Clock Spring is a composite repair sleeve and reinforcement system uniquely designed for high-pressure transmission pipelines.
Clock Spring was verified through the most comprehensive pipeline repair study ever commissioned. The 10-year, $15 million study by the pipeline industry and conducted by the Gas Research Institute, makes the patented Clock Spring the most tested, investigated, and documented composite repair solution ever developed. Our strongest pipe repair, the Clock Spring, has been tested and proven up to 8,000 psi and is expected to last 50 years or longer, deeming it a permanent repair by regulators. The Clock Spring is used in all environments in more than 75 countries around the world.
The Clock Spring solution benefits your business, safety, and the environment:
Extensive external corrosion of up to 80% metal loss on 12’ bend radius either side of canal crossing.
Extensive external corrosion over a complete 10m joint length also affecting a girth weld location.
The defect is external corrosion with wall loss of 40%. Tees are located both before and after the defect. A 3” pipe hangs above the repair section with a tight clearance of only 3 inches.