SPR™ is a spiral wound trenchless pipeline renewal process designed for the rehabilitation of large diameter pipelines up to 5500 mm. SPR™ utilizes steel reinforced interlocking PVC Profile strips grouted in place with a high strength 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. Circular, non-circular, and even custom shapes can be rehabilitated.



  • Large diameter 800mm – 5500mm
  • Circular or custom shapes
  • Installation in live flow
  • Follows curves & bends
  • Improve flow
  • Environmentally friendly