Forward Curved Centrifugal Fans

Forward Curved Centrifugal Fans

Our range of forward curved centrifugal fans are available in single inlet and double inlet for a wide range of low and medium pressure applications.

Many of the fans in the range have external rotor motors. These are usually contained within the width of the fan housing, thus saving the space normally occupied by a standard motor. They are located in the air stream, so temperature is limited, and are generally of protection class IP44, so the air needs to be clean and dry to avoid motor contamination.

Low cost speed control is possible by supply voltage variation, either by electronic (triac) method or by transformer. As the scroll housings of single inlet fans are in fabricated steel it is possible to have detachable discharge flanges, which means that the fan can be mounted on its air inlet side.

Low Pressure Centrifugal Fans AC

Our range of inch blowers are available to buy online, click on the product code below to be taken to the item’s page.

Product Code
Size (cm)
Voltage (V)
Speed (rpm)
Motor Range (kW)
Max Current (A) (230V)
Max Current (A) (400V)
Starting Current (A) (230V)
Starting Current (A) (400V)
Max Flow Rate (m3/h)
Sound Level (dB(A))
Weight (kg)
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BD-7/7-M4-0.13kW 19/19 230V 1390 0,13 1,55 4,65 1940 61 9
BD-7/7-M6-0,04kW 19/19 230V 885 0,04 0,60 1,80 1082 52 9
BD-9/7-M4-0,35kW 25/20 230V 1375 0,35 2,70 8,10 2535 60 15
BD-9/7-M6-0,13kW 22/20 230V 940 0,13 1,30 3,90 2045 58 15
BD-9/9-M4-0,35kW 25/25 230V 1350 0,35 2,70 8,10 2815 64 16
BD-9/9-M6-0,13kW 25/25 230V 940 0,13 1,30 3,90 2240 61 16
BD-10/8-M4-0,59 kW 28/21 230V 1340 0,59 4,50 13,50 3440 65 20
BD-10/8-M6-0,21kW 28/21 230V 945 0,21 2,10 6,30 2625 64 20
BD-10/10-M4-0,59kW 28/28 230V 1330 0,59 4,50 13,50 3785 66 22
BD-10/10-M6-0,21kW 28/28 230V 945 0,21 2,10 6,30 2855 64 22
BD-12/9-M6-0,76kW 33/25 230V 950 0,76 6,70 20,10 5860 67 24
BD-12/9-T6-1,1kW 33/25 230V 945 1,10 6,54 19,62 3,78 11,34 6200 65 26
BD-12/12-M6-0,76 kW 33/33 230V 950 0,76 6,70 20,10 6275 67 27
BD-12/12-T6-1,1kW 33/33 230V 945 1,10 6,54 3,78 6940 68 27

Low Pressure Centrifugal Fans EC

 

Product Code
Size (cm)
Voltage (V)
Speed (rpm)
Motor Rating (kW)
Max Current (A) (230V)
Starting Current (A)(230V)
Max flow Rate (m3hr)
Sound Level (dB(A))
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BD 7/7 M4 EEC80 19/19 230 1400 0.31 2.93 2.93 2051 60
BD 7/7 M6 EEC80 19/19 230 900 0.09 0.91 0.91 1305 52
BD 9/7 M4 EEC80 25/20 230 1400 0.65 0.54 0.54 2996 60
BD 9/7 M6 EEC80 25/20 230 900 0.24 2.32 2.32 2180 57
BD 9/9 M4 EEC80 25/25 230 1400 0.65 5.5 5.5 3375 64
BD 9/9 M6 EEC80 25/25 230 900 0.27 2.6 2.6 2540 60
BD 10/8 M4 EEC80 28/21 230 1400 0.65 5.5 5.5 3456 65
BD 10/8 M6 EEC80 28/21 230 900 0.5 4.3 4.3 3180 64
BD 10/10 M4 EEC80 28/28 230 1400 0.65 5.5 5.5 3862 66
BD 10/10 M6 EEC80 28/28 230 900 0.5 4.4 4.4 3525 64
BD 12/9 M6 EEC130 33/25 230 900 1.04 7.58 7.58 6020 67
BD 12/12 M6 EEC130 33/33 230 900 1.17 8.48 8.48 7235 67

Low Pressure Centrifugal Fans Inch Blower Dimensions & Flanges

Inch Blower Dimensions

Inch Blower Dimensions

Flange
A
B
C
D
F
G
H
E
Flange 7/7 293 131.5 272 121 208.5 230.5 30.4 10
Flange 9/7 296 133 321 145.5 260.5 235.5 30.4 10
Flange 9/9 360 165 321 145.5 258.5 299.5 30.4 10
Flange 10/8 324 147 351 160.5 290 263 30.4 10
Flange 10/10 389 179.5 351 160.5 290 328 30.4 10
Flange 12/9 370 170 401 185.5 341 310 30.4 10
Flange 12/12 455 212.5 400 185 339 394 30.4 10

MB Medium Pressure Forward Curved Fans

Model Product Code & Curve
Phase
Impeller Diameter (mm)
Motor Size (kW)
RPM Motor
imax 230V
imax 400V
Weight Motor (kg)
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MB 12/5 M4 0,08kW Medium Pressure Centrifugal Fan 1 92,5 0,08 1370 0.09 5
MB 12/5 T4 0,08kW Medium Pressure Centrifugal Fan 3 92,5 0,08 1400 0,035 0,2 5
MB 14/5 M4 0,08kW Medium Pressure Centrifugal Fan 1 115 0,08 1370 0,9 6
MB 14/5 T4 0,08kW Medium Pressure Centrifugal Fan 3 115 0,08 1400 0,035 0,2 5
MB 16/6 M4 0,08kW Medium Pressure Centrifugal Fan 1 127 1370 0,9 7,5
MB 16/6 T4 0,08kW Medium Pressure Centrifugal Fan 3 127 0,08 1400 0,035 0,2 5
MB 20/8 M2 1,1kW Medium Pressure Centrifugal Fan 1 161 1,1 1400 7,45 19
MB 20/8 T2 1,1kW Medium Pressure Centrifugal Fan 3 161 1,1 2800 4,05 2,33 16
MB 22/9 T2 1,1kW Medium Pressure Centrifugal Fan 3 180 1,1 2800 4,05 2,33 16
MB 25/10 T2 2,2kW Medium Pressure Centrifugal Fan 3 203 2,2 2840 7,97 4,58 25
MB 25/10 T2 3kW Medium Pressure Centrifugal Fan 3 203 3 2880 10,3 5,92 38.5
MB 25/10 T4 0,75kW Medium Pressure Centrifugal Fan 3 203 0,75 1410 2,83 1,63 15
MB 28/11 T4 1,1kW Medium Pressure Centrifugal Fan 3 228 1,1 1450 4,33 2,49 23

MB Medium Pressure Material Handling Fans

Model
Phase
Poles
Code
Pressure
RPM
Rated I (A) 400V
Rated Power kW
Airflow m3/h
Sound dB(A)
Weight
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MB 22/9 T2 1,1kW P/R Three 2 253210160 Medium Pressure 2800 2,33 1,1 2.100 70 23
MB 25/10 T2 1,5kW P/R Three 2 253280160 Medium Pressure 2800 3,14 1,5 2.550 72 31
MB 28/11 T2 2,2kW P/R Three 2 253360161 Medium Pressure 2800 4,58 2,2 4.500 75 40
MB 31/12 T2 3kW P/R Three 2 253450160 Medium Pressure 2870 5,92 3 5.300 77 55
MB 35/14 T2 5,5kW P/R Three 2 253480161 Medium Pressure 2900 10,6 5,5 7.800 80 85
MB 40/16 T2 7,5kW P/R Three 2 253510160 Medium Pressure 2900 14,1 7,5 9.500 84 103
MB 45/18 T2 11kW P/R Three 2 253530160 Medium Pressure 2630 20,8 11 10.500 87 180
MB 45/18 T2 15kW P/R Three 2 253530161 Medium Pressure 2930 27,4 15 12.500 88 191

Technical Articles

Read our technical article on What causes an unbalanced impeller?

Applications

electronic enclosure cooling
heat recovery units
Fan Coil Unit

Products in this Range

BD Low Pressure Centrifugal Fans | Inch Blowers

Available in AC and EC, ideal for air conditioning units, ventilated workbenches and cooling coils

ERAD & ERAE Forward Curved Centrifugal Fans

Single inlet fan for clean air applications and air conditioning

GDS Forward Curved Centrifugal Fans

Double inlet cost effective fan ideal for fan coil units and air curtains

MB Medium Pressure Centrifugal Fans

Straight blade or backward curved impeller designed for material handling