Electric Coolant Pump OWP-BL43-426C: A Reliable Solution for EV Thermal Management

The Electric Coolant Pump OWP-BL43-426C is a high-performance thermal management component designed to meet the rigorous demands of modern electric vehicle (EV) systems. With advanced protection features, efficient operation, and wide environmental adaptability, it serves as a critical part in maintaining optimal temperatures for sensitive EV components.

Technical Specifications

Application: EV Liquid-Cooled Superchargers

A key application of the OWP-BL43-426C pump is in EV liquid-cooled superchargers—a vital system for fast and safe EV charging. During high-power charging, superchargers generate significant heat; without effective cooling, this heat can reduce charging efficiency, damage components, or even pose safety risks. The OWP-BL43-426C addresses this challenge by efficiently circulating cooling mediums (such as glycol-water mixtures or dielectric oil) through the supercharger’s thermal management loop. Its wide operating temperature range (-40℃ to +85℃ (-40°F to +185°F)) ensures reliable performance in extreme climates, from cold winter mornings to hot summer afternoons. Additionally, the pump’s IP68 rating makes it suitable for outdoor supercharger installations, where it may be exposed to rain, dust, or moisture. With PWM speed regulation, the pump can adjust its flow rate in real time based on the supercharger’s heat load, optimizing energy use while maintaining consistent cooling. This adaptability not only enhances the supercharger’s lifespan but also ensures stable, fast charging for EV users.

Core Advantages

1. Comprehensive Protection: Equipped with reverse polarity protection, dry running protection, over-voltage/over-current protection, and overload/over-temperature protection, the pump safeguards both itself and connected EV components from damage.
2. Efficient & Durable Operation: Powered by a high-efficiency brushless DC motor, it minimizes power consumption while delivering long service life (＞20000 hours), reducing maintenance costs for EV operators.
3. Stable Performance: Features constant flow control and magnetic force transmission (shield pump structure), ensuring smooth, leak-free operation and consistent cooling performance.
4. Versatile Adaptability: Compatible with multiple cooling mediums and designed to withstand harsh environmental conditions (wide temperature range, IP68 rating, humidity resistance), making it suitable for diverse EV charging scenarios.

PWM & Error Feedback

Performance Curve

Overall Size