Backward Curved Fans

backward-cur-fan

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.

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Dimensions of Backward Curved Fans (mm)

Model

A

B

C

D

E

F

G

H

I

BCF – 133

133

60

90.5

40

93

660

87

13

129

BCF – 175

175

62

69

42.4

131

660

125

14

170

BCF – 190

190

61.5

68.5

44.6

133

660

125

14

170

BCF – 220

222.5

64

71

44

161.5

660

156.2

21

252

BCF – 225AA

225

63.8

69

38

153

660

145

28

223

BCF – 225BB

225

89

101

62.5

154

500

145

28

223

BCF – 250

251

85.3

99

56.6

174

550

167

33

255

BCF – 315

315

138

176.5

90

220

450

210

27

300

BCF – 355

355

148

186.5

95

280

490

239

31

350

BCF – 400

400

146

184.5

95

270

450

255

58

370

Specifications of Backward Curved Fans

Model

Size

mm

Phase

Voltage
(VAC)

Frequency (Hz)

Current
(A)

Power
(W)

Speed (RPM)

Airflow
(M³/hr)

Noise
dBA

Cap
μf/450V

wt Kg

BCF – 133

Ф133×60

Single

230

50/60

0.20/0.20

33/33

2550/2780

220/230

60/62

-

1.0

BCF – 175

Ф175×62

Single

230

50/60

0.39/0.34

61/62

2350/2200

440/420

63/62

-

1.2

BCF – 190

Ф190×62

Single

230

50/60

0.39/0.48

87/109

2600/2900

570/630

68/71

3

1.6

BCF – 220

Ф220×64

Single

230

50/60

0.4/0.50

95/120

2400/2600

800/865

69/71

3

2.7

BCF
225AA

Ф225×64

Single

230

50/60

0.53/0.64

110/145

2650/2950

860/950

72/75

3

2.4

BCF
225BB

Ф225×89

Single

230

50/60

0.80/0.86

147/195

2680/3100

1200/1350

74/78

5

2.7

BCF – 250

Ф250×86

Single

230

50/60

0.76/1.08A

173/245

2600/2790

1400/1460

75/76

5

3.0

BCF – 315

Ф315×138

Single

230

50

0.65

140

1380

1550

64

4

4.5

BCF – 355

Ф355×148

Single

230

50

0.83

180

1380

2250

66

6

5.6

BCF – 400

Ф400×146

Single

230

50

1.09

240

1365

2600

68

8

6.8

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