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Meeting the Cooling Imperative of the AI Era: [KATU] Full-Range Sensors Empower High-Quality Liquid Cooling Development.
The exponential surge in AI model training and inference computing power is driving a historic industry shift from air‑cooled to liquid‑cooled data centers. With higher thermal efficiency, lower energy use, and greater reliability, liquid cooling has now become an essential requirement for high‑density computing infrastructure. [KATU], a leader in sensors and controls, stays at the forefront of this trend by applying its proven expertise in flow, pressure, temperature, liquid level, and position sensing. Our full‑spectrum, highly dependable sensing and monitoring solutions empower liquid cooling systems to deliver safe, efficient, and sustainable data center operations.
1. Liquid Cooling: From “Optional” to “Essential” – Market Enters Accelerated Growth Phase
Currently, the power consumption of AI chips continues to climb – Google’s TPU v7 already reaches 980W per chip, and a single rack of NVIDIA’s Rubin platform demands approximately 300kW. Traditional air cooling approaches its thermal limit when rack power exceeds 50kW, making liquid cooling a hard requirement for newly built data centers.
Market data corroborates this trend. According to a report by CCID Consulting, China’s liquid cooling data center market reached RMB 15.98 billion in 2025, up 45.2% year‑on‑year. It is projected to grow to RMB 23.25 billion in 2026 and further to RMB 47.04 billion in 2028 – more than doubling over the period. The penetration rate of liquid‑cooled servers in China has risen from less than 3% in 2021 to approximately 20% in 2025, and is expected to reach 37% in 2026. This explosive growth in the liquid cooling industry presents unprecedented opportunities for core components such as sensors.
2. Full‑Range Sensor Portfolio – Building a Complete Sensing Barrier for Liquid Cooling Systems
The stable operation of liquid cooling systems relies heavily on precise monitoring and intelligent control of key parameters, including flow, pressure, temperature, liquid level, and leakage. With years of deep expertise in sensors and controllers, [KATU] offers a comprehensive product line that addresses all monitoring needs across liquid cooling applications:
Flow Sensors
Accurately monitor coolant flow in cooling pipelines to ensure stable supply, and quickly detect anomalies such as pipe blockages, insufficient flow, or air bubbles. In both main and branch lines of AI server cluster cooling systems, reliable flow monitoring is fundamental to maintaining chip thermal performance.
Pressure Sensors
Continuously measure pressure at critical points in the coolant loop. By analyzing differential pressure variations, they enable early identification of leakage risks, pump failures, or filter clogging. Combined with flow data, they facilitate precise hydraulic balance control of the cooling circuit.
Temperature Sensors
Track inlet and outlet coolant temperatures and their differentials throughout the system. A small differential may indicate filter clogging or insufficient flow, while a large differential suggests abnormal load. Accurate temperature data provides the core basis for dynamic system tuning to maintain optimal heat dissipation.
Liquid Level Sensors
Whether in immersion cooling or closed‑loop cold‑plate cooling, stable coolant levels are essential for effective heat removal and operational safety. These sensors prevent risks of downtime due to low level or overflow due to high level.
Position Sensors
Used in valve control, piping connection status monitoring, and similar scenarios, position sensors deliver precise feedback for automated control and safety interlocking of the liquid cooling system.
3. From “Point” to “Network” to “Intelligence” – Enabling Smart Upgrades of Liquid Cooling Systems
Modern liquid cooling systems are far more complex than traditional air cooling. Factors such as pump operating status, filter cleanliness, coolant quality, and hydraulic balance collectively determine the system’s thermal margin and operational stability. [KATU]’s sensors do more than just single‑parameter monitoring – through digital interfaces like IO‑Link and RS485, they seamlessly upload real‑time data to PLCs, SCADA systems, or cloud platforms.
Through multi‑sensor data fusion and intelligent analytics, liquid cooling systems can evolve from passive response to predictive maintenance – enabling early warnings of equipment aging, bearing wear, piping anomalies, and other faults, thereby significantly reducing unplanned downtime and long‑term operating costs.
Liquid cooling has become an irreversible technology trend in the AI computing era, and sensors – as the “nerve endings” of liquid cooling systems – are growing increasingly critical. [KATU] will continue to leverage its full‑range sensor portfolio covering flow, pressure, temperature, liquid level, and position, offering high‑precision, high‑reliability, and intelligent sensing technologies. We are committed to working hand in hand with partners across the liquid cooling industry chain to drive the ongoing evolution of data centers toward higher density and greater energy efficiency.
[KATU Electronics (Kunshan) Co., Ltd.] is a high-tech enterprise dedicated to the R&D, production, and sales of sensors and controllers. Our core product portfolio covers flow, pressure, temperature, liquid level, and position sensors, along with matching controllers. These products are widely applied in industrial automation, new energy, data centers, and intelligent manufacturing. Driven by technological innovation, we are committed to providing reliable sensing and control solutions to customers worldwide.