Two Core Pipeline Routes Reshape the Development of AI Data Center Liquid Cooling Infrastructure
The liquid cooling industry adopts two mainstream pipeline solutions: mature stainless steel and innovative polymer pipelines. As key parts of the complete data center liquid cooling system, they cater to diverse construction needs and support the upgrading of high-density AI computing cooling infrastructure.
304 and 316L stainless steel pipelines dominate mainstream liquid cooling deployment. With outstanding corrosion resistance, wide coolant compatibility and over 25MPa burst pressure, they serve as reliable data center liquid cooling pipe solutions. Welded sealing effectively prevents leakage, offering a 15–20 year service life that covers the full data center lifecycle.
Stainless steel pipelines have evident shortcomings. Heavy weight increases floor load and logistics costs, while on-site welding extends construction cycles and raises labor costs. Additional water treatment and filtration systems are required to avoid corrosion and blockage, boosting operational costs for standard data center cooling pipe projects.
High-performance PPH and PVDF polymer pipelines solve stainless steel’s core pain points. Featuring stable chemical properties, they avoid corrosion and particle shedding to keep coolant clean, perfectly fitting high-demand AI data center liquid cooling scenarios. Smooth inner pipe walls reduce flow resistance, cutting pipeline pressure loss and pump energy consumption.
Polymer pipelines are 75% lighter than stainless steel pipes and support factory prefabrication and on-site quick assembly. This modular mode greatly shortens construction periods and lowers carbon emissions, becoming the optimal choice for rapid AI data center liquid cooling pipe deployment in time-sensitive hyperscale computing projects.
Polymer pipelines still have application limitations. Ordinary polymers may swell and age with fluorinated coolant for immersion cooling, while their ultra-high pressure resistance and long-term aging stability need further verification, restricting large-scale replacement of traditional data center liquid cooling manifold systems.
Per the 2025 domestic industry report, stainless steel pipelines remain the mainstream in China’s liquid cooling market. Prioritizing operational reliability, complete supply chains and mature technical systems, mainstream vendors deploy 316L stainless steel for data center cooling manifold, widely compatible with H100 and GB200 AI chips for large-scale intelligent computing centers.
The two pipeline routes will coexist and complement each other rather than replace one another. Stainless steel is optimized for lightweight and low-cost iteration, while polymer materials are upgraded for higher strength and compatibility. Scenario-based customized AI data center liquid cooling manifold and pipeline solutions will become the future trend, adapting to diverse high-density computing cooling demands.
A globally trusted name in liquid cooling, EXTRCOOL develops custom solutions for high-density AI and HPC data centers. Our premium thermal lineup—dual-mode CDUs, manifolds, cold plates, rear-door heat exchangers, dry coolers, and containerized units—offers proven reliability, seamless integration, and easy scalability for a turnkey one-stop full liquid cooling deployment. We partner with data center operators and enterprises across South America, Central Asia, Southeast Asia, the Middle East, and Southern Europe.
