**便捷的管道非开挖修复材料|不锈钢双胀环EPDM

不锈钢双胀环工艺是专用于大口径管(DN600或以上)道接口错位，渗漏的非开挖修复技术，具有设计合理、实用性强、修复质量高、施工便捷、施工简便、工期短、施工不受地面交通、环境温度的影响等特点。

　　不锈钢双胀环工艺修复流程：根据管道的内径，首先在工厂定制不锈钢压条和橡胶条，然后进入管道安装，先手工固定橡胶条，接着通过扩张器，用不锈钢条压住橡胶条，从而完成管道局部防渗修复，必要时还可以对管道渗漏处进行注浆处理。

不锈钢双胀环工艺修复管径选择：

（1）内衬钢套环设计时，首先要确定原管道的管道直径，确保钢套环外径被修复管道的内径之间的修正关系。（2）采用双胀圈局部内衬法施工时，钢套环的设计制作宽度必须满足修复管段缺陷处的中心长度。

（3）钢套环内衬管与旧管道一起组成复合管道使用，内衬管设计壁厚满足旧管道损坏地下水的渗漏压力要求。

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