At what pressure is it recommended to use a blower instead of a fan?

Using a blower instead of a fan is recommended at pressures around 7 psi due to the specific applications and performance characteristics of the two types of devices. Blowers are designed to handle higher pressures and move smaller volumes of air compared to fans, which are optimized for moving larger volumes at lower pressures.

At around 7 psi, blowers can operate effectively and efficiently, fulfilling tasks that require more concentrated airflow, such as pneumatic conveying or specific ventilation needs in industrial applications. This pressure threshold is typically where the performance characteristics of blowers start to surpass those of fans, making them the preferable choice for applications demanding higher pressure output.

Choosing to use a fan instead of a blower at this pressure range would not yield the desired efficiency or effectiveness due to the fan's limitations in generating the necessary airflow against the static pressure.