Cast Iron Coatings for Aggressive DWV Applications with Charlotte Pipe

In this ATS University session, Zach Allison and Rebecca Perullero summarize their “Pipe Month” series, offering a high-level review of commercial piping applications, material selection factors, and code compliance.

They highlight common industry pitfalls—such as specifying outdated, discontinued manufacturers or obsolete code standards in master specifications—and discuss emerging trends like prefabrication, IoT leak detection, and high-temperature Legionella flushes.

The session concludes with a live demonstration of the free, manufacturer-funded ATS Spec Tool, illustrating how designers can automatically configure complete piping assemblies, filter by local codes, manage firm-wide master standards, and export spec packages in over ten formats.

Key Takeaways:

Material Selection Depends on the Application: Pipe choices must account for fluid type, temperature variations, operating pressure, sound attenuation, and chemical/acid exposure (e.g., e-coated cast iron for aggressive kitchen grease off-gassing, or borosilicate glass/stainless steel for high-temp lab and commercial flushes).

Standards Over Quality Misconceptions: Standard designations like PEX-A, B, and C refer to manufacturing methods (cross-linking processes) rather than quality grades; engineers should focus on ensuring products meet relevant ASTM, NSF, and local pressure standards.

Outdated Masters Risk Non-Compliance: Up to 20% of active specifications contain obsolete codes or manufacturers that have been out of business for years.

Specify Complete Assemblies: Complete piping systems should account for the entire chain—including the pipe, fittings, supports/hangers, transition couplings, and labeling.

ATS Spec Tool Streamlines Workflows: The platform provides location- and application-based recommendations, enables easy drag-and-drop master template management, alerts teams to product discontinuations, and exports complete spec packages in multiple formats.