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 Backward Curved Fans

 
Backward Curved Fans
 

What are Backward Curved Fans?

Backward Curved Fans also known as Radial Fans are Centrifugal Fans with Backward Curved Blades. These Centrifugal Fans provide very good cooling at high pressure conditions. The impellers of these industrial fans are highly resistant to dirt & dust.

Hicool manufactures Backward Curved Fans of frequency 50Hz and 60Hz. These industrial fans are available in various wheel diameters ranging from 133mm to 400mm. These fans are available in 230 VAC.

Backward curved fans are known as “non overloading” because changes in static pressure do not overload the motor. Its hydraulic efficiency is very high. These External Rotor Motor Fans are ideal for cooling at high pressure conditions.

 

Dimensions of a Backward Curved Fan

 

Dimensions (mm)

Model

A

B

C

D

E

F

G

H

I

BCF - 133

133

53.6

77.5

42

93

600

87

13

129

BCF - 180

180

49

69

35

131

930

125

14

170

BCF - 190

192

60

70

40

132

930

125

14

170

BCF - 220

220

63

71

45

159

930

156.2

21

252

BCF - 225AA

227

65.3

79

40

153

930

145

28

223

BCF - 225BB

225

90

99

63

159

930

145

28

223

BCF - 250

252

84.3

102

56

172

930

167

33

255

BCF - 355

359

174

195

121

250

520

239

31

350

BCF - 400

413

185

236

123

270

990

255

58

370

 

Specifications

Model

Size
mm

Phase

Voltage (VAC)

Frequency (Hz)

Current (A)

Power (W)

Speed (RPM)

Airflow (M/hr)

Noise dBA

Cap μf/450V

wt Kg

BCF - 133

Ф130×54

Single

230

50

0.12

26

2550

220

60/62

1

1

BCF - 180

Ф180×49

Single

230

50/60

0.40/0.34

61/66

2500/2700

440/470

59/62

2

1.2

BCF - 190

Ф192×60

Single

230

50/60

0.39/0.48

80/90

2400/2600

 570/630

62/65

2

1.6

BCF - 220

Ф220×63

 Single

230

50/60

0.44/0.50

95/120

2400/2600

800/865

65/68

3

2.7

BCF - 225AA

Ф225×65

Single

230

50/60

0.53/0.64

110/145

2500/2700

860/950

68/71

3

2.4

BCF - 225BB

Ф225×90

Single

230

50/60

0.65/0.80

147/195

2500/2650

1220/1350

68/72

4

2.7

BCF - 250

Ф250×82

Single

230

50/60

0.83/1.13

190/250

2700/3030

1540/1660

74/76

6

3

BCF - 355

 Ф355×174

Single

230

50

1.12

245

1400

2800

74

8

5.6

BCF - 400

Ф400×185

Single

230

50

1.6

370

1370

3663

77

12

6.8

Available in DC Voltages

Few sizes available in 3 Phase

Specifications subject to change without notice

 

Applications of a Backward Curved Fan:

Backward curved fans are used in Low Air Flow and High Pressure Industrial Applications such as:

  • Panel ACs
  • Air Handling Units
  • Clean Rooms
  • Conveying
  • Drying
 

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