Choosing the right fan, is not done by looking only at the physical size of the product. Air flow rate, system pressure, working environment and engine characteristics should be evaluated together. Technical evaluation with accurate information helps determine the product suitable for the application.
1. Determine air flow rate
The amount of air that needs to be moved in a certain period of time is one of the basic data for fan selection. Flow rate is usually m³/h (cubic meter/hour) or m³/dk It is expressed in terms of . It should be stated for which working conditions the calculated need applies.
2. Define the required system pressure
What the fan must meet during operation static or total pressure should be clarified. Relevant values can be reported in Pa, mmSS or mbar units. Channels, filters and other installation elements are important in the evaluation.
3. Share the characteristics of the air or gas to be transported
air or gas density, temperature and environmental conditions may affect product selection. If there is moisture, process-derived components or special operating conditions, this should be reported prior to technical evaluation.
4. Assess the work environment
acceptable noise level, working time and usage conditions should be determined. Situations such as high temperature, humid weather or air containing chemical components may require special materials and construction.
5. Clarify engine and electrical infrastructure
The following information must be available for the energy source from which the engine will be fed:
- Use of direct current (DC) or alternating current (AC)
- Single phase or three phase supply in AC use
- Supply voltage and relevant operating values
- Suitable if there is a risk of explosive atmosphere Ex-proof design and regulatory requirements
6. Plan plumbing layout and auxiliary equipment
Number of fans required, air inlet-outlet direction, the horizontal/vertical/inclined position of the motor shaft and the damper, filter or other equipment to be added to the system must be determined in advance. This information makes it easier to evaluate installation and application compatibility.
Does your application require a technical evaluation?
You can get information about product options from the Erva Ventilator team by sharing your flow rate, pressure, environmental conditions and installation information.
