State of Technology Report for Force Main Rehabilitation, Final ...

Technology/Method Close - Fit Lining/Expandable PVC
Installation Standards Not Available
Installation
Methodology
• Minimal excavations are performed.
• Duraliner is fused to length for the project.
• Duraliner TM is expanded tightly against the interior walls of the host pipe.
• Exposed ends of the Duraliner are expanded to standard fitting sizes.
• The new Duraliner is cut to length and reconnected to system.
• Fused Duraliner is inserted into cleaned, inspected host pipe.
QA/QC Not available
IV. Operation and Maintenance Requirements
O&M Needs As Duraliner is expanded molecular reorientation increases its hydrostatic
design basis. This works toward offsetting the DR increase from expansion in
Repair Requirements
for Rehabilitated
Sections
the pressure rating.
Not available
V. Costs
Key Cost Factors Not available
Case Study Costs Not available
References
VI. Data Sources
Website for Underground Solutions Inc.
A-31