Considerations for Designing the Outer Diameter of FFRP Liners in Pressure Pipe Rehabilitation
- Marissa Watkins
- 11 minutes ago
- 1 min read
Introduction
"In the field of pipe rehabilitation, Flexible Fabric Reinforced Pipe (FFRP) liners have emerged as a popular solution for restoring the integrity and hydraulic performance of deteriorating pipelines that are structurally intact. Determining the appropriate outer diameter (OD) of the FFRP liner is a critical consideration that requires careful attention. This article delves into the importance of selecting the appropriate outside diameter (OD) for FFRP liners and the implications it has on pressure pipe rehabilitation projects.
Standardization Challenges
Several standards, including ISO11298-1 and ISO11298-11, have been established with the objective of standardizing the utilization of fold and form replacement pipe with inserted liner techniques. However, these standards exhibit a significant gap when it comes to providing explicit guidance to pipeline owners on designing the OD of FFRP liners. This lack of clarity presents challenges for the industry as it strives to undertake pipe rehabilitation projects with the highest level of precision and accuracy.
To address the lack of OD design guidelines, companies like ASOE Hose Manufacturing Inc. have stepped up to offer customized solutions. ASOE demonstrates the ability to design and manufacture FFRP liners with customized ODs to meet the diverse needs of different pipe types and sizes to be rehabilitated to enhance flexibility in their selection. For instance, when rehabilitating a 20-inch water pipeline, ASOE offers a variety of OD options, such as 17.875-inches, 18.5039-inches, 18.7008-inches, 18.8976-inches, 19.0945-inches, and 20.2913-inches."
Considerations for Designing the Outer Diameter of FFRP Liners in Pressure Pipe Rehabilitation | August 4, 2023 https://www.linkedin.com/pulse/considerations-designing-outer-diameter-ffrp-liners-pressure/?trackingId=x9O%2BYT0vQayC3rclvf87Bw%3D%3D
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