High Flow 300W IP68 Electric Coolant Pumps For Industrial Chillers 48V PWM Speed

The OWP-BL300H-D3-3 Electric Coolant Pump is a precision-engineered solution tailored for Industrial Chillers, combining powerful performance, rugged durability, and intelligent control to meet the rigorous cooling demands of industrial refrigeration systems. Operating on a 48VDC input (42-54VDC operating range) with a 300W rated power, this pump delivers a rated flow rate of 2880L/H at 17.5M head, while boasting an impressive maximum flow of 5000L/H and a maximum lift head of 22M—ensuring efficient circulation of cooling media to maintain optimal temperatures in industrial chiller systems. Compatible with 50-60% glycol-water mixtures, dielectric oil, and electronic fluorinated solutions, it performs reliably across a wide temperature spectrum of -40℃ to 85℃ for long-hour continuous operation, adapting seamlessly to the variable conditions of industrial environments. Equipped with IP68 waterproof and dustproof protection, PWM speed regulation, and high/low-level fault feedback, the OWP-BL300H-D3-3 offers enhanced operational safety and flexibility, while its ≤60dB noise control ensures unobtrusive performance and a service life exceeding 20000 hours guarantees long-term cost-effectiveness for industrial chiller applications.

The OWP-BL300H-D3-3 excels in industrial chiller applications thanks to its closed-type impeller design, which maximizes flow output and pump efficiency while keeping noise levels below 60dB—ideal for noise-sensitive industrial settings. As a permanent magnet brushless pump, it features a compact form factor and low power consumption, allowing for easy integration into chiller systems with limited space and reducing energy costs. The pump’s shaft system is constructed with ultra-high-life friction pair materials, extending its service life beyond 20000 hours and minimizing downtime for maintenance. Its shielded structure provides superior protection against media contamination and external debris, ensuring consistent performance in harsh industrial conditions, while the IP68 rating offers complete defense against dust and water immersion—critical for reliable operation in industrial environments. Additionally, PWM speed regulation enables precise adjustment of flow rates to match chiller load fluctuations, and high/low-level fault feedback signals facilitate real-time system monitoring, preventing potential failures and optimizing cooling efficiency.

Specifically designed for Industrial Chillers, the OWP-BL300H-D3-3 Electric Coolant Pump plays a vital role in maintaining the performance and reliability of industrial refrigeration systems used in manufacturing, processing, and HVAC applications. Industrial chillers require efficient circulation of cooling media to remove heat from machinery, equipment, and production processes, and this pump’s high flow rate (up to 5000L/H) and maximum lift head (22M) ensure rapid heat transfer and consistent temperature control. Its compatibility with a range of cooling media and ability to operate in extreme temperatures (-40℃ to 85℃) make it suitable for diverse industrial chiller configurations, from air-cooled to water-cooled systems. With its long service life, low noise operation, and advanced control features, the OWP-BL300H-D3-3 provides a durable, efficient, and low-maintenance cooling solution for industrial chillers, helping to improve system performance, reduce energy consumption, and extend the lifespan of critical industrial equipment.

PWM Speed Control Mode & Fault Feedback

Overall Drawing