Daoyunai Energy Saving Technology Limited

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

Daoyunai Energy Saving Technology Co., Ltd. (hereinafter referred to as Daoyunai) was established in 2012. It is located in Songjiang District, Shanghai, upstream of the Huangpu River.

It is a high-tech manufacturing enterprise specializing in providing pipeline CCTV inspection and trenchless repair UV cure equipment and liner materials. The company has a number of patents and has been serving the pipeline inspection and trenchless repair market with leading product technology for more than 10 years.

Daoyunai is not only the manufacturer but also is the trenchless technology solutions provider for our customers. We provide UV cure systems and liners, CCTV crawlers, Pole cameras, Patch repair, Packers, High pressure jetting, Projects Construction, Products Rental, and also technology training services.

With the service tenet of "comprehensive innovation and constantly exceeding customer expectations", Daoyunai (DAO) has won the trust and appreciation of customers with high reliability, high quality, high efficiency, competitive price, and perfect after-sales service.

Daoyunai has a research, development, manufacturing, sales, and service team with rapid response and is familiar with the underground trenchless repair.

We are ready 24 hours!

DAO Culture

Vision: building green hills and blue waters with smooth pipelines, to be the brand that is Intelligently and Proudly Manufactured in China

Mission: work together with customers to reduce costs and improve efficiency

Core values: dedication to customer success, equality and respect, opening up and win-win, continuous improvement.