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给排水管道管径有哪几种？

2025-03-15 11:11:23

推荐回答（2个）

回答1：

De与DN
两种。。
De表示为公称外径。
DN表示公称直径。
De110的当然有．．．．
而且用到的概率很高．．
通常多层的建筑排污立管与横管都是用的De110．

回答2：

简单地说，管径是通过水力计算得来得
步骤1
通过建筑图纸看卫生器具，确定给水当量，确定合适得流速
步骤2
查水力计算表确定管径和比模阻

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