SPR®PE
Sliplining Made Clever
RIBLINE®
Product Overview
SPR®PE technology, incorporating the Ribline® spirally wound system by RIB LOC®, is a solution for restoring the hydraulic efficiency, reliability and integrity of aging sewers, storm drains and culverts.
The fully encapsulated steel reinforcement is designed to provide a liner of optimum stiffness for the application.
SPR®PE / Ribline® liners can structurally rehabilitate brick, concrete, glass reinforced plastic or corrugated metal sanitary sewer and stormwater pipelines with diameters from 900 mm (36 inch) to 3000 mm (120 inch).
The plastic profile that forms the liner is provided in a range of sizes. The profile is reinforced with steel that is completely encapsulated within the HDPE material. The steel reinforcement is selected to provide a liner with sufficient stiffness to meet the design requirements of the project.
Features and Benefits
Flow advantages
- Hydraulically efficient, smooth bore with circular cross section.
- Usually greater hydraulic capacity than the host pipe.
A strong flexible liner
- Can be designed as a structural liner, a range of HDPE and steel combinations are available to meet design requirements.
- Structurally efficient circular cross section – even when the host pipe is misaligned.
- Constant wall thickness even when negotiating voids in the host pipe.
- Factory manufactured and machine installed, liner installation does not depend on the standard of workmanship in difficult conditions.
Fast installation with minimum community disruption
- Rapid set up, safe work sites and low noise during construction.
- No need to excavate launch pits or store pipes on-site.
- Small support vehicles – less disruption of traffic.
- Can operate with some flow in the existing pipe, up to 25% subject to velocity and safety considerations.
- Installation possible from difficult to reach access chambers – support vehicles and equipment can be placed remotely.
Proven pipe material
- Made from a similar grade of HDPE as new sewer and drainage pipe.
- Cell Classification of 335420C (or E) in accordance with ASTM D 3350.
- Profile sealing is achieved by extrusion welding to produce a continuous jointless HDPE liner.
- Consistent material properties. The pipe strength does not rely upon the grout for its strength, only to transfer the load to the liner.
Process Overview
Easy mechanical installation
The deteriorated pipeline is first cleared of debris and obstructions, cleaned and inspected, the diameter measured and then proved. The winding machine is lowered to the base of the access chamber through standard maintenance hole openings. The reinforced HDPE profile is fed into the machine from an above ground spool.
The winding machine then winds the reinforced HDPE profile to form a new pipe. The process continues until the liner wound by the SPR®PE / Ribline®winding machine reaches the end of the pipeline length to be rehabilitated. The ends of the liner at both access chambers are sealed and rendered to make them smooth with the host pipe.
The annulus between the fixed diameter liner and the host pipe can be filled with cementitious grout immediately after the winding is completed.
Project Experience
SPR®PE / Ribline® has been used to rehabilitate sewers, stormwater lines and culverts around the world. It has been proven capable of providing a structural liner for severely deteriorated pipelines, and has been installed under difficult site conditions with minimal community disruption.
