Osma UltraRib is a corrugated PVC-U pipe system designed for gravity drainage and sewerage installations up to 10m deep. Made from PVC-U, it features a smooth inner surface and external concentric ribs for strength and rigidity. The system includes fully socketed pipes and fittings for secure, easy installation and reliable jointing.

  • Corrugated PVC-U pipe system for gravity drainage and sewerage

  • External concentric ribs increase axial rigidity and radial strength

  • Smooth inner bore improves hydraulic flow and reduces blockage risk

  • Fully socketed design with secure, leak-resistant joints

  • Flexible structure tolerates ground movement

  • Fewer joints due to close manufacturing tolerances

  • Resilient to maintenance activities

Applications

  • Underground gravity drainage

  • Sewerage systems

  • Foul water transport

  • Surface water drainage

  • Installations requiring flexibility and strength

  • Projects with ground movement risk