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Insituform® PPL – Pressure Pipe Liner
The trenchless solution to pressure pipe leakage and corrosion
 Your damaged pressure pipe system needs a solution that is specially designed to withstand the operating pressure and thermal stresses during your system’s operation. InsituMain™ is an advanced, proven and non-disruptive technology that will extend the useful life of deteriorated and leaking pressure pipes. And because it requires limited access and is installed by experienced Insituform® safety-certified teams, there is minimal disruption to system or plant operations.
InsituMain™ is a custom-engineered, cured-in-place pipe (CIPP) product designed to eliminate leakage and prevent internal corrosion and/or erosion in structurally sound pressure pipe. InsituMain™ is designed with the flexibility to expand up to and transfer internal pressure loading to the host pipe while maintaining the ability to span any small holes, pits or open joints that may exist in the host pipe. The InsituMain™ design assumes that the host pipe is currently structurally sound and will continue to carry the internal pressure loading for the life of the piping system.
 InsituMain™ is the solution for your pressurized pipe system:
• Diameter ranges from 8 inches to 60 inches
• Suitable for cast/ductile iron, steel, asbestos cement, RCP and thermoplastic pipes
• Thin wall and close fit minimizes reduction in flow cross section
• Flexibility to negotiate horizontal and vertical bends up to 90°
• Small site footprint required for installation
• Installed inside the existing main so there is no risk of damage or disturbance to adjacent utilities or infrastructure
• Trenchless installation reduces traffic and commercial disruption, site noise, pollution and safety concerns as well as the need for imported backfill and pavement reinstatement
• Rapid installation reduces the duration of the project along with the associated costs and impact
Structure
InsituMain™ has a construction similar to that of standard Insituform® CIPP tubes. However, special glass reinforcement is included to address specific service conditions found in pressure applications. The resin system for InsituMain™ is either a vinyl ester or an epoxy, depending on the application. For drinking water applications, a special epoxy resin system is available for use.
Applications
InsituMain™ can be used on many different pressure systems:
• Cooling water lines
• Fire water
• Process lines
• Sewage force main systems
• Drinking water systems
How InsituMain™ is Installed
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