Introduction
The OWP-BL43-200 Electric Coolant Pump is engineered to deliver reliable, high-performance fluid circulation for glycol-based systems. Equipped with advanced protection mechanisms and a brushless DC motor, this single-stage centrifugal pump combines efficiency, durability, and versatility to thrive in extreme operating conditions—making it an ideal choice for industrial, automotive, and specialized thermal management applications.
Key Advantages
- Precision Flow Control: Features constant flow regulation to maintain stable fluid movement, ensuring consistent system performance even under variable loads.
- Comprehensive Protection Systems: Integrated reverse polarity protection, dry running protection, and safeguards against overvoltage, overcurrent, overload, and overtemperature—minimizing downtime and extending service life.
- Superior Efficiency: Built with a high-efficiency brushless DC motor (over 20,000 hours of service life) and optimized via professional electromagnetic theory design, achieving 3-5% higher efficiency than competing models. Hydraulic components (impeller and volute) undergo advanced simulation calculations for optimal matching, enhancing hydraulic efficiency.
- Durable Construction: Magnetic force transmission (shield pump structure) and nylon plastic encapsulated magnets reduce wear and tear, while automotive-grade electronic components ensure resilience in harsh environments (extreme temperatures, humidity, and pressure).
- IP68 Waterproof Rating: Fully sealed design provides complete protection against dust and prolonged submersion, suitable for both indoor and outdoor installations.
Technical Specifications
| Parameter |
Details |
| Power Input |
24VDC (18-32VDC) |
| Rated Power |
250W |
| Rated Flow Rate |
2800L/H @ H=16M |
| Maximum Flow Rate |
4800L/H |
| Maximum Lift Head |
20M |
| Working Temperature Range |
-40℃ to +85℃ (-40°F to +185°F) |
| Outlet Diameter |
38mm (1.5 inches) |
| IP Rating |
IP68 |
| Noise Level |
≤60dB |
| Service Life |
>20,000 hours |
| System Pressure |
-0.5-2.5 Bar (at 100℃ / 212°F) |
| Medium Liquid Temperature |
-40℃ to +85℃ (-40°F to +185°F) |
| Working Ambient Conditions |
-40℃ to +85℃ (-40°F to +185°F), Humidity ≤90% |
Applications: Glycol Circulation Systems
The OWP-BL43-200 excels in glycol circulation, a critical function across multiple industries where precise temperature control and antifreeze protection are essential:
- Industrial Thermal Management: Circulates glycol solutions in manufacturing processes (e.g., plastic molding, metalworking) to regulate equipment temperature, prevent overheating, and maintain product quality.
- HVAC & Building Systems: Used in heating, ventilation, and air conditioning systems to distribute glycol-based coolants/antifreeze, ensuring efficient climate control in commercial buildings, data centers, and cold storage facilities—even in sub-zero temperatures.
- Automotive & Transportation: Ideal for electric vehicles (EVs), hybrid vehicles, and heavy-duty trucks, circulating glycol to cool batteries, inverters, and engine components while withstanding the rigors of road vibrations and extreme temperature fluctuations.
- Renewable Energy Systems: Supports solar thermal and geothermal systems by circulating glycol to transfer heat between collectors, storage tanks, and heat exchangers, optimizing energy efficiency in residential and commercial installations.
- Specialized Equipment: Suitable for medical devices, laboratory instruments, and industrial chillers that require stable, contamination-free glycol circulation to protect sensitive components from freezing or overheating.
Performance Curve

Overall Size

