Coolant Pump for Flow Battery Energy Storage: Maintenance-Free for Whole Service

The OWP-BL43-426C Electric Coolant Pump is a high-performance, durable solution engineered to support efficient thermal management, with a primary focus on Flow Battery Energy Storage Systems. Its robust design, precise control capabilities, and wide operational compatibility make it a reliable choice for meeting the demanding cooling requirements of industrial and energy storage scenarios.

A core application of the OWP-BL43-426C lies in thermal management for Flow Battery Energy Storage Systems—a critical function given the inherent heat generation from electrochemical polarization and ohmic polarization losses during the battery’s charge-discharge cycles. In MW-scale flow battery installations (such as grid-side energy storage stations or industrial-grade backup systems), the pump circulates compatible coolants (including 50-60% glycol-water mixtures or dielectric oil) through the battery’s closed cooling loop, specifically targeting high-heat components like the battery stack and electrolyte storage tanks.

Its rated flow rate of 2400L/H and maximum lift head of 20M ensure consistent, uniform coolant distribution across large battery stacks (comprising dozens to hundreds of individual cells), effectively preventing temperature imbalances that can lead to uneven reaction rates and accelerated capacity degradation. The pump’s wide operating ambient temperature range (-40℃ to +85℃) enables reliable performance in harsh outdoor environments—such as desert regions with extreme daytime heat or high-altitude sites—and sealed indoor facilities like data center配套储能 systems. With an IP68 protection rating, it resists dust accumulation and moisture intrusion, common hazards in outdoor energy storage yards. By maintaining the battery stack temperature within the optimal 25-45℃ range, the pump directly enhances the battery’s cycle life and ensures stable, continuous power output.

• Comprehensive Protection Mechanisms: The pump integrates multiple safety features, including reverse polarity protection, dry running protection, and safeguards against over-voltage, over-current, overload, and over-temperature. These functions prevent pump damage from abnormal operating conditions and enhance the overall safety of the connected flow battery system.
• Efficient & Long-Lasting Operation: It is equipped with a high-efficiency brushless DC motor that reduces power consumption while delivering a service life exceeding 20,000 hours. This combination lowers long-term maintenance costs and minimizes downtime for flow battery installations.
• Precise Cooling Control: PWM speed regulation and constant flow control allow the pump to adjust its output based on real-time cooling demands, optimizing energy efficiency when the flow battery operates at varying load levels.
• Robust & Versatile Design: The magnetic force transmission (adopting a shield pump structure) eliminates the risk of coolant leakage, while compatibility with multiple coolant types and the flange quick-connect design simplify installation and integration into existing flow battery systems.
• Low Noise Performance: With a noise level of ≤60dB, the pump is suitable for both indoor and outdoor installations, avoiding disruption to surrounding equipment or environments.

PWM & Fault Feedback

Performance Curve

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