FDFB-20

General information
Equipment type: Forced draft fan
Name: FDFB-20
English name: VDN-20
Notes: Backward curved blades
FDFB-20

FDFB-20

Description for FDFB-20
Single inlet centrifugal FD Fans are used for air delivery into combustion chambers of boilers with the capacity of 2.5- 950 t/h operating with balanced draft (secondary blast). It is allowed to use these fans in processing systems to handle air with the temperature not more than 70 °C. Single inlet centrifugal FD Fans can have right-hand or left-hand rotational direction. The right-hand rotation is in a clockwise order and it should be defined at electric motor side. The main units of Single inlet centrifugal FD Fan are: running wheel, running gear, scroll casing, inlet bell and axial guide vanes. The blades of impeller are backward curved.
Aerodynamic characteristics
Capacity: 215 ths. m3/h
Total pressure: 4710 Pa
Temperature: 100 °C
Efficiency: 87 %
Dimensions*
Length (L): 3520 mm
Width (W): 4710 mm
Height (H): 3840 mm
Weight: 5 660 kg
Electric motor
Actuator power?: 400 kW
Rotation frequency: 1000 rpm
Moment of inertia: 500 kg*m2
Overall drawing FDFB-20 *
FDFB-20
* Dimensions may vary depending on the electric motor model, customer requirements and design constraints.
Railway delivery options
Platforms: 1
Wagons: 0
Transporters: 0
Additional components
Actuator: 630 Nm