UV Cured Hose: A Revolutionary Material for Trenchless Pipeline Repair

By Anhui DER New Material Technology Co., Ltd

1. Introduction: A New Era for Urban Pipeline Repair

Deep underground in our cities, a silent revolution is taking place. Urban pipelines—the “veins” of the city—carry sewage and stormwater. As they age, problems such as corrosion, deformation, and blockages threaten urban safety and efficiency.

Traditional excavation repair methods require roads to be opened, causing high costs, long construction times, and disruption to traffic. To solve these issues, trenchless pipeline repair—especially the UV cured hose—has become the new standard in urban infrastructure maintenance.

2. The Rise of Non-Excavation Technology

Non-excavation repair, or trenchless restoration, rehabilitates underground pipelines without surface damage. It offers three key advantages:

• 🚧 Fast construction speed
• 🌱 Minimal environmental impact
• 💰 Reduced overall cost

For example, in Zhangzhou City, using UV-cured repair shortened the construction time of a damaged sewer line from several days to just one day, while keeping roads open.

3. How UV Cured Hose Technology Works

UV-CIPP (Cured-in-Place Pipe) is an advanced trenchless repair technology designed for aging pipelines. A resin-impregnated hose is inserted into the damaged pipe, inflated, and then cured with ultraviolet light. The result is a seamless “pipe-within-a-pipe” structure that restores strength and flow.

This process is fully automated with on-site monitoring equipment, reducing the need for personnel entry and improving construction safety.

4. DER160: High-Performance Film Material for UV Cured Hose

The performance of a UV cured hose depends on its lining material. Anhui Ya’en’s DER160 PVC precision knife-coated film is specifically engineered for UV curing applications, combining a high-strength polyester base fabric with dual PVC coatings.

Key Advantages of DER160:

• Lightweight & Thin: Simplifies transportation and installation.
• High Strength: Tensile strength up to 200–400 N ensures durability during pulling and inflation.
• Chemical Resistance: Resists acid, alkali, and salt corrosion in sewage environments.
• UV Resistance: Maintains integrity during curing under UV exposure.
• Long Service Life: Extends pipeline life by 20–30 years.

5. Real-World Applications of DER160 UV Cured Hose

DER160 has proven its value in multiple municipal projects across China:

• Yangzhou, Hanjiang District: Repaired a DN800 concrete pipe (150m) in just 3 days—boosting drainage capacity by 40%.
• Performance Highlights: Liner strength ≥ 80% of the original pipe, 3× corrosion resistance, 20–30 years lifespan extension.

By eliminating road excavation and minimizing disruption, UV cured hose repair delivers significant cost savings. Cities like Yangzhou even offer 30% government subsidies for trenchless repair projects.

6. Future Outlook: Smart, Efficient, and Sustainable

As urban infrastructure continues to age, demand for trenchless repair materials is rising. Policies such as Yangzhou’s “Three-Year Drainage Network Action Plan” require that over 70% of municipal repairs use trenchless methods by 2025.

Industry Development Trends:

• Smart Monitoring: Real-time data for intelligent maintenance.
• Material Upgrading: Higher temperature and chemical resistance.
• Equipment Miniaturization: Portable UV curing systems for tight spaces.

7. Conclusion: DER160 — Core of a Cleaner Urban Future

From Zhangzhou to Yangzhou, UV cured non-excavation repair technology is revolutionizing how cities maintain underground lifelines. At the core lies DER160, the innovative UV cured hose material developed by Anhui Ya’en New Material Technology Co., Ltd.

Invisible to the public eye yet vital beneath our streets, DER160 supports sustainable urban infrastructure—one pipeline at a time.