Permanent Composite Sleeve repair using Clock Spring | NRI

The Clock Spring composite repair sleeve and reinforcement system is uniquely designed for high-pressure
transmission pipelines for providing a “permanent” repair solution.

It is the most tested, investigated, and documented composite repair solution ever developed and has earned
its place as the industry’s most trusted composite repair system wit 1,000,000 + installations in more than 75
countries in practically every environment for more than 3 decades.

Clock Spring NRI, USA

World leaders in “permanent” repair of pipelines using composite sleeves - guaranteeing 50+
years of repair service!

Clock Spring is an engineered repair service for permanent reinforcement of corrosion defects associated
with high pressure transmission pipelines and pipeline frameworks. It is applicable on defects like General
Corrosion, Pitting Corrosion, leaks, bend repairs, weld defects etc.

Why is Clock Spring better than welded sleeves? Explore More
Case studies of Clock Spring Explore More

Different products available for different operating conditions:

Composite Sleeves: 50-year DOT approved repair system for high pressure transmission pipelines. Restores
full strength to pipelines with up to 80% external wall loss with no upper pressure limit.

AE has installed 100s of Clock Spring through our certified installers for almost all Indian pipeline owners.

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