Construction and Engineering Controls to Manage Risk in Small Diameter UV Pipe Lining (WWETT Show 2023)

March 23, 2023

Small diameter (2" to 8") UV CIPP lining poses unique challenges, opportunities, and technology differences from the more familiar sewer main lining with UV CIPP. This presentation specifically discusses the "state of the practice" capabilities and limitations of UV CIPP technologies in small diameters. Materials, Equipment, and Methods are discussed including pull-in-place, inversion, various available tube construction, available resins, pipe assessment and cleaning, curing technology, branch reinstatement, and connection lining technologies. Understanding the role of UV irradiance requirements and the performance differences between LED and halogen bulbs will be discussed. Referencing real world project experiences, the presentation outlines key good practices and engineering controls that can help to control associated project risks.

Learning Objectives:

1. Review the current "state of the practice" capabilities and limitations of available small Diameter UV Pipe Lining technologies   

2. Discuss good practices that control construction risks    

3. Analyze examples of performance-based specification measures and inspection practices that can provide improved design control over project risks

Speakers:  Tom Bowman, President at NuFlow Technologies; Grant Whittle, Technical Director at Nu Flow Technologies

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