Designed with precision for demanding thermal management needs, this electric coolant pump integrates advanced technologies to deliver reliable performance. The closed-type impeller ensures exceptional pumping efficiency while minimizing operational noise, creating a quiet and energy-saving solution. As a permanent magnet brushless pump, it features a compact footprint and low power consumption, making it ideal for space-constrained applications where energy efficiency is critical. The shaft system adopts high-durability friction pair materials, significantly extending the service life beyond 20,000 hours even under harsh operating conditions. Its centrifugal and shielded structure enhances operational stability and prevents medium leakage, while the PWM duty cycle speed regulation allows for precise flow control to adapt to dynamic thermal management requirements. Equipped with comprehensive protection functions, including reverse connection protection, overvoltage protection, overcurrent protection, dry running protection, and overtemperature protection, the pump ensures safe and continuous operation, reducing maintenance costs and downtime. With an IP68 protection grade, it offers excellent resistance to dust and water immersion, suitable for challenging automotive environments.

This OWP-BL43-440T Electric Coolant Pump is specifically engineered for new energy vehicle power battery pack thermal management—a critical application where maintaining optimal battery temperature directly impacts performance, safety, and lifespan. New energy vehicle batteries generate significant heat during charging and discharging processes, and inefficient heat dissipation can lead to reduced battery capacity, accelerated aging, or even safety hazards. The pump’s robust performance parameters are tailored to address these challenges: with a rated flow rate of 3000L/H at 20M head and a maximum flow rate of 5000L/H, it efficiently circulates cooling media (50-60% glycol + water mixture, dielectric oil, or electronic fluorinated solution) through the battery pack’s cooling system, ensuring uniform temperature distribution. Its maximum lift head of 23M enables reliable fluid circulation even in complex cooling circuit layouts, while the -40℃ to 85℃ operating temperature range allows the pump to perform flawlessly in extreme climate conditions, from frigid winters to hot summers. The 25mm outlet diameter facilitates seamless integration with standard automotive cooling system pipelines, ensuring easy installation. The PWM speed regulation function allows the vehicle’s thermal management system to adjust the pump’s operating speed in real time based on battery temperature data, optimizing cooling efficiency and reducing energy consumption. The high/low-level fault feedback signal provides real-time status monitoring, enabling the vehicle’s control system to promptly respond to abnormalities and trigger protective measures. With its IP68 protection, the pump withstands the harsh under-vehicle environment, including exposure to dust, water, and vibration. The ＞20000-hour service life aligns with the long-term reliability requirements of new energy vehicles, reducing replacement frequency and total cost of ownership. By effectively managing battery pack temperature, this electric coolant pump enhances battery performance, extends cycle life, and ensures the safe operation of new energy vehicles, making it an indispensable component for electric vehicle manufacturers and thermal management system integrators.

PWM Speed Control & Fault Feedback

Flow Rate VS Head

Overall Size