Propeller pump

for coolantwith electric motorstationary

Overview
Gates data center pumps are engineered to maximize fluid flow in a compact design while being energy efficient and reliable. These pumps adapt Gates' thermal management expertise to address the complexities of data center cooling systems, focusing on performance in critical environments.

Design Principles
Gates defined the pump architecture around application requirements and long-term reliability by evaluating radial flux and axial flux motor configurations for electromagnetic, thermal, and packaging characteristics. Axial flux configurations were selected where torque density targets and integration constraints favored a compact, high-efficiency motor. The design emphasis includes leak-proof packaging and isolation of motor and electronics from possible coolant intrusion.

Features & Benefits

• Designed for reliability and optimized for efficiency in data center cooling applications.
• Axial flux motor architecture provides highest power density and efficiency — up to ~25% improvement compared to equivalent radial flux motors.
• Dry rotor design: improved motor efficiency, durability, reliability and reduced NVH compared to standard radial flux designs.
• Coolant compatible: built for a wide range of fluids, including PG25 mixes and dielectric coolants.
• Modular and scalable designs to shorten development time and support customization.
• Dual-mount capabilities: available in direct manifold and chassis mount configurations for integration flexibility.
• Leak-proof, compact, scalable models that isolate motor/electronics from coolant risk.

Three-phase Axial Flux Pump (product class details)
Three-phase axial flux pump designs target high-volumetric fluid flow with high power density in a compact package. Control board families are isolated for contamination protection. Supported power and voltage ranges described in product information: power levels ranging approximately from 100 W to 6 kW and DC input voltages from about 12 V to 800 V. These pumps are intended for 4U+ in-rack designs and side‑car configurations; higher-power (20 kW+) designs are under development for super high-flow solutions.

Applications

• In-rack 4U+ CDU designs requiring high flow in a small envelope.
• Side-car CDUs handling high flow volumes and multiple coolant loops with large plate heat exchangers.
• Super high-flow liquid cooling towers and racks (very high L/min per rack scenarios).
• Secondary loop and facility water pumping applications where high volumetric flow at low differential head is required.

Resources & Tools
Product documentation and supporting resources are published for this product family, including sell sheets and a data center solutions family brochure. Engineering tools and calculators (fluid flow/pressure and ThermalPro guidance) are provided to help identify suitable pump options and system-level performance tradeoffs.

Technical characteristics / specifications

• Motor topology: Axial flux motor architecture (dry rotor options available).
• Power density: Up to ~25% improvement in motor efficiency vs. equivalent radial flux designs.
• Power range (illustrative): ~100 W to 6 kW (product family variants); development for 20 kW+ designs is in progress.
• Input voltage (illustrative): ~12 V to 800 V DC (product-specific variants).
• Mounting options: Direct manifold and chassis (dual-mount capabilities).
• Form factor: Compact, leak-proof, scalable models suitable for 4U+ rack and side car configurations.
• Fluid compatibility: Designed for a wide range of coolants, including PG25 and dielectric coolants.
• Protection: Isolated control board options to strengthen contamination protection and isolate electronics from coolant intrusion.
• Target use cases: In-rack CDUs, side car CDUs, super high-flow data center cooling, secondary loop and facility water pumps.