SPR™ Spiral Wound Lining
32″ – 200″+ Pipe Lining
Round & Non-Round Shapes
100% Trenchless
SPR™ PVC Liner
32" - 200"+ Pipe Lining
Round & Non-Round
100% Trenchless
The Round & Non-Round Liner for Large Diameter Pipe Rehabilitation
SPR™ is a Spiral Wound pipe lining method for large diameter sewers, storm drains and culverts. SPR™ lines both round and non-round shapes, providing fully structural rehabilitation.
The PVC profile strip is wound into the pipe by a traverse winding machine. The machine travels the length of the pipeline while constructing the liner at a fixed diameter. Grout is then introduced to fill the annular space; either part of the structural liner or just as a gap filler to uniformly transfer loads onto the liner. Grout type depends upon dimensions of the pipe and overall project conditions.
SPR™ Trenchless Lining Process
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The Large & Non-Round Liner
SPR™ lining occurs along a guide-frame constructed to mirror the pipeline’s shape. These shapes can be anything from a box, horseshoe, teardrop, arch etc. The SPR™ machine traverses the pipe while pulling PVC profile along to construct the trenchless pipe liner.
Once winding is completed, grout (either structural/non-structural) is introduced between the liner and host pipe. Grouting occurs in lifts through ports installed within the liner. Once grouting is finished, the end result is a fully structural rehabilitated pipe.
Sewer Pipe Lining
Storm Drain Lining
Culvert Lining
SPR™ Lining Process
The SPR™ Spiral Wound process is a trenchless rehabilitation solution for restoring the hydraulic efficiency, reliability, and integrity of aging sewers, storm drains, and culverts. SPR™ lining occurs along a guide-frame constructed to mirror the pipeline’s shape. These shapes can be anything from a box, horseshoe, teardrop, arch etc. The SPR™ machine traverses the pipe while pulling PVC profile along to construct the trenchless pipe liner.
Once winding is completed, grout is introduced between the Spiral Wound liner and host pipe. Grouting occurs in lifts through a series of ports installed within the liner. Once grouting is finished, the end result is a fully structural rehabilitated pipe.
Trenchless Lining Methods
3 Spiral Wound installation methods based upon pipe diameter
SPR™EX is a tight-fit liner suitable for small-diameter sewers, storm drains, and culverts. It does not require annular space grouting.
The PVC profile is wound directly into the host pipe by the hydraulic winding machine in the access chamber.
SPR™TF/RO is a trenchless pipeline rehabilitation method for mid-range diameter sewers, storm drains, and culverts that does not require annular space grouting.
This method uses two different winding machines that traverse the pipeline while constructing a tight-fit liner.
SPR™ is used to repair large round and non-round sewers, storm drains, and culverts.
The PVC profile is wound into the pipe by a traverse winding machine, and then grout fills the annular space.
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