UV light curing inner repair sewer liner by CIPP process no need digging

The UV light curing inner repair liner (hereinafter referred to as the liner) comprises the inner membrane, resin-impregnated glass fiber, outer membrane, and ultraviolet protective film from the inside to the outside.

1-Protective film: the plastic film on the outermost layer of the hose to protect the hose from ultraviolet radiation and avoid scratches during storage, transportation, pulling, etc.

2-Outer membrane: the plastic film on the second outer layer of the hose. The outer film material is a complete barrel film without the interface, which can better protect the resin impregnated with glass fiber braid from volatilization during the storage and transportation of the hose, and make the resin evenly distributed when the hose is inflated.

3-Glass fiber fabric: the main part of the hose is used to absorb the curing glue, increasing the pipe's strength after curing.

4-Inner membrane: the plastic film at the innermost layer of the hose, which protects the resin impregnated with glass fiber braid from volatilization during the storage and transportation of the hose, and makes the resin as evenly distributed as possible when the hose is inflated. After the hose is cured, the inner membrane shall be pulled out of the inner liner.

Daoyunai Energy Saving Technology Limited has been committed to manufacturing trenchless CIPP UV cure systems with liners and CCTV inspection crawlers for underground pipelines to service customers all over the world.

The product range covers four series and more than 20 models in the underground pipeline trenchless repair industry:

1. UV curing and repair integrated system D919: LED lamp curing and high-voltage mercury lamp curing.

2. UV cure liner: from diameter DN200 up to DN1800

3. Hot water cure liner: impregnated liner to invert by water gravity and cure by hot water

4. Pipeline inspection robots crawler D18 and D18s: CCTV video inspection of pipeline defects

5. Pipeline periscope D16S: quickly  view the internal defects of the pipeline

Headquartered in Shanghai, Daoyunai has a number of independent intellectual property rights and also has a manufacturing base and R&D and testing center in Suqian City, Jiangsu Province, covering an area of more than 35000 square meters, which fully implements the international quality management system.

Focused on producing trenchless CIPP system with liners and inspection CCTV

Committed to providing solutions for reducing costs and improving efficiency