A2 Liner provides a tremendous cost savings over cured-in-place pipe—up to 50% depending on the installation. Relining with A2 Liner eliminates costly bypass operations because normal flow is maintained. Additionally, sliplining with A2 Liner gives you a new pipe with direct-bury strength of 46 psi stiffness—which means it doesn’t depend on the host pipe for long-term structural performance as cured-in-place liners do. Plus, the double-wall design provides extra stiffness for improved shape-control during installation and grouting.
With a Manning’s “n” of .009, A2 Liner Pipe restores hydraulic capacity of reinforced concrete and vitrified clay pipes with offset joints, cracks, spalling or protrusions. Its glossy-smooth interior allows the relined pipe to carry as much or more flow than the existing host pipe, even with diameter reductions
CONTECH provides A2 Liner in 12-36 inch diameters and lengths of 10 and 20 feet. Custom lengths as short as 2.5 feet are available for installation within small insertion pits or manholes. Field installations demonstrate that workers can slipline with A2 Liner Pipe at a rate in excess of 200 feet per hour. And because it is lightweight, you can use smaller, less expensive equipment for handling and joining—yet another savings.
A2 Liner Pipe’s patented gasketed STAB-JOINT® meets the joint tightness test requirements of ASTM D3212. It is also designed to remain watertight up to 5 degrees angularity. Unlike other gasketed joints for segmental sliplining, the A2 Liner STAB-JOINT ensures a positive connection even when sliplining misaligned, obstructed or curvilinear sewers. Additionally, this joint system incorporates a PVC coupling that maintains a constant outside and inside diameter.
Manufactured exclusively from low fill, cell class 12454 PVC compound—the most widely accepted sewer pipe material—A2 Liner Pipe provides excellent durability and resistance to abrasion. It withstands corrosive attack from both acidic and alkaline soils and is unaffected by chemicals found in normal sewage.