Trenchless lining pipe repair technology

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Leaks in underground pipelines and thinning due to corrosion result in significant production losses; repair methods involving excavation are costly and time-consuming, and they do not address the issue of pitting corrosion. The trenchless lining pipe repair technology is mature and features a short repair period. Its current applications include: 1) the repair of drinking water pipelines – it is safe and hygienic, capable of handling diameters up to 1200 mm, with a service life of over 50 years; each pipeline segment can be up to 5 km in length. II. Repair of thermal pipelines: capable of withstanding high temperatures of 150 degrees, resistant to hydrolysis and corrosion, with a short construction period. Natural gas pipeline repair: resistant to hydrogen sulfide corrosion, smooth inner surface, and no wax formation. III. Pipeline repair: highly corrosion-resistant; repair of the original pressure system – 5 km per pipeline – which can extend its lifespan by 30 years.