Full-cycle CIPP rehabilitation for urban sanitary and combined sewer systems
Municipal sewer rehabilitation is the largest application sector for CIPP globally. Aging concrete and clay sewers across cities worldwide require structural renewal without the disruption of open-cut excavation. Huatao supplies the full toolkit: inspection robots, pretreatment equipment, liners, curing systems, and acceptance testing protocols.
Different damage profiles, host materials, and operating conditions require different rehabilitation approaches. Here are the methods best suited for this application sector.
Every successful CIPP project begins with a thorough condition survey. Our CCTV inspection robots and pipeline periscopes capture continuous video records of pipe interior condition, mapping defects and confirming dimensional compatibility before liner specification.
UV-CIPP delivers rapid, year-round rehabilitation with minimal traffic disruption — critical for urban sewer projects under busy roadways. The 50-year service life and excellent corrosion resistance make it the preferred method for high-value urban infrastructure.
Steam-cured inversion CIPP rehabilitates pipe segments up to 300 meters in a single operation, ideal for long sewer runs between manholes. Compatible with bends and curved sections, the method is well-proven across European and American municipal systems.
Our composite spray-lining equipment rehabilitates manholes, inspection wells, and junctions with cement mortar plus high-strength polyurethane. The combined system provides 50-year corrosion protection and structural reinforcement.
Send us pipe diameter, length, host material, and conveyed media — we'll recommend the optimal liner system and curing method.
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