Typical pressure - or head - loss in a HVAC damper:
Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.
The equal friction method for sizing air ducts is easy and straightforward to use.
How to modulate fans and their capacities.
Sound power noise generated by blade dampers in ventilation systems.
Dampers in ventilation systems may be classified through function, construction or leakage class.