ENGINEERED SOLUTIONS A2™ Liner PVC Trenchless Technology PIPE SOLUTIONS

A2™ Liner Restores Deteriorated Sewers Cost-Effective Rehabilitation The increasing rate of sanitary and storm sewer deterioration requires an efficient and cost-effective rehabilitation solution. Contech A2™ Liner uses proven trenchless installation methods to slipline existing sewer lines without the disruptions associated with open trenching—while increasing productivity and lowering costs. Proven Trenchless Installation Methods Dependable Joint Tightness A2™ Liner’s patented gasketed STABJOINT® meets the joint tightness test requirements of ASTM D3212. It is also designed to remain watertight...

A2™ Liner Increases Hydraulic Capacity When reinforced concrete and vitrified clay pipe have offset joints, cracks, spalling or protrusions, there is greater resistance to flow, reducing hydraulic capacity. Significant hydraulic improvements are achieved when these deteri-orated pipes are sliplined with A2™ Liner. Its Manning’s “n” of .009 can actually result in increased flow capacity and higher flow velocities for improved self-cleaning. The Manning equation can be used to determine the flow capacities for circular pipes before and after rehabilitation with A2™ Liner: 8/3 DA2™ Liner n existing...

A2™ Liner Installation Procedures Table 2 Safe Compressive/Jacking Loads and Pushing Distances for A2™ Liner Sliplining Considerations • Inspect and clean the existing pipeline and verify the liner clearance prior to sliplining. • Remove any obstructions, protrusions, joint offsets, debris, out-of-roundness or other irregularities that could damage or prohibit passage of the liner pipe. • Install the liner pipe by either pushing or pulling it through the existing pipe. The leading pipe spigot end is usually fitted with a nose cone to help the liner pipe ride over small joint misalignments and...

A2™ Liner Rapidly Renovates Culverts In addition to repairing sanitary and storm sewers, the design features of A2™ Liner design features make it the obvious choice for relining distressed culverts. The corrugated exterior design provides high strength and high stiffness without the additional weight of solid wall pipe alternatives. A2™ Liner’s lightweight design, coupled with a unique gasketed STAB-JOINT, makes joining easy. Lubricant, two chains and one or two come-alongs are usually all that is required to join sections. The light, easy-to-handle sections allow for maneuvering in tight workspaces....

A2™ Liner Product Details Table 3 A2™ Liner Sizes & Dimensions Nominal Pipe Diameter (inches) Inserta Tee® Fitting A2™ Liner is available in standard lengths of 10 and 20 feet. 2.5-feet lengths are available for insertion via manholes. 20’ or 10’ Standard Laying Length Either INSERTA TEE® or saddle tee fittings allow easy-to-make connections for A2™ Liner. Saddle tee fittings employ stainless steel fasteners. Saddle-Tee Fitting A2™ Liner’s patented STAB-JOINT coupler fits flush with the outer wall surface for eas

PVC Corrugated Sewer Pipe with a Smooth Interior for Sliplining Installation PART I GENERAL: 1.01 PVC PROFILE WALL SEWER PIPE This specification covers PVC Corrugated Sewer Pipe With a Smooth Interior for Sliplining Applications. 1.02 REFERENCES A. ASTM F949—Standard Specification for Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe With a Smooth Interior and Fittin gs. B. ASTM D3212—Standard Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals. C. ASTM D1784—Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl...

ENGINEERED SOLUTIONS Contech® Engineered Solutions provides innovative, cost-effective site solutions to engineers, contractors and developers on projects across North America. Our portfolio includes bridges, drainage, erosion control, retaining wall, sanitary sewer and stormwater management products. STORMWATER SOLUTIONS PIPE SOLUTIONS STRUCTURE SOLUTIONS Contech Engineered Solutions provides site solutions for the civil engineering industry. Contech’s portfolio includes bridges, drainage, retaining walls, sanitary sewer, stormwater, erosion control and soil stabilization products. For more...