High airflow fans simply push as much air as possible while static pressure fans are specifically designed to tackle installations with heightened impedance and resistance.
Static pressure fans vs high air flow.
Most manufacturers performance charts are based on fan static pressure.
Static pressure optimized fans made to push the air harder through small spaces.
So there are two situations where you might think of choosing between a static pressure fan and an air.
It can be expressed in these terms.
A fan performance spec is given as a fan total pressure or a fan static pressure which can handle a certain flow rate.
Static pressure fans feature large blades fewer flat blades and small gap between the body and the fan blade which holds them together.
All other components create.
What fan should you use.
For mechanical ventilation systems the fans create positive static pressure to move air through a given system.
The 3 points depict possible scenarios where the fan will perform.
When air flow increases static pressure decreases.
Fan total pressure is the pressure differential between the inlet and the outlet of the fan.
With static pressure fans vs airflow fans the fan blade structure is the main difference between these types of fans.
The relationship between air flow and static pressure of a fan is shown in the graph above.
And when static pressure increases air flow decreases.
As you can see air flow and static pressure have a negative correlation.