Static Pressure Fans Vs High Air Flow

All other components create.

Static pressure fans vs high air flow.

The 3 points depict possible scenarios where the fan will perform. The relationship between air flow and static pressure of a fan is shown in the graph above. What fan should you use. And when static pressure increases air flow decreases.

Specifically i will be using corsair s sp120 and af120 models as these are very popular fans and have clearly defined characteristics sp for static pressure af for airflow. It can be expressed in these terms. 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. With static pressure fans vs airflow fans the fan blade structure is the main difference between these types of fans.

Static pressure fans feature large blades fewer flat blades and small gap between the body and the fan blade which holds them together. Fan total pressure is the pressure differential between the inlet and the outlet of the fan. As you can see air flow and static pressure have a negative correlation. Most manufacturers performance charts are based on fan static pressure.

Static pressure fans come with wider blades but the gaps between the main difference has a direct connection with how the fans are optimized because the cooling system works differently. Static pressure optimized fans made to push the air harder through small spaces. When air flow increases static pressure decreases. A fan performance spec is given as a fan total pressure or a fan static pressure which can handle a certain flow rate.