Driven by the surging demand for AI computing power, liquid cooling has emerged as a mainstream solution for intelligent computing centers thanks to its outstanding heat dissipation efficiency and low energy consumption. As a core component in liquid cooling systems, the Coolant Distribution Unit (CDU) undertakes critical tasks including coolant circulation, heat exchange and flow regulation, acting as a vital hub connecting the cold source side and the server side. Its operating status directly determines the overall heat dissipation performance, stability and reliability of the entire liquid cooling system.
Abnormal pressure, insufficient flow, temperature fluctuations, declining liquid level and degraded water quality will all lead to performance degradation or even equipment failures. Therefore, continuous monitoring of CDU’s key parameters has become an essential part of the construction and operation & maintenance of liquid cooling systems.
| Parameter | Measuring Point | Monitoring Purpose |
|---|---|---|
| Inlet Pressure | Inlet pipelines of the primary and secondary sides | Monitor the stability of water supply pressure and identify potential blockage or leakage risks |
| Outlet Pressure | Return pipelines of the primary and secondary sides | Track return water pressure, calculate system pressure drop and evaluate real-time changes in system resistance |
| Inlet Temperature | Inlet pipelines of the primary and secondary sides | Precisely detect the temperature of coolant entering the CDU, serving as a key indicator to assess the performance of upstream refrigeration units |
| Outlet Temperature | Return pipelines of the primary and secondary sides | Measure outlet temperature, calculate total heat exchange capacity and evaluate the overall heat dissipation efficiency of the CDU |
| Coolant Flow | Main circulation pipelines of the CDU | Monitor the total circulating coolant volume to guarantee long-term compliance with the designed heat dissipation requirements of equipment |
| Coolant Level | Expansion tank / Liquid storage tank | Track the total coolant in the system in real time to prevent hazards caused by excessively low liquid level due to leakage or overfilling |
| Water Quality (Conductivity) | CDU water tank or main pipelines | Detect the conductivity of coolant to identify impurity contamination or chemical changes, and maintain the cleanliness of the system |
Tailored to the operational requirements of CDU equipment, MEOKON has built a comprehensive terminal sensing solution for liquid cooling systems, covering pressure, temperature, flow, liquid level and water quality monitoring. It realizes real-time data collection, remote transmission and centralized management of key operating parameters.
Pressure Sensor
Temperature Sensor
Flow Meter
Level Transmitter
Water Quality Sensor
The stable operation of liquid cooling systems relies not only on core equipment such as cold plates, CDUs and heat exchangers, but also on continuous perception of key operating parameters. With a full range of sensing terminals for pressure, temperature, flow, liquid level and water quality, MEOKON provides a complete set of monitoring equipment and supporting solutions for liquid cooling systems in data centers. We offer full-process support ranging from equipment operation monitoring to anomaly early warning management, helping intelligent computing centers build safer, more efficient and more reliable liquid cooling infrastructure.
Post time: Jun-08-2026