High Airflow Vs Static Pressure Fans

Following on from my last article where i looked at whether push vs pull vs push pull makes a difference today we are looking at static pressure fans vs airflow fans.

High airflow vs static pressure fans.

This is a highly efficient design to move airflow volume with the least amount of fan blade noise. Sometimes static pressure is given as pascals pa. For comparison 1 pound per square inch static pressure 1 psi is equal to 27 7 in. The relationship between air flow and static pressure of a fan is shown in the graph above.

Airflow is the amount of air which is the fan is capable of removing at its greatest rpm. And when static pressure increases air flow decreases. When it has no restrictions. High airflow fans can run into problems when.

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. The static pressure of one inch of water is the suction needed to draw water up a straw one inch. Using the fan in the wrong scenario will affect your cooling to a great extent. So what exactly is airflow and static pressure.

In case of static pressure and air flow fans there are a lot of difference. As you can see air flow and static pressure have a negative correlation. Af style fans have many thin blades 9 15 typically with a relatively steep angle. The two opposite ends of the blade design spectrum are the af airflow and sp static pressure designed fans.

When air flow increases static pressure decreases. The static pressure of 0 1 inches of water in.