A2<suo>™ Liner Pipe</suo>

A2™ Liner Pipe

Proven trenchless installation to slip line existing sewer lines without the disruptions associated with open trenching.
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Trenchless Slip Lining Technology for the Rehabilitation of Sanitary and Storm Sewers

Manufactured exclusively from low fill, cell class 12454 PVC compound, the most widely accepted sewer pipe material, A2 Liner Pipe withstands corrosive attack from both acidic and alkaline soils and is unaffected by chemicals found in normal sewage.

Relining with A2 Liner Pipe provides up to 50% cost savings over cured-in-place pipe. A2 Liner Pipe eliminates costly bypass operations because normal flow is maintained. It also 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.

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.

Construction crews can slip line 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.

A2 Liner Pipe’s patented gasketed STAB-JOINT® is designed to remain watertight up to 5 degrees angularity and ensures a positive connection even when slip lining misaligned, obstructed, or curvilinear sewers.

A2 Liner Pipe Features and Benefits

Features Benefits

Manufactured from low fill, cell class 12454 PVC compound

Superior corrosion and abrasion resistance

Direct-bury strength of 46 psi stiffness

Doesn’t depend on the host pipe for long-term structural performance

Manning’s “n” of .009

Allows the relined pipe to carry as much or more flow than the existing host pipe, even with diameter reductions

Patented, gasketed STAB-JOINT

Meets joint tightness requirements of ASTM D3212 and is designed to remain watertight up to 5 degrees angularity

Lightweight

Workers can slip line at a rate in excess of 200 feet per hour

A2 Liner Pipe Properties

  • Available in 12” – 36” diameters
  • Standard lengths are 10’ and 20’
  • 2.5’ feet lengths are available for insertion via manholes

A2 Liner Joints

  • Patented gasketed STAB-JOINT® meets the joint tightness test requirements of ASTM D3212 and is designed to remain watertight up to 5 degrees angularity
  • Ensures a positive connection even when slip lining misaligned, obstructed, or curvilinear sewers
  • Incorporates a PVC coupling that maintains a constant outside and inside diameter

A2 Liner Applications

  • Rehabilitating storm sewers, sanitary sewers, and small culverts

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CMP and PVC Pipe for Pipe Reline

Lining inadequate or failing structures with corrugated metal material or plastic pipe uses little of the available area, thereby preserving the maximum amount of the original opening. Due to the hydraulic efficiency of Contech products, often a smaller structure provides the same hydraulic capacity as the original because of the low Manning “n” factors of A-2000 and A2 Liner PVC pipes and HEL-COR and ULTRA FLO CMP pipes. Existing pipes and arches are generally lined with structures of the same shape, though slightly smaller in size. Rectangular openings can be lined with round, elliptical or pipe arch structures. Corrugated metal structures can fit almost any existing shape.

CMP and PVC Pipe for Rehabilitating Storm, Sanitary Sewers and Small Culverts

Reline drainage structures with hydraulically efficient corrugated steel, aluminum or PVC pipe. ULTRA FLO and HEL-COR are CMP Pipes available in standard diameters through 120” and 144" respectively. Special diameters are also available in both products. The PVC pipe systems, A-2000 and A2 Liner Pipe—used for both drainage structures and sanitary sewers—are available through 36” diameter.

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