The BLDC Coolant Pump OWP-BL43-426C is a high-performance solution engineered specifically for cooling systems in high-density blade servers—critical infrastructure where efficient heat dissipation directly impacts server reliability, performance, and lifespan. High-density blade servers pack multiple computing units into a compact chassis, generating intense heat that traditional air cooling often struggles to manage. This pump addresses this challenge by delivering consistent, adjustable coolant flow to circulate heat-transfer mediums (such as 50-60% glycol-water mixtures, dielectric oil, or mineral oil) through the server’s cooling loop, ensuring components like CPUs, GPUs, and power supplies stay within safe operating temperatures even under heavy workloads (e.g., data processing, cloud computing, or AI tasks). Its robust design and IP68 waterproof rating also make it suitable for sealed or liquid-immersed cooling setups, a growing trend in high-density data centers aiming to reduce energy consumption and noise.

1. Superior Reliability & Longevity: Equipped with a high-efficiency brushless DC (BLDC) motor, the pump boasts a service life of over 20,000 hours—far longer than traditional brushed motors—while minimizing power consumption. Magnetic force transmission (shield pump structure) eliminates mechanical seals, reducing leak risks and maintenance needs.
2. Comprehensive Protection Features: It includes reverse polarity protection, dry running protection, and safeguards against overvoltage, overcurrent, overload, and overtemperature. These features prevent pump damage and downtime, critical for 24/7 server operations.
3. Flexible Performance: PWM speed regulation allows precise control of flow rate (from rated 2400L/H to max 5000L/H) to match real-time heat loads, optimizing energy efficiency. Constant flow control ensures stable coolant delivery, avoiding temperature fluctuations.
4. Durable & Versatile Build: The aluminum pump housing, SUS 304 stainless steel fasteners, and PPA GF motor winding frame resist corrosion and withstand harsh operating conditions (ambient/liquid temperatures from -40℃ to +85℃). Flange quick-connect design enables easy installation and replacement.