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About PolyFlex & PolyFold
PolyFold Installation
PolyFlex Installation
Why PE 100 (4710)?
Product Comparison
Testing & Certification

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PolyFlex™ & PolyFold® - Pressure Pipe Systems

About PolyFlex™ & PolyFold®

PolyFlex™ and PolyFold™ polyethylene liners are ideal for transmission and distribution water mains

PolyFold® Installation

Insituform^® PolyFold™ installation, step-by-step

PolyFlex™ Installation

Insituform^® PolyFlex™ installation, step-by-step

Why PE 100 (4710)?

Durable PE 100 (4710) pipe provides numerous benefits including tensile strength and resistance to damage, cracking and crack propagation.

Product Comparison

See how Insituform^®PolyFlex™ and PolyFold® stack up against other pipe rehabilitation systems

PolyFlex™/PolyFold® Brochure

PolyFlex™/PolyFold® Brochure - metric

Insituform Technologies®, Inc. is a provider of small, medium, and large diameter cured-in-place pipe (CIPP) products for the rehab of storm sewer, sanitary, and gravity pipe systems, including iplus Composite™. Insituform Blue® provides solutions for pressure pipes and potable drinking water pipeline systems, including iTap®, Polyflex™, Polyfold®, and Thermopipe®. United Pipeline Systems offers gas and oil pipeline rehabilitation with Safetyliner™ and Tite Liner®, the world’s leading HDPE (high-density polyethylene) lining systems. Insituform’s mission is to enable Clean water for the world through trenchless (no-dig) pipeline rehabilitation.