GRP Patch Repairs

GRP patch repairs

A perfect start into No-Dig business.
The Packer repair system is a sectional or point repair method for all types of wastewater and sewer pipes. The system uses silicate resins and chemically resistant CRF+ glass fiber.

How the Packers works

A renovation packer carrying a resin-wetted 3-layered glass fiber may construction wrapped-around is pushed with the help of air push rods or pulled by means of a rope to the point of repair.

The exact position of the point in need of repair is determined by CCTV inspection.

How the Packers works

A permanent bond between the fiberglass mat and the host pipe wall

When the Packer has reached the correct position. It is gradually inflated by means of compressed air.

This causes the packer to expand towards the pipe wall and press the impregnated glass fiber mat in a tight fit against the host pipe with excessive reaction resin penetrating into the damage.
This creates a permanent bond between the glass fiber mat and the host pipe wall.

A Pipe-In-pipe system

The resin-impregnated glass fiber mat will be cured at ambient temperature according to the resin manufacturer’s instructions. The required cure times depend on the climatic conditions in the sewer. After complete cure of the reaction resin, the packer is deflated and removed from the pipe.
The cured glass fiber mat covers the full area of the repaired pipe section without obstructing the service flow. The Pipe-in-pipe system thus created forms an integral system with the host pipe and fully meets the hydraulic requirements.

A Pipe-In-pipe system

Benefits

The components of the Packer process bond to all kinds of pipe material, i.e. vitrified clay, GRP, HDPE RCP, plastic, steel etc.
Excellent performance at extreme temperatures weather hot and cold.
Quick and easy installation.
No volatile organic compounds ( VOC ) ( styrene-free)
Virtually no shrinkage (<0.6%)
Tested to services life of 50+ years ( 10,000-hrs test )
Available in diameters from DN 100 – DN 1200mm(multiple size, e.g. DN 150 – 250)Maximum repair length – depending on packer size – from 560 to 4630 mmFlexible packers allowing easy installation from the manhole into the pipeAdjustable wheelsets for centering the packer in the pipe for obtaining uniform resultsLow maintenance and repairable
Short Packers
Rigid design for specific use with larger service flowsAvailable in diameters from DN 100 – DN 1200mm(multiple size, e.g. DN 150 – 200)Maximum repair length – depending on packer size – from 605 to 670 mmAdjustable wheel-sets for centering the packer in the pipe for obtaining uniform resultsBypass modelLow maintenance and repairable
Long Packers
Available in the sizes DN 200 – DN 1000mmMax. repair length – depending on packer design – from 200 to 4565 mmVery low weightThis very flexible packer can be easily introduced through DN 600 manhole lids.They can be positioned with push rods or pull rope.No wheelset or bypass required, special assemblies available on request.

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