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ASTM publishes new technical standard for flexible dual-wall pipe

New technical standard for flexible dual-wall pipe creates an industry-wide consensus on the requirements and testing methods for the product.


May 26, 2020
By Drainage Contractor

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The American Society for Testing and Materials (ASTM) has published a new technical standard for flexible dual-wall pipe, the ASTMF 3390. Photo courtesy of Prinsco.

The American Society for Testing and Materials (ASTM) published a new standard specification for flexible dual-wall pipe, ASTMF3390, creating industry-wide consensus regarding requirements and testing methods for the product.

The standard is the result of an 18-month process initiated and led by pipe producer Prinsco in order to ensure the quality and performance of flexible dual-wall pipe in the marketplace.

ASTM is a professional forum for creating industry standards with an in-depth technical review and balloting process that includes professionals from all related industries such as concrete and metal. ASTM publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.

“Until now, flexible dual-wall has been unregulated, causing inconsistencies in the product across different manufacturers. Prinsco has invested considerable time and resources to usher this standard through the ASTM process in order to ensure that quality and performance metrics are being met by all. We take great pride in offering a premium product that is the first to meet these newly defined standards,” explains Jason Ahrenholz, Prinsco director of engineering, in a media release.

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“Until now, flexible dual-wall has been unregulated, causing inconsistencies in the product across different manufacturers. Prinsco has invested considerable time and resources to usher this standard through the ASTM process in order to ensure that quality and performance metrics are being met by all.”

According to the company, ASTM F3390 is a significant step in the advancement of flexible dual-wall pipe for use in land drainage applications, specifically engineered water management systems for regulated government or NRCS projects. It clarifies material requirements for both the inner and outer layer of the pipe in order to ensure performance. It also requires a pipe stiffness equal to that of dual-wall sticks to ensure performance, safety and tolerance for installation conditions.

The ASTM F3390 Standard Specification includes 3” – 24” diameter pipe intended for non-pressurized gravity flow applications. More information can be found online on the ASTM’s site for F3390 or through the ASTM F3390 highlights summary provided by Prinsco.