ShieldLiner System
What is
Shieldliner®
The ShieldLiner® System is a new trenchless pipe lining technology being developed by Vortex Pipes Limited. Patents for the ShieldLiner® System have been awarded in a number of countries and are pending in a number of others. The ShieldLiner® System lines, seals, repairs and reinforces a pipe in one process step by applying a structural textile liner, generally fibreglass in a resin matrix, to bind with the fibreglass liner to form a composite of the old pipe reinforced with the new liner.
How it works:
- Dry (fibreglass) liner is inverted into pipe with air pressure
- Resin is pumped into resin pool via hoses and ShieldLiner Tool
- Liner is wet out with resin inside pipe
- Resin parts A &B are mixed in ShieldLiner tool and cure at ambient temperature while air pressure is maintained
Benefits for the rehabilitated pipe:
- Liner is firmly bonded to host pipe
- Cracks and voids are filled with resin
- Host pipe and liner become a single "composite" pipe
- Suitable for pressure pipes
a) as Semi-structural liner (i.e. spanning holes and gaps in host pipe)
b) as fully structural liner - Suitable for water pipes (using potable water approved Epoxy resin system)
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Advantages for the Installer:
- No refrigeration and storage life issues as for pre-impregnated liners
- Pressure Chamber eliminates need for inversion towers or large inversion drums
- Tolerant to uneven surfaces (e.g. line over top of deteriorated cement lining in mild steel water pipes)
Visit the Shieldliner Components page for more information on the Shieldliner Tool.
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