The OWP-BL43-426T Electronic Coolant Pump is a high-performance solution tailored specifically for the Battery Management Systems (BMS) of electric dump trucks and other heavy-duty engineering vehicles. In harsh construction and mining environments, electric dump trucks rely on stable battery performance to power long hours of operation—this pump ensures optimal thermal management for BMS, preventing overheating even during intense workloads. It maintains consistent coolant flow in extreme temperatures, from frigid -40℃ (-40°F) job sites to high-heat +85℃ (+185°F) conditions, guaranteeing reliable long-term operation that aligns with the durability needs of engineering vehicles.

1. Superior Motor Efficiency: Backed by professional electromagnetic theory design verification, its motor delivers 3-5% higher efficiency than competing models, reducing energy consumption while boosting performance.
2. Optimized Hydraulic Design: Professional software-driven simulation calculations ensure the impeller and volute achieve perfect matching, resulting in higher hydraulic efficiency for consistent, powerful flow.
3. Automotive-Grade Durability: Built with automotive-grade electronic components, it withstands the harsh operating environments common in electric dump trucks—including vibration, temperature fluctuations, and dust—ensuring long service life.

• Constant flow control for stable BMS thermal management
• Reverse polarity protection to prevent damage from incorrect wiring
• Dry running protection to avoid motor burnout when coolant is insufficient
• Comprehensive safeguards: over-voltage, over-current, overload, and over-temperature protection
• Single-stage centrifugal structure for reliable flow output
• Magnetic force transmission (shielded pump design) to prevent coolant leakage
• High-efficiency brushless DC motor: low power use, high performance, and a service life exceeding 20000 hours

Performance Curve

Speed Regulation & Fault Feedback

Dimensional Drawing