Ning Liu, Product Manager at Envicool, presented the company's full-chain liquid cooling strategy and 2 GW+ deployment track record at the 2025 OCP Global Summit in San Jose. The talk covers Envicool's 20-year history, its three-pillar 'full-chain' framework (ecosystem integration, application scenarios, lifecycle management), and detailed product specifications ranging from in-row CDUs (300 kW–2.5 MW) to manifolds, secondary piping, load banks, and production-line automation tools. A central theme is the industry's transition to mandatory liquid cooling as rack densities surpass 120 kW and approach a projected 1 MW per rack by 2027.

Key Takeaways

• Envicool has delivered over 2.0 GW of liquid cooling solutions since its first products in 2015, with 5,000+ employees, HQ in Shenzhen, and an R&D center in Fremont, CA.
• NVIDIA's NVL72 rack at 120 kW made liquid cooling mandatory rather than optional; rack densities are projected to reach 1,000 kW by 2027, raising the question of what the cooling solution for 1 MW/rack will be.
• The full-chain strategy integrates the entire supply chain from chip provider to end user, covering cold plates, QDs, manifolds, CDUs, secondary pipes, coolants, and control systems under one vendor.
• The flagship 2.5 MW in-row CDU delivers 2500 kW at 4°C ATD, 3750 LPM at 35 psi, with less than 5% fluctuation during failure switchover and 1%–100% flow rate range.
• The sidecar CDU delivers 100 kW at 15°C ATD; a 250 kW model at 10°C ATD is scheduled for Q4 2025 release.
• Pre-fabricated framed piping (SFN) reduces on-site installation time by 50–70% by integrating pipes into structural supports in the factory before shipment.
• The modular liquid cooling load bank scales from 20 kW/module to 240 kW/rack today; a next-generation 50 kW module targeting 600 kW/rack is in development for 1 MW+ rack validation.
• Envicool's Automatic Test Tool consolidates all liquid-cooled server production processes (filling, draining, leak test, drying, nitrogen injection) into a single 7 kW cabinet with pH/conductivity/turbidity fluid quality monitoring.