with the arrow on valve body pointing in the direction of flow.
安装时要使阀体箭头指向水流方向。
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Install with the arrow on valve body pointing in the direction of flow.
安装时要使阀体箭头指向水流方向。
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