CURED IN PLACE PIPE LINING (CIPP)

What is CIPP

A cured-in-place pipe (CIPP) is a trenchless rehabilitation method used to repair existing pipelines. It is a jointless, seamless pipe lining within an existing pipe. As one of the most widely used rehabilitation methods, CIPP has applications in sewer, water, gas, chemical and district heating pipelines ranging in diameter from 0.1 to 2.8 meters (2–110 inches).

The process of CIPP involves inserting and running a felt lining into a preexisting pipe that is the subject of repair. Resin within the liner is then exposed to a curing element to make it attach to the inner walls of the pipe. Once fully cured, the lining now acts as a new pipeline.

Installation Procedure

• Remove roots from the pipe (if necessary) and flush debris from the pipe.
• Set up a sewer bypass system to re-route wastewater to other nearby pipes during the pipe lining process
• Install pipe plugs and pump equipment
• Pre CCTV inspection and review
• Insert liner into the sewer pipe from the surface through a manhole
• Inflate liner to conform tightly to existing structure
• Expose the liner to ultraviolet light to cure and harden the liner inside the pipe
• Open and reinstate sewer service lateral connections that were covered by the pipe lining with robotic cutting device
• Remove the bypass system
• Post CCTV inspection. Conduct quality control inspections

ADVANTAGES TO USING UV Cured CIPP:

• Higher mechanical properties
• Thinner laminate
• Structural integrity
• Corrosion resistant
• Minimal traffic disruption
• Convenient installation
• Environmentally safe