High-Precision PWM Electric Coolant Pump for High-Power Switching Power Supply

High-Precision PWM Electric Coolant Pump for High-Power Switching Power Supply Heat Dissipation in Industrial Power Industry

The OWP-BL43-450T Electric Coolant Pump is a professional thermal management solution engineered to meet the rigorous heat dissipation requirements of high-power switching power supplies in the industrial power sector. Designed with industrial-grade reliability and efficiency at its core, this pump delivers stable and precise cooling performance, ensuring the optimal operation of critical power supply components even under continuous high-load conditions, making it a trusted choice for industrial power system thermal management.

Flow rate VS Head curve

Speed control and error feedback chart

• Closed Impeller Configuration: Optimizes fluid flow path to minimize energy loss, achieving high pumping efficiency while suppressing noise generation—aligning with the ≤60dB noise standard, suitable for noise-sensitive industrial workshops.
• Permanent Magnet Brushless Motor: Combines compact dimensions with low 250W rated power consumption, facilitating space-saving installation in dense power supply cabinets and reducing overall energy consumption of the system.
• Ultra-Durable Shaft Assembly: Adopts high-wear-resistance friction pair materials, extending the service life beyond 20,000 hours and reducing maintenance frequency for industrial power equipment operating 24/7.
• Centrifugal & Shielded Structure: Physically separates the motor from the cooling medium, preventing contamination from conductive or corrosive fluids and enhancing operational stability in industrial environments.
• PWM Speed Regulation Technology: Enables precise flow rate adjustment between 6000L/H (rated) and 9000L/H (max) to match dynamic heat loads of switching power supplies, optimizing cooling efficiency and energy utilization.
• Multi-Protection Functions: Integrates reverse polarity, overvoltage, overcurrent, dry-run, and overtemperature protection mechanisms to mitigate risks of component damage, ensuring uninterrupted operation of industrial power systems.

The OWP-BL43-450T Electric Coolant Pump is specifically designed for heat dissipation in high-power switching power supplies within the industrial power industry, where effective thermal management is crucial for maintaining power conversion efficiency and component reliability. 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 power semiconductors, transformers, and capacitors in switching power supplies. Its wide medium temperature range (-40℃ to 85℃) and IP68 protection grade adapt to harsh industrial operating environments, including extreme temperatures and dusty conditions. The PWM speed regulation and high/low-level fault feedback signal allow seamless integration with industrial control systems, enabling real-time monitoring and adaptive cooling. This model’s compact design, low noise, and long service life make it an ideal thermal management component for enhancing the stability, efficiency, and lifespan of high-power switching power supplies in industrial automation, manufacturing, and power distribution systems.

Dimensional drawing