How to repair HDPE double wall corrugated pipe

How to repair HDPE double wall corrugated pipe

1.When the diameter or side length of the partially damaged hole of the HDPE double-wall corrugated pipe wall is not greater than 20mm, a polyvinyl chloride plastic bonding solvent can be used to paste a circular plate with a diameter of not less than 100mm and the same material as the pipe.

2.After the HDPE double-wall corrugated pipe is laid, the pipe wall is partially damaged due to accidental factors. When the area of ​​the damaged part or the length and width of the crack does not exceed the specified, paste repair measures can be taken.

3. There are local cracks on the pipe wall. When the length of the crack is not greater than 1/12 of the pipe circumference, a plate with the length greater than the crack length plus 100mm and the width not less than 60mm can be pasted on the crack. The two ends of the plate should be Cut into a circular arc shape.

4. When the partially damaged hole of the pipe wall is 20-100mm, a polyvinyl chloride plastic bonding solvent can be used to paste a circular plate not smaller than the hole to a large size plus 100mm and the same material as the pipe.

1. Before bonding, use cyclohexanone to brush the base surface of the bonding part, and apply the bonding solvent as soon as possible after it is dry. The plate for external bonding should be used, and the arc cut from the corresponding part of the pipe of the same pipe diameter Board. The inner side of the outer board is also cleaned first, and the base surface is painted with cyclohexanone, and then the bonding solvent is painted.