刚性防水套管的作用

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　　刚性防水套管的作用

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　　1.刚性防水套管适用于铸铁管和非金属管，但相关尺寸应根据管壁厚度进行修正。

　　2.翼环和钢套管加工完成后，外墙刷底漆一次(底漆包括铅或冷底油)。

　　3.套管尺寸表中所列的材料重量为钢套管重量(套管长度的L值按200毫米计算)，翼环钢套管和翼环采用A3材料制成，并与T42焊条焊接。

　　4.套管穿墙在非混凝土墙的情况下应改用混凝土墙，其浇筑混凝土的范围，二类套管的直径应比翼环(D4)大200毫米，且套管必须在墙内浇筑。套管中的填料应压紧。

　　5.防水套管处的混凝土墙厚度不应小于200毫米，否则应加厚墙的一侧或两侧。加厚部分的直径应至少比翼环(D4)的直径大200毫米。

　　6.刚性防水套管用油麻和石棉水泥填充，填充后压实。

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