Key information for the right choice of fan

Do you want the best fan? Until we know what you actually need for your specific application, we can't know what's best. After putting together four key pieces of information, with the right specifications, Leapin's engineers were able to determine a short list of options so that we could clearly select a fan.

The right choice of fan depends on four key information:

1. Volumetric Flow Rate

The most basic and obvious piece of information when choosing a fan is the air flow rate of the fan. Volumetric flow measures the volume of air at the fan inlet over a period of time. We usually calculate and specify air flow in cubic metres per hour or cubic feet per minute (CFM).

2. Fan Static Pressure

Fan static pressure is calculated as the difference between the pressure required at the fan outlet and the pressure at the fan inlet plus the velocity pressure. It is measured by means of a water level gauge and is usually reported in inches of water column (wc) or water gauge (wg).

3. Inlet Air Density

The third piece of information we need when selecting a fan is the inlet air density. We use three key factors to calculate inlet air density (the fourth factor has the least impact for most applications):

• Temperature
• Mounting height
• Fan inlet pressure
• Humidity

4. Intended Fan Duty

The last piece of information we need in order to advise you on the right choice of fan is the task you want the fan to handle. Often, more than just air passes through a fan. For example, we need to know what your fan will handle:

• Clean air
• Saturated gas
• Material particles
• Dirty air

When you are ready to start your project, please leave contact details so that we can discuss the details of your specification with you, or feel free to contact us for a quote or catalogue for more details.