FiReP® HIPPREX® is an FRP tube with an integrated packer function for the high-pressure injection of a weathered rock mass. The high torque hollow bar is fitted with an expansion packer and integrated with 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 FRP system allows cutting during the heading or mining of ore.
Rapid heading will not be delayed. Lightweight makes handling easy, even in confined underground conditions.