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Water Main & Pressure Pipe CIPP

As pipes reach the end of their useful life, Cured-In-Place Pipelining (CIPP) offers a
proven trenchless repair of aged, deteriorated, and neglected
watermain and pressure pipes with a minimum 50-year design
life. Liners meet or exceed ASTM1216 Standards and is NSF/ANSI
61 Certified. Pressure rated and a fully structural AWWA Class IV
solution, CIPP provides cost savings through the prevention of
costly emergency pipeline repairs. With a Hazen-Williams
Coefficient > 120, the composite liner protects the quality of
drinking water and is suitable for a variety of host pipes including
cast iron, steel, ductile iron, asbestos cement, and reinforced concrete pipe.

How Does CIPP Work?
After installing access pits and the bypass. A resin impregnated flexible tube is
inverted inside of the existing pipe using air through. Once the tube is completely installed and inflated, it is cured by adding heat to the interior of the pipe. The heat causes a reaction within the resin that leads to polymerization, or hardening, of the resin into a full structural replacement of the existing pipe. Service connections are then reinstated using a robotic cutter.

The Benefits of CIPP:

• Accommodates bends, joints, and constrictions.
• More corrosion resistant than PVC.
• Service connections reinstated without digging.
• Watertight composite liner.
• Line sizes 6-inches +
• Our Potable Water Liner is NSF certified. 


CIPP Fact:
Our Crews have installed more than 4 million feet of CIPP liners for municipalities and private industries, making Hoerr Construction one of the most reliable and experienced CIPP contractors in the Midwest.