| Welding: | | | |
| Description: Cracks with a gap less than 1/8" can be repaired using single bead extrusion weld. Joints, punctures, cracks or minor damaged sections larger than 1/8” in thickness should utilize HDPE sheet reinforcement, and sheet thickness should be at a minimum the same thickness as pipe wall. |
| Installation Instructions: Only an experienced welder knowledgeable in corrugated HDPE Pipe repair shall be allowed to repair the pipe. Evaluate the extent of the repair required. Thoroughly clean the area to be repaired, ensuring all oxidation is removed. All welding rod, and sheet material used to make repairs should be the same cell classification as the pipe or meet the cell classification of 345464C as defined by ASTM D3350. Single cracks with a gap less than 1/8" can be repaired using single bead extrusion welds. For larger cracks, joints, punctures, or minor damage HDPE sheet reinforcement with a thickness at least the same as the pipe wall shall be welded in place. |
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| Extrusion Welding Animation | | Electrofusion Welding Animation | |
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| Return to HDPE Pipe | | | |
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