Waste draining pipe, offlet or drain pipe should be connected to the main pipe;each pipe should connect two valves with the most possible short valve-to-valve pipe length.
排污管、放水管或疏水管应
别连接到
总管上，每管
应串接两个阀门，两阀门
管段应尽量缩短。
Waste draining pipe, offlet or drain pipe should be connected to the main pipe;each pipe should connect two valves with the most possible short valve-to-valve pipe length.
排污管、放水管或疏水管应别连接到总管上，每管应串接两个阀门，两阀门管段应尽量缩短。
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