06/03/2026
Reducing Non-Revenue Water with DI Pipelines.
Strengthening urban water networks to minimize losses and improve supply reliability.
Non-Revenue Water (NRW)—water that is produced but not billed due to leaks, bursts, illegal connections, and metering inaccuracies—erodes utility finances and weakens service reliability. Upgrading distribution networks with Ductile Iron (DI) pipelines is a practical, long-term strategy to reduce NRW because DI pipes combine high strength, tight joints, and proven durability under real-world operating conditions.
DI pipelines withstand pressure fluctuations, traffic loads, and ground movement that often trigger cracks and joint failures in weaker materials. Modern restrained and gasketed joints provide excellent sealing performance, minimizing hidden leakage at connections. Corrosion protection systems (such as zinc coatings, polyethylene sleeving, and internal cement mortar linings) extend service life and preserve hydraulic capacity, reducing failure rates and the need for frequent repairs. DI networks also integrate well with district metered areas (DMAs), pressure management, and acoustic leak detection, allowing utilities to find and fix losses faster.
By lowering burst frequency, reducing chronic seepage, and improving system stability, DI pipelines help utilities convert treated water into revenue, improve continuity of supply, and cut energy and treatment costs. The result is a measurable reduction in NRW and a stronger, more resilient water supply system.
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