Marine-Grade PWM Electric Coolant Pump for New Energy Vessel Power Battery Thermal Management

The OWP-BL43-450T Electric Coolant Pump is a specialized thermal management solution engineered to meet the stringent heat dissipation demands of power batteries in new energy vessels. Built with marine-specific durability and performance in mind, this pump excels in harsh marine environments—resisting moisture, corrosion, and extreme temperature fluctuations—while ensuring stable and efficient cooling for battery packs that power electric and hybrid ships.

Performance Curve

PWM Speed Control Mode & Fault Feedback Signal

• Closed Impeller Technology: Optimizes fluid dynamics to maximize pumping efficiency, while the enclosed design reduces turbulence and contributes to the ≤60dB noise control—critical for noise-sensitive marine cabins and crew comfort.
• Permanent Magnet Brushless Motor: Delivers a compact footprint with low 250W rated power consumption, enabling space-efficient installation in confined vessel engine rooms and reducing overall energy draw from the battery system.
• Ultra-Durable Shaft Assembly: Utilizes high-wear-resistance friction pair materials, supporting a service life exceeding 20,000 hours and minimizing maintenance downtime for long-distance marine voyages.
• Centrifugal & Shielded Structure: Isolates the motor from cooling media to prevent corrosion and contamination, enhancing reliability in high-humidity marine environments.
• Precision PWM Speed Control: Allows dynamic flow rate adjustment (from 6000L/H rated to 9000L/H max) based on battery heat load, optimizing cooling efficiency during high-power discharge and extending battery lifespan.
• Multi-Faceted Protection Systems: Integrates reverse polarity, overvoltage, overcurrent, dry-run, and overtemperature protection to safeguard both the pump and battery pack from operational failures, ensuring maritime safety.

The OWP-BL43-450T Electric Coolant Pump is specifically tailored for power battery heat dissipation in new energy vessels, a critical application where consistent thermal management directly impacts battery performance, safety, and operational range. With a maximum flow rate of 9000L/H and 11M lift head, the pump efficiently circulates compatible cooling media (50-60% glycol-water mixture, dielectric oil, electronic fluorinated solution) to remove heat from high-density battery packs, preventing thermal runaway and maintaining optimal operating temperatures (-40℃ to 85℃). Its IP68 protection grade ensures complete dust and water resistance, making it suitable for both above-deck and below-deck installations in marine vessels. The PWM speed regulation and high/low-level fault feedback signal enable seamless integration with the vessel’s central control system, supporting real-time monitoring and adaptive cooling. This model’s compact design, low noise, and long service life make it an an ideal choice for enhancing the reliability, safety, and efficiency of electric ferries, yachts, and commercial new energy ships.

Overall Size