Hydro-Air GFCL Ultrasonic Flowmeter

Reliable Flow Monitoring for Data Centre Liquid-Cooling Systems

The Hydro-Air GFCL-EM Ultrasonic Flowmeter is designed for continuous water-flow monitoring in modern data centre liquid-cooling infrastructure. It is suitable for cabinet-type and platform-type CDUs, cold-plate cooling circuits, single-phase immersion cooling systems, and cooling-tower loops.

Continuous flow feedback supports refined thermal management, helping reduce thermal blockage and maintain stable, efficient cooling operation in high-density computing environments. Its compact, non-invasive clamp-on design installs externally on the pipe, eliminating pipe cutting and allowing installation without shutting down the cooling system.

Designed for Data Centre Cooling

• No system shutdown during installation
  Clamp-on installation allows the meter to be fitted to an operating cooling circuit without cutting or modifying the pipe.
• Continuous cooling-flow visibility
  Monitor flow conditions across CDUs, cooling cabinets, cold-plate loops and immersion-cooling systems.
• Compact for restricted spaces
  The small all-in-one design is suitable for installation around cabinets, equipment skids and other space-limited areas.
• Easy system connectivity
  RS485 communication with MODBUS protocol and a 4–20 mA output support connection to compatible monitoring and control systems.
• Clear local indication
  The 1.54-inch TFT-LCD colour display provides clear operating information and can be rotated in four directions for easier viewing.

Operating Range