The size of centrifugal type FD & ID fans shall be designed by incorporating necessary safety provisions for a minimum discharge capacity of 25% higher than the theoretical air requirement which is generally kept at 30% excess air at MCR & head 25% more than requirement.
FD fan capacity–8,000cfm with dynamically balanced impellers ensuring vibration free operation suitably designed to meet the requirement complete with motor.
ID fan capacity-10,000cfm with dynamically balanced impellers ensuring vibration free operation designed to meet the requirement complete with motor.
