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Frank Sayler
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SPR™
Large diameter trenchless pipe renewal

SPR™ is a spiral wound trenchless pipeline renewal process designed for the rehabilitation of large diameter pipelines up to 5000 mm. SPR™ utilizes steel reinforced interlocking PVC profile strips grouted in place with a high compressive strengths grout.

The installation equipment can be utilized via standard access points without site excavation. The Japanese SPR™ technology can also be installed in vertical applications such as wet wells, access shafts and other large diameter structures.

The SPR™ process is unique as it can provide a customized structural solution to aging pipelines. It can be engineered to correct hydraulic anomalies as well as restore the slope of the original pipe.

The interlocking edges of the profile create an impermeable mechanical lock that can withstand strong deformational forces. SPR™ liners have been tested in accordance with industry standards and meet or exceed the standards for spiral wound PVC Profile Wall Liners ASTM F 1697 and ASTM F 1741. It is also approved according DIBt.
Benefits of SPR™ at a glance
• Rehabilitation of large diameter pipes (800-5000 mm)
• Rehabilitation of circular, non-circular and custom shapes
• Truly trenchless – requires only standard manhole entry
• Designed for installation in live flow conditions
• Negotiate curves and bends
• Improved flow with smooth PVC material
• Environmental-friendly installation and application
• Over 400 km successfully installed world-wide

Rehabilitation of bends


Download Brochure
SPR Technologies
[PDF, 1.0 MB]

Download Case Study
City of Los Angeles report on SPR
[PDF, 442.9 KB]

Video
SPR technologies SPR™
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