GFRP High-Pressure Injection Bolt
FRP tubes with integrated packer function for high-pressure injection of weathered rock mass
- Stabilization of fractured rock and mineral
- Rapid heading
- Confined underground conditions
- Permanent application
FiReP® HIPPREX® is a GFRP Tube with an integrated packer function for high-pressure injection of the weathered rock mass. The high torque hollow bar is fitted with an expansion packer and an integrated no-return valve. Two additional valves are fitted to both ends of the tube, the top valve to open when the packer is inflated, the bottom valve to prevent backflow after injection. The GFRP system allows cutting during heading or mining of resources. Rapid heading will not be delayed. Lightweight makes handling easy, even in confined underground conditions.