Gates Develops 3″ and 4″ Data Master Megaflex Hoses for Higher Capacity Data Center Cooling

New large‑diameter hoses open access to more applications — supporting higher flow rates and improving installation efficiency across cooling loops.

Gates Corporation (NYSE: GTES) has expanded its Data Master™ MegaFlex™ hose portfolio with new 3-inch and 4-inch inner diameter options. The larger sizes are purpose‑built for the increased cooling capacity and higher flow rates demanded by next‑generation AI, hyperscale, and HPC facilities.

Data center cooling systems are being pushed harder than ever as rack power densities begin to reach 150+ kW per rack, coolant flow requirements are dramatically increasing. The expanded Data Master MegaFlex line delivers the flexibility, durability, and flow capacity required for large‑diameter data center cooling applications. The new 3-inch and 4-inch ID hoses give designers and operators greater freedom to build scalable systems that meet liquid cooling requirements.

“The cooling demands and the subsequent flow requirements are rapidly increasing,” said Rebekah Headley General Manager of the Gates data center business unit. “By adding 3‑inch and 4‑inch diameters to the Data Master MegaFlex line, we’re giving a broadened set of solutions to address equipment and onsite coolant conveyance.”

 What the Expansion Delivers

• OCP aligned: Large bore 3″ and 4″ ID hoses align with OCP liquid cooling guidance by enabling high-flow, low-pressure-drop performance in primary and CDU loops, while supporting material compatibility and flexible routing
• Enables new applications: optimized for technology‑cooling system source lines and Coolant Distribution Units (CDUs)
• Reduces system contamination: proprietary zinc‑free peroxide cured EPDM tube materials protect coolant purity and critical components
• More efficient installation: Up to 75% tighter minimum bend radius (MBR) versus competing hoses reduces kinking and rework, while eliminating cleaning, passivation and welded connections required for rigid steel piping
• Increases cooling capacity: larger IDs support greater coolant flow across data center cooling loops
• Reduces system pressure drop: reduced hydraulic resistance, lowering pump head requirements and improving cooling loop efficiency

Real‑World Deployment Validates Performance

In a recent multi-building data center expansion, engineers faced tight routing spaces, aggressive construction schedules, and the need for large-ID lines to support high-flow liquid cooling. They selected Data Master MegaFlex, which combines specialized zinc-free peroxide-cured EPDM tube material for coolant compatibility and fast, kink-free installation enabling the higher flow needed for cooling loop distribution and CDU integration.

Gates local distribution network supplied custom cut-to-length assemblies, helping the contractor stay on schedule across multiple build phases. The result: higher capacity cooling through larger flow paths, maximizing usability, flexibility, and coolant cleanliness. The project demonstrated how larger diameter Data Master MegaFlex hoses can accelerate construction timelines while delivering the higher flow rates required for modern cooling architectures.

The expanded Data Master MegaFlex hose line and the full Gates Data Center Solutions portfolio are available globally.

More information about the Data Master™ MegaFlex™ hose portfolio

More information about data center solutions from Gates