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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
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厨房下水管道需要装返水弯的,具体原因是这样的. 在洗手盆的下水管中段,有一个回形弯,欲称反水弯。这实际上是个连通器,当液体静止时,两边的液面总是相平的。当洗手盆向下放水时,水面超过 点,水就自然流向下水道。当盆里的水快流尽时,管中的水面逐渐下降,降落到与 点等高时,水就不再流动,管中这部分形成一段“水塞”,把管中的污水、臭气与外界隔绝。
你好,厨房下水管道需要装返水弯,而且存水弯的水封厚度不得小于50mm。这是有明文规定的,有下达文件的,所以必须的安装。