Pressure-Injected Resin Fills Cracks and Reestablishes Bedding without Reducing Pipe Diameter.
Janssen Process offers strength and support to deteriorating mainline sections. Fast-curing resins are robotically pressure-injected into pipe cracks, bonding them and filling any cavities around the mainline to eliminate root intrusion and infiltration.
Using Janssen Process, a single truck performs up to 10 point repairs per day. No line plugging or traffic disruption is required, and a 0% installation failure rate means excavation is never necessary. Repair longevity has been documented to 25 years, but is estimated to be 60-80 years. While far more durable than other point repair rehab methods (and thus easier to warranty), this Janssen Process remains cost-competitive in terms of both capital equipment and consumables.
Janssen Process Step-by-Step
A robotic packer is winched into position, where it:
- Isolates and pressure-seals the mainline pipe segment to be rehabilitated.
- Injects a fast-curing resin that bonds cracks and fills the voids behind them.
- Waits 20 minutes for a cure.
- Verifies the result using onboard cameras.
- Is winched to the pipe segment.