: Lateral: Lateral Lining
Key Features
The Performance Liner Lateral System is a unique cured in-place process that allows the installer the freedom to position the liner anywhere in the pipe by inserting through a cleanout. The liner can be directed either upstream or downstream using LMK's patented guide shoe. LMK's Lateral system is truly a zero dig situation for renewing lateral pipes since the entire process can be completed through a cleanout. Gasket sealing "O" rings are placed at the upstream and downstream ends of the liner providing a verifiable non-leaking lateral liner that is compatible with all types of piping. LMK's lateral liners also include compressible material at the upstream end of the liner producing a smooth tapered transition to the old pipe. This process renews laterals from 4 to 8 inches in diameter in continuous lengths up to 130'. Inversion tanks come in two sizes (36" or 18") and are equipped with a camera port so the liner can be visually inspected under pressure for proper placement prior to the liner being cured.
- Line through a cleanout upstream or downstream
- Inverted anywhere in the pipe
- ISGL™ Liner Zero Stretch
- Superknit negotiates multiple 90° bends
Compressible Material on Lateral Tubes
A strip of Compressible Material which compresses to nearly a zero thickness is used to form an engineered taper by which provides a smooth transition for maximum flow rate.
Hydrophilic O-Rings on Lateral Tube
A hydrophilic O-ring is incorporated at the upstream and downstream ends of the lateral liner tube. This swelling gasket is embedded between the liner and the host pipe. This 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 lateral lining.
Continuous Lateral Tube
The Performanceliner® cured in-place lateral lining consists of a one- piece continuous lining. The liner is resin saturated all at the same time 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 Lateral Liner incorporates a structural full-circle tube having proper wall thickness for each pipe diameter.