Laminated non-woven fabric for pipeline repair is an efficient trenchless repair technology, mainly used for repairing aged, corroded or damaged pipelines (such as water supply, drainage, oil and gas pipelines, etc.). The core of it is to form a high-strength protective layer on the inner wall of the pipe through composite materials (a combination of non-woven fabric and resin), restoring structural integrity and extending service life. Core advantage.
Trenchless construction : No large-scale excavation is required, suitable for urban underground pipe networks and busy traffic areas. Quick Repair : Short construction period (usually several hours to one day), reducing downtime losses.
Wide adaptability: It can repair circular, elliptical and irregular-shaped pipes with a wide diameter range (DN100 to DN3000).
Durability: The service life can reach 30 to 50 years, resistant to chemical corrosion and wear.
Economy: The comprehensive cost is lower than that of traditional excavation and replacement, and it is especially suitable for pipelines buried deep or in complex environments. Typical application scenarios
Municipal Pipelines : Repair of leakage in old cast iron pipes and concrete pipes.
Industrial Pipelines: Inner lining protection for pipelines transporting corrosive media in chemical plants.
Oil and Gas pipelines : Enhanced repair of local corrosion areas.
Drainage system : To prevent groundwater infiltration or sewage overflow. The laminated non-woven fabric repair technology, through the high performance of composite materials and flexible construction methods, has become one of the mainstream solutions for modern pipeline repair. Its core value lies in restoring pipeline functions with minimal environmental impact, and it is particularly suitable for the sustainable maintenance of urban infrastructure. In practical applications, a comprehensive design should be carried out in combination with the pipeline working conditions, material properties and construction conditions. When necessary, UV curing and local point repair can be combined The improvement effect of complex and other technologies.