Key points of product selection
1, if the power is not guaranteed during the war period, it is necessary to choose an electric and manpower dual purpose fan to ensure the reliability of ventilation.
2. Exhaust fan The type selection should be determined according to the air volume and pressure loss of the intake system.
3. When calculating the air volume and pressure loss, we should calculate the fresh air volume and the fresh air volume during the ventilation and the pressure loss under the corresponding air volume respectively.
4. If a fan is used for cleaning ventilation and ventilation, the difference between the ventilation and the pressure loss of the fans under the two ventilation modes should be taken into account. If the cleaning ventilation and ventilation are set separately, the different intake fans shall be selected according to the fresh air volume and pressure loss of the clean ventilation, the fresh air volume and the pressure loss of the ventilation and ventilation.
Tags: Exhaust fan Fan manufacturer Smoke exhausting fan for fire fighting