Airflow measurement is far more than a mere formality—it’s the cornerstone of system control. Insufficient airflow can expose operators to health hazards or disrupt processes, while excessive flow drives up energy costs and accelerates fan wear.

Accurate measurement is essential for real-time flow adjustments, verifying dust collection efficiency, and proving compliance with standards. KIMO differential pressure sensors provide the ideal solution, seamlessly connecting to pitot tubes or measuring wings to deliver precise flow calculations.

The positioning of pitot tubes is crucial for accurate measurement. Readings should be taken in a straight section of the duct where airflow is stable. In practice, this means installing these components well away from bends, valves, or any obstacles that could create turbulence.

L-shaped pitot tubes, quickly mounted along the flow axis, are ideal for most duct systems. For demanding industrial environments—such as those with fumes, dust, or high temperatures—S-shaped tubes are recommended. In large ducts, using multiple measurement points ensures a reliable average.

When airflow profiles are highly disturbed or ducts are particularly large, measuring blades offer an excellent alternative. Equipped with multiple pressure taps distributed along their length, they provide multipoint measurements that accurately represent the total flow rate.

Installed in either a cross or parallel configuration and available with ECTFE coating, measuring blades have become a benchmark in industrial extraction systems, complex ventilation networks, and pollutant exhaust chimneys. Combined with KIMO pressure sensors featuring an adjustable integration coefficient, they ensure reliable measurements even under the most demanding conditions.

For more information, check out our Air Conditionning and Ventilation brochure