LMK Performance Liner - Sectional Inversion Process Renews Pipes

Resin comes in contact with the pipe only at the point of repair and migrates into fractures and open joints creating a mechanical lock. Unlike other less precise systems, air pressure is never dropped, which would allow jarred sections of pipe to collapse onto the liner causing further damage and a potential dig. Other 2-step inversion systems also have an uneven resin distribution from the crown to the invert of the pipe. Performance Liner Sectional Repairs are a one-step, long-term, CIPP solution.

Hydrophilic O-Rings on Sectional Tube
A hydrophilic O-ring is incorporated at the upstream and downstream ends of the sectional liner tube. This swelling gasket is embedded between the liner and the host pipe. The hydrophilic O-ring expands 3 to 5 times its original size in the presence of water. The full-circle compression gasket provides for a verifiable non-leaking liner and is compatible with all types of piping. Compression gaskets have been used extensively in bell and spigot pipe joining applications for many years and are now available for cured in-place sectional lining.

Continuous Sectional Tube
The Performanceliner cured in-place sectional lining consists of a one piece continuous lining. The liner is resin saturated and cured all at the same time, producing a one-piece homogenous cured-in-place pipe.

Full Circle Design
Just like direct bury pipes, CIPP linings are designed from calculations based on physical properties of the CIPP, the depth of pipe being renewed, pipe diameter and soil/hydrostatic loading. The key element in the design calculation is the CIPP being formed as a “tube or cylinder.” LMK’s Sectional Liner incorporates a structural full-circle tube having proper wall thickness for each pipe diameter.

Compressible Material on Sectional Tubes
The liner material compresses to a standard specified thickness and is used to form an engineered taper which provides a smooth transition for maximum flow rate.