PRESSURE PIPELINE REHABILITATION

• In order to inflate the liner or to give it its final round shape, sealing balloons are used to close the beginning (pit 1) and end (pit 2) of the liner.
• At an internal pressure of 0.5 bar (approx. 7.3 psi) or higher, the adhesive tapes (maintaining the u-shape) begin to break. All of the tapes will have opened at a maximum internal liner pressure of 1 bar (approx. 14.5 psi).
• One of the sealing balloons features a bypass. Oil-free compressed air has to be blown into the bypass and from there into the liner.
•  After inflating the liner, the liner can be cut to a length of 1m (approx.3.3 feet) projecting the host pipe in both the starting and destination pits. The 1m (approx. 3.3 feet) of projecting end of liner is required to install the connectors.

PRESSURE PIPES INSTALLATION

BENEFITS