Cured in Place Pipe (CIPP) Wiki

cured in place pipe

CIPP is one of the most popular pipe rehabilitation methods because it can be performed on numerous types of pipes and pre-existing manholes with no added excavation. Cured in place pipe can be applied to a wide range of pipes including non-circular, pipes with many bends, multiple offset points, and misaligned joints.

What is cured in place pipe (CIPP)?

Cured in place pipe (CIPP) trenchless rehabilitation allows for a new pipe to be installed inside of old, damaged pipe and is a very cost effective way to rehabilitate infrastructure when compared to other dig and replace methods.

Cured in place pipe (CIPP) rehabilitation requires a flexible liner (felt or fiber sleeve) be impregnated / adjoined with thermosetting resins and placed into existing pipe. The flexible CIPP liner can be inserted into the host pipe using a winch or several other different methods depending on the application and project purpose.

Once the CIPP lining is in place the lining is inflated until it fits tightly into the host pipe. After a snug fit is properly established, the thermosetting resin within the lining is activated using hot water or steam.

The pipe must then cure and fully harden before the pipe can be put back into service.

Why is cured in place pipe (CIPP) important?

CIPP repairs are perhaps the most versatile forms of infrastructure repair. Because of this versatility, cured in place pipe repairs account for half of the sewer line rehabilitation market and also makes up one-eighth of the potable water pipe rehabilitation market. CIPP repairs are also long-lasting and are typically designed for up to 50 years of service and are best used for pipes that do not require much structural reinforcement.

The length of serviceable time is dictated by the condition of the host pipe prior to repair. Although CIPP lining does reduce the inner diameter of the pipe, the smooth surface will generally improve flow rate.

Note: The host pipe requires heavy preparation prior to service and preparation should be completed by a professional. The host pipe must first be surveyed, cleaned, pre-grouted, and bypass pumping must also be performed.

Did you know: Vortex Companies offers a variety of cured in place pipe solutions to make your next CIPP repair project run smoothly. Contact us to help you select the best provider(s) in your area to perform cured in place pipe rehabilitation.

Additional Resources:
https://en.wikipedia.org/wiki/Cured-in-place_pipe
https://www.mswmag.com/editorial/2018/01/cured-in-place-pipe-rehabilitation-basics

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