The discharge line must be the same size as the valve outlet, and must pitch downward from the valve to a safe place for disposal.
排泄管道必须与安全阀出口具有相同的口径，必须从安全阀的下方接到安全排放地点。
The drain pipe must be the same size as the valve outlet, and must pitch downward from the valve.
排泄管与安全阀出口必须有相同的通径，必须从安全阀开始垂直向下。
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