As the demand for data storage continues to surge, data centers are facing increased pressure to expand sustainably. A major focus in this effort is water conservation, and a growing number of facilities are shifting from open evaporative cooling systems to closed-loop liquid cooling to reduce environmental impact. This shift presents a clear opportunity for manufacturers — and Waukesha Foundry is well-positioned to support the infrastructure behind this transition.
Traditional open-loop cooling systems rely on evaporative cooling, where water is exposed to air and allowed to evaporate — a process that, while effective at removing heat, results in high water consumption. With growing environmental concerns and increasing water scarcity in many regions, this method is becoming less viable.
In response, many data center operators are investing in closed-loop cooling systems for both new and existing facilities. These systems recirculate water within a sealed circuit, significantly reducing water loss and improving Water Usage Effectiveness (WUE) — a key metric in sustainable data center design.
This transition brings increased demand for centrifugal pump systems capable of supporting closed-loop operations — and with that, demand for the cast components that make them work. Foundries like Waukesha Foundry are ready to meet the demand for:
- High-performance alloys designed for long-term durability and fluid handling
- Precision castings ideal for pump housings, impellers, and other complex parts
- Corrosion-resistant materials suited for continuous recirculation and thermal variation
These pumps are the heart of closed-loop cooling systems, and quality cast components ensure they operate efficiently, reliably, and with minimal maintenance — critical factors for data centers running 24/7.
Data center operators are not only investing in cooling innovation but also in the entire ecosystem that supports it. As a supplier, aligning with sustainability priorities like water and energy efficiency can be a differentiator. Foundries that emphasize material performance, operational reliability, and customization for evolving cooling technologies are poised to become key partners in the new data center era.
At Waukesha Foundry, we understand the need for materials innovation, tight tolerances, and customized solutions that evolve alongside emerging technologies. As more facilities adopt closed-loop systems, we are ready to support the shift — combining metallurgical excellence with proven manufacturing consistency.