Technical resources for fan selection, airflow, static pressure, motor configuration, and export documentation.
⚙️ Technical Guide
Sizing Rectangular Duct Fans Without Oversizing
·3 min read
Working out duct resistance before picking a model, why the safety margin buyers add usually makes the installation worse, and the effect of fittings placed too close to the inlet.
Why forward-curved wheels are smaller for the same airflow, why backward-curved wheels are non-overloading, and the one failure mode that catches out anyone substituting the cheaper option.
Efficiency at full load versus part load, the running hours needed before an EC fan pays for its price premium, and the three installations where AC remains the better engineering choice.
