Internal Sleeves for Trenchless Sewer Rehabilitation

Circum Features:

  • Permanent sealing according to a purely mechanical principle
  • Packer-friendly thanks to external lock
  • Minimal cross-section reduction in the duct and no protruding obstacles
  • High-quality stainless steel sleeve (DIBt-approved) without corrosion
  • Quick installation saves working time
  • Installation without environmentally harmful lubricants
  • Effective and sustainable renovation without earthworks
  • Completely assembled and ready for installation

Circum – a new type of rehabilitation system for trenchless sewer rehabilitationThe innovative feature: damaged areas are effectively and permanently sealed from the inside, without any earthworks. The high-quality and corrosion-free stainless steel rehabilitation sleeve can be installed quickly and easily within minutes. The system is suitable for small to large diameters: different diameters and sealing methods are available for each application.

The inner sleeve adapts perfectly to the contour of the inner pipe wall and thus permanently seals the damaged area. The patented external seal of the rehabilitation sleeve prevents any debris flowing past it from sticking to it. Free from environmentally harmful lubricants!