The OWP-BL43-300 Electric Coolant Pump stands as a premium, reliable solution specifically designed to meet the rigorous cooling demands of fuel cell systems. Equipped with advanced protective features and high-performance specifications, this pump ensures stable operation even in extreme environments, making it an ideal choice for automotive and industrial fuel cell applications.

Designed exclusively for fuel cell cooling systems, the OWP-BL43-300 integrates multiple critical protections: constant flow control maintains consistent cooling performance, while reverse polarity protection prevents damage from incorrect wiring. Dry running protection safeguards the pump during low-liquid conditions, and comprehensive overvoltage, overcurrent, overload, and overtemperature protections ensure durability in harsh operating scenarios.

As a single-stage centrifugal pump with a magnetic force transmission (shield pump structure), it eliminates leakage risks—critical for fuel cell systems where fluid integrity is paramount. The high-efficiency brushless DC motor not only reduces power consumption but also delivers a service life exceeding 20,000 hours, minimizing maintenance needs for long-term operation. With a wide operating temperature range and PWM speed control, the pump adapts seamlessly to dynamic fuel cell load changes, optimizing cooling efficiency and system performance.

1. Superior Motor Efficiency: Validated through professional electromagnetic theory design, the pump’s motor achieves 3-5% higher efficiency than industry competitors, reducing energy waste and enhancing fuel cell system sustainability.
2. Optimized Hydraulic Performance: Advanced software-driven simulation calculations ensure perfect matching between the impeller and volute, delivering higher hydraulic efficiency for maximum flow and lift performance.
3. Automotive-Grade Durability: Constructed with automotive-grade electronic components, the pump withstands extreme temperature fluctuations, vibration, and moisture—meeting the stringent reliability standards of fuel cell vehicles and industrial systems.
4. All-Round Protection: The IP68 rating and comprehensive protective features guarantee operation in harsh environments, from sub-zero temperatures to high-heat conditions, without compromising performance.

Flow rate VS Head

Dimension Diagrams