radial fans · 2019-06-25 · 3 radial fans from Östberg - the fan company radial fans from ab...

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RF, RB, DFRadial fans

Fresh air from

R A D I A L F A N S . . . . . . . . . . . . . . . . . . . .3

R F E 1 2 0 M . . . . . . . . . . . . . . . . . . . . . . . .4R F E 1 4 0 A . . . . . . . . . . . . . . . . . . . . . . . .4R F E 1 4 0 B . . . . . . . . . . . . . . . . . . . . . . . .5R F E 1 4 0 C . . . . . . . . . . . . . . . . . . . . . . . .5R F E 1 4 0 D . . . . . . . . . . . . . . . . . . . . . . . .6R F E 1 4 0 L . . . . . . . . . . . . . . . . . . . . . . . . .6R F E 1 4 0 M . . . . . . . . . . . . . . . . . . . . . . . .7R F E 1 4 6 D . . . . . . . . . . . . . . . . . . . . . . . .7R F E 1 6 0 A . . . . . . . . . . . . . . . . . . . . . . . .8R F E 1 6 0 C . . . . . . . . . . . . . . . . . . . . . . . .8R F E 2 0 0 A . . . . . . . . . . . . . . . . . . . . . . . .9R F E 2 0 0 B . . . . . . . . . . . . . . . . . . . . . . . .9R F E 2 0 0 C . . . . . . . . . . . . . . . . . . . . . . .1 0R F E 2 0 0 P . . . . . . . . . . . . . . . . . . . . . . .1 0R F E 2 0 0 R . . . . . . . . . . . . . . . . . . . . . . .1 1R F E 2 0 0 S . . . . . . . . . . . . . . . . . . . . . . .1 1R F E 2 2 5 B . . . . . . . . . . . . . . . . . . . . . . .1 2R F E 2 2 5 D . . . . . . . . . . . . . . . . . . . . . . .1 2R F E 2 2 5 D . . . . . . . . . . . . . . . . . . . . . . .1 3R F T 2 5 0 A . . . . . . . . . . . . . . . . . . . . . . .1 3R F E 2 5 0 B . . . . . . . . . . . . . . . . . . . . . . .1 4R F T 2 5 0 B . . . . . . . . . . . . . . . . . . . . . . .1 4R F E 2 8 0 D . . . . . . . . . . . . . . . . . . . . . . .1 5R F T 2 8 0 D . . . . . . . . . . . . . . . . . . . . . . .1 5R F E 2 8 0 F . . . . . . . . . . . . . . . . . . . . . . .1 6R F T 2 8 0 F . . . . . . . . . . . . . . . . . . . . . . .1 6R F T 2 8 0 S . . . . . . . . . . . . . . . . . . . . . . .1 7R F E 3 1 5 C . . . . . . . . . . . . . . . . . . . . . . .1 7R F T 3 1 5 C . . . . . . . . . . . . . . . . . . . . . . .1 8R F E 3 1 5 E . . . . . . . . . . . . . . . . . . . . . . .1 8R F T 3 1 5 E . . . . . . . . . . . . . . . . . . . . . . .1 9R F T 3 5 5 A . . . . . . . . . . . . . . . . . . . . . . .1 9R F T 3 5 5 B . . . . . . . . . . . . . . . . . . . . . . .2 0R F T 3 5 5 D . . . . . . . . . . . . . . . . . . . . . . .2 0R F T 4 0 0 C . . . . . . . . . . . . . . . . . . . . . . .2 1R F T 4 0 0 E . . . . . . . . . . . . . . . . . . . . . . .2 1R F T 4 0 0 F . . . . . . . . . . . . . . . . . . . . . . .2 2R F T 4 5 0 G . . . . . . . . . . . . . . . . . . . . . . .2 2R F T 4 5 0 H . . . . . . . . . . . . . . . . . . . . . . .2 3

R B E 1 9 0 C . . . . . . . . . . . . . . . . . . . . . . .2 4R B E 2 8 0 C . . . . . . . . . . . . . . . . . . . . . . .2 4

D F E 1 3 3 - 2 . . . . . . . . . . . . . . . . . . . . . . .2 5D F E 1 3 3 - 4 . . . . . . . . . . . . . . . . . . . . . . .2 5D F E 1 3 3 - 2 0 . . . . . . . . . . . . . . . . . . . . .2 6D F E 1 3 3 - 2 1 . . . . . . . . . . . . . . . . . . . . .2 6D F E 1 3 3 - 2 2 . . . . . . . . . . . . . . . . . . . . .2 7D F E 1 3 3 - 2 3 . . . . . . . . . . . . . . . . . . . . .2 7D F E 1 3 3 - 2 4 . . . . . . . . . . . . . . . . . . . . .2 8D F E 1 4 6 - S 2 . . . . . . . . . . . . . . . . . . . . .2 8D F E 1 4 6 - S 4 . . . . . . . . . . . . 2 9

G E N E R A L F A N F A C T S . . . . . . .3 0 - 3 1

Contents

© AB C.A. Östberg, Avesta, Sverige, 2007. All rights reserved.No parts of this broschure may be reproduced or transmitted in any form or by any mean, without the written permission by AB C.A. Östberg.AB C.A. Östberg preserve the right to changes without further notice.

3

Radial fans from Östberg - The Fan Company

Radial fans from AB C.A. Östberg

have high capacity, high pressure, low

sound levels och a very compact de-

sign. This makes them ideal for use in

so many different applications. They

can also be used as duct fans when a

high pressure and a low sound level

are necessary.

The radial fans are manufactured

from galvanized sheet steel. The

impellers are directly driven by an

external rotor motor with built in

thermal protection. The motor is

situated in the airstream to get ulti-

mate cooling. That’s why stepless,

variable speed regulation is possible.

The ball bearing motor is virtually

maintenance free and the only ser-

vice task required is the occasional

cleaning of the impeller.

All radial fans from AB C.A. Öst-

berg are CE marked, moisture resi-

stant and approved for external use.

R F

A N D R B

S I N G L E I N L E T

R A D I A L F A N S

RF, single inlet radial fans are very

compact making them ideal for use

in heat pumps, heat exchanger, dehu-

midifiers, drying equipment etc.They

can of course be used as duct fans.

RF has a forward curved impeller

and is available for single or 3-phase

electrical supplies. RB has a back-

ward curved impeller and is available

for single phase electrical supplies.

Both fans are available with or

without a terminal box or a connec-

tion spigot.

D F

D O U B L E I N L E T

R A D I A L F A N S

DF, double inlet radial fan has an

external rotor motor placed in the

middle of the impeller, which makes

for a very compact design. DF fans

are ideal to use in different applica-

tions where high pressure, large air

volumes and low sound levels are

demanded but with only a minimum

amount of space is available, for

example heat exchangers.

DF has a forward curved impeller

and a single phase motor. The exter-

nal rotor motor has in-built overheat

protection as standard.

C L O C K W I S E R O T A T I O N with connection spigot

C O U N T E R C L O C K W I S E without connection spigot

Outlet view Inlet view Inlet view Outlet view

P R E S S U R E / F L O W

4

R F E 1 2 0 MSingle inlet radial fan with forward curved impeller. Single phase

R F E 1 4 0 ASingle inlet radial fan with forward curved impeller. Single phase

T E C H N I C A L D A T A

S O U N D D A T A

52ie

82xxxx

82

17390

89

175

Ød2

I N P U T / F L O W

R F E 1 2 0 M

RFE 120 M, 25 l/s 130 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 53 60 33 38 48 57 54 51 51 45

Inlet 65 55 56 62 61 53 48 48 40

Outlet 67 58 56 60 64 59 52 50 45

D I M E N S I O N S (mm)

A C C E S S O R I E S

Duct clamp, mounting bracket, safety grille, thermostat,

louvre & back draught shutter, transformer controllers

General fan facts, page 30-31.

Voltage, V/Hz 230/50

Current, A 0,29

Input, W 67

Speed, rpm 1510

Wiring diagram 4040001

Capacitor, µF 2

Max.temp. oC 75

Rotation direction Right

Pole number, motor 2

P R E S S U R E / F L O W T E C H N I C A L D A T A

S O U N D D A T AI N P U T / F L O W

R F E 1 4 0 A

RFE 140 A, 45 l/s 130 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 48 55 31 33 44 49 51 50 47 40

Inlet 63 49 57 58 57 53 51 50 43

Outlet 65 50 58 58 58 59 54 52 47






90173

8917

5

35

8235

125

125

92105

120

94115130

94

21694

149

255

Ø7,1

94216

149

255

35

6535

125

125


Current, A 0,28

Input, W 62

Speed, rpm 830


Capacitor, µF 4

Max.temp. oC 70



Connected = Connected on outlet.Not connected = Not connected on outlet.


5

R F E 1 4 0 BSingle inlet radial fan with forward curved impeller. Single phase

R F E 1 4 0 CSingle inlet radial fan with forward curved impeller. Single phase



R F E 1 4 0 B

RFE 140 B, 65 l/s 260 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 58 65 41 43 54 58 58 60 59 52

Inlet 70 56 64 65 65 60 60 59 56

Outlet 72 56 63 65 66 65 63 65 60








R F E 1 4 0 C

RFE 140 C, 80 l/s 280 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 59 66 40 43 55 60 59 62 60 53

Inlet 71 53 60 67 67 59 60 60 57

Outlet 74 56 63 66 67 66 66 64 64






92105

120

94115130

94

21694

149

255

Ø7,1

94216

149

255

40

9440

160

160

92105

120

94115130

94

21694

149

255

Ø7,1

94216

149

255

40

9440

160

160


Current, A 0,46

Input, W 105

Speed, rpm 1190


Capacitor, µF 2

Max.temp. oC 60




Current, A 0,56

Input, W 130

Speed, rpm 1700


Capacitor, µF 4

Max.temp. oC 60






R F E 1 4 0 DSingle inlet radial fan with forward curved impeller. Single phase

R F E 1 4 0 LSingle inlet radial fan with forward curved impeller. Single phase



R F E 1 4 0 D

RFE 140 D, 85 l/s 340 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 62 69 41 43 56 62 60 66 64 58

Inlet 72 53 62 67 68 61 63 62 60

Outlet 74 57 64 66 68 67 67 65 66








R F E 1 4 0 L






RFE 140 L, 40 l/s 125 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 52 59 34 42 48 53 54 54 51 44

Inlet 66 50 59 63 60 55 52 53 48

Outlet 68 54 61 64 62 60 56 57 53

92105

120

94115130

94

21694

149

255

Ø7,1

94216

149

255

40

9440

160

160

566884

84100115

84

18688

106

197

Ø7,1

88186

106

197

35

8435

125

125

6


Current, A 0,77

Input, W 185

Speed, rpm 2230


Capacitor, µF 4

Max.temp. oC 55




Current, A 0,27

Input, W 62

Speed, rpm 1240


Capacitor, µF 4

Max.temp. oC 80





R F E 1 4 0 MSingle inlet radial fan with forward curved impeller. Single phase


7



R F E 1 4 0 M

RFE 140 M, 40 l/s 265 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 63 70 49 49 58 63 64 65 62 60

Inlet 74 67 69 68 67 63 62 61 58

Outlet 76 67 67 68 69 67 69 65 62






566884

84100115

84

18688

106

197

Ø7,1

88186

106

197

35

8435

125

125


Current, A 0,41

Input, W 94

Speed, rpm 1940


Capacitor, µF 2

Max.temp. oC 80





R F E 1 4 6 D


Environment 64 71 40 42 55 63 64 68 65 60

Inlet 74 51 63 69 68 65 68 66 63

Outlet 77 53 64 70 71 70 70 68 68






92105

120

94115130

94

21694

149

255

Ø7,1

94216

149

255

40

9440

160

160


Current, A 0,91

Input, W 210

Speed, rpm 2525


Capacitor, µF 5

Max.temp. oC 60





R F E 1 6 0 ASingle inlet radial fan with forward curved impeller. Single phase.




R F E 1 6 0 A







Environment 50 57 29 35 48 54 52 49 45 40

Inlet 62 40 53 57 57 55 51 50 42

Outlet 64 44 55 56 59 61 51 51 47

92105

120

90109124

90

258100

144

233

Ø7,1

123275

180

316

40

8540

160

160

8



R F E 1 6 0 C


Environment 63 70 41 49 61 63 63 66 63 58

Inlet 74 59 65 70 67 66 66 64 62

Outlet 78 61 66 69 71 72 71 70 68






92105

120

90109124

90

258100

144

233

Ø7,1

94216

149

255

40

9440

160

160


Current, A 0,28

Input, W 64

Speed, rpm 1270


Capacitor, µF 2

Max.temp. oC 65




Current, A 1,30

Input, W 300

Speed, rpm 2150


Capacitor, µF 6

Max.temp. oC 50





9





R F E 2 0 0 A


Environment 58 65 32 37 52 58 60 60 57 52

Inlet 67 48 52 59 58 62 61 58 55

Outlet 70 48 52 60 62 66 633 62 58







Current, A 0,53

Input, W 125

Speed, rpm 1300


Capacitor, µF 3

Max.temp. oC 45

Rotation direction Left




R F E 2 0 0 B


Environment 57 64 37 42 55 57 60 58 55 47

Inlet 68 49 57 64 59 62 59 57 50

Outlet 71 52 59 65 63 66 62 61 54






156

250

300

120140156

120

320135

230

384

Ø9,1

135320

230

384

40

12040

200

200


Current, A 0,81

Input, W 185

Speed, rpm 950


Capacitor, µF 6

Max.temp. oC 60






R F E 2 0 0 PSingle inlet radial fan with forward curved impeller. Single phase



R F E 2 0 0 C







Environment 56 63 43 47 57 54 58 57 54 46

Inlet 68 57 60 64 58 61 58 58 50

Outlet 72 57 58 66 64 67 62 63 57

156

250

300

140160176

140

320135

230

384

Ø9,1

135320

230

384

40

14040

250

250

10



R F E 2 0 0 P

RFE 200 P, 75 l/s 530 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 69 76 39 45 59 67 69 73 68 62

Inlet 77 60 65 68 72 70 68 68 64

Outlet 78 59 63 69 74 72 68 68 66







Current, A 0,83

Input, W 190

Speed, rpm 1200


Capacitor, µF 6

Max.temp. oC 50




Current, A 0,80

Input, W 190

Speed, rpm 2230


Capacitor, µF 4

Max.temp. oC 50





11

R F E 2 0 0 RSingle inlet radial fan with forward curved impeller. Single phase

R F T 2 0 0 SSingle inlet radial fan with forward curved impeller. 3-phase



R F E 2 0 0 R

RFE 200 R, 115 l/s 525 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 67 74 41 47 57 66 68 69 67 62

Inlet 75 54 60 67 63 70 68 65 63

Outlet 76 56 56 64 66 74 67 67 64







Current, A 1,10

Input, W 260

Speed, rpm 2300


Capacitor, µF 4

Max.temp. oC 50





R F T 2 0 0 S

RFT 200 S, 90 l/s 745 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 71 78 43 47 60 67 72 76 71 67

Inlet 79 62 69 72 72 70 76 68 69

Outlet 82 65 67 71 74 75 78 75 68





Fakta om fläktar se sidorna 30-31.

275123

180

316

Voltage, V/Hz 3x400Y/3x230/50

Current, A 0,82/1,42

Input, kW 0,53

Speed, rpm 2340

Wiring diagram 4040004/4040003

Capacitor, µF -

Max.temp. oC 40



110

125

138

85105121

85

Ø7,1







R F E 2 2 5 B







Environment 57 64 35 38 50 57 60 58 53 44

Inlet 67 51 55 58 60 62 60 57 48

Outlet 69 50 55 60 64 63 62 60 51

168

182

318

140160180

140

354153

245

415

Ø9,1

153354

245

415

40

14040

250

250

12



R F E 2 2 5 D


Environment 66 73 42 47 61 63 69 68 65 60

Inlet 75 56 61 65 63 72 70 68 63

Outlet 78 57 62 68 69 74 71 70 65






168

182

318

140160180

140

354153

245

415

Ø9,1

153354

245

415

40

14040

250

250


Current, A 0,85

Input, W 190

Speed, rpm 885


Capacitor, µF 3

Max.temp. oC 80




Current, A 1,90

Input, W 425

Speed, rpm 1285


Capacitor, µF 8

Max.temp. oC 65





13



R F E 2 5 0 A


Environment 59 66 40 42 57 59 61 60 56 46

Inlet 68 54 57 62 62 57 61 59 50

Outlet 71 55 58 62 66 64 64 63 54






192

206

370

157177197

157

395167

284

475

Ø9,1

167395

284

475

40

15740

250

250


Current, A 1,50

Input, W 330

Speed, rpm 1420


Capacitor, µF 3

Max.temp. oC 50



R F T 2 2 5 DSingle inlet radial fan with forward curved impeller. 3-phase




R F T 2 2 5 D

RFT 225 D, 270 l/s 300 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 66 73 50 48 61 63 69 68 65 60

Inlet 75 55 59 65 63 72 70 68 63

Outlet 76 57 60 68 67 71 70 69 63






168

182

318

140160180

140

354153

245

415

Ø9,1

153354

245

415

40

14040

250

250



Input, W 445

Speed, rpm 1330


Capacitor, µF -

Max.temp. oC 60







R F E 2 5 0 B


Environment 67 74 45 52 65 65 70 69 67 59

Inlet 78 61 65 73 67 73 71 70 64

Outlet 80 63 68 71 73 74 74 74 67






192

206

370

157177197

157

395167

284

475

Ø9,1

167395

284

475

40

15740

250

250

14


Current, A 2,90

Input, kW 0,64

Speed, rpm 1315


Capacitor, µF 12

Max.temp. oC 50




R F T 2 5 0 BSingle inlet radial fan with forward curved impeller. 3-phase


S O U N D D A T A

192

206

370

157177197

157

395167

284

475

Ø9,1

I N P U T / F L O W

R F T 2 5 0 B

RFT 250 B, 380 l/s 375 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 66 73 44 50 62 65 69 68 66 59

Inlet 77 61 66 68 67 73 70 69 64

Outlet 80 63 64 70 72 74 74 74 67






167395

284

475

40

15740

250

250



Input, kW 0,69

Speed, rpm 1285


Capacitor, µF -

Max.temp. oC 60







R F E 2 8 0 D







Environment 61 68 42 50 63 60 63 61 58 49

Inlet 72 56 60 68 61 65 64 63 54

Outlet 75 60 60 70 68 67 67 67 58

207

215

401

175195215

175

436185

305

515

Ø9,1

185436

305

515

40

17540

315

315

15


Current, A 2,35

Input, kW 0,53

Speed, rpm 800


Capacitor, µF 5

Max.temp. oC 40







R F T 2 8 0 D


Environment 59 66 41 48 57 59 62 61 57 48

Inlet 69 55 58 60 60 64 62 61 52

Outlet 76 57 58 64 75 65 65 65 55






207

215

401

175195215

175

436185

305

515

Ø9,1

185436

305

515

40

17540

315

315


Current, A 0,83

Input, W 475

Speed, rpm 770


Capacitor, µF -

Max.temp. oC 45



16



R F E 2 8 0 F

RFE 280 F, 540 l/s 385 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 72 79 49 56 64 68 75 74 69 65

Inlet 81 63 67 71 68 77 76 74 70

Outlet 84 68 69 74 76 79 79 78 72






207

215

401

175195215

175

436185

305

515

Ø9,1

185436

305

515

40

17540

315

315


Current, A 5,50

Input, kW 1,2

Speed, rpm 1400


Capacitor, µF 20

Max.temp. oC 60



R F E 2 8 0 FSingle inlet radial fan with forward curved impeller. Single phase

R F T 2 8 0 FSingle inlet radial fan with forward curved impeller. 3-phase



R F T 2 8 0 F

RFT 280 F, 500 l/s 450 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 72 79 48 57 65 68 76 74 70 65

Inlet 80 64 67 69 66 76 74 73 68

Outlet 83 66 68 74 75 78 77 77 71






207

215

401

175195215

175

436185

305

515

Ø9,1

185436

305

515

40

17540

315

315



Input, kW 1,5

Speed, rpm 1400


Capacitor, µF -

Max.temp. oC 55



17



R F E 3 1 5 C


Environment 65 72 42 50 62 65 69 66 62 51

Inlet 74 59 64 66 65 69 68 67 57

Outlet 78 62 70 70 72 71 70 69 61






246

251

462

194219244

194

489210

355

594

Ø13,1

210489

355

594

45

19445

355

355


Current, A 3,45

Input, kW 0,75

Speed, rpm 900


Capacitor, µF 10

Max.temp. oC 75



R F T 2 8 0 SSingle inlet radial fan with forward curved impeller. 3-phase




R F T 2 8 0 S

RFT 280 S, 390 l/s 490 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 70 77 48 56 69 68 73 71 71 65

Inlet 80 63 68 72 70 74 73 74 70

Outlet 83 64 68 74 76 76 76 77 72






207

215

401

131151171

131

436185

305

515

Ø9,1

185436

305

515

40

13140

315

315



Input, kW 1,4

Speed, rpm 1290


Capacitor, µF -

Max.temp. oC 40



18



R F E 3 1 5 E

RFE 315 E, 580 l/s 545 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 73 80 52 61 66 71 77 74 70 63

Inlet 82 68 72 74 70 78 76 75 69

Outlet 87 70 71 76 79 83 80 78 72






246

251

462

194219244

194

489210

355

594

Ø13,1

210489

355

594

45

19445

355

355


Current, A 8,50

Input, kW 1,83

Speed, rpm 1400


Capacitor, µF 30

Max.temp. oC 50



R F T 3 1 5 CSingle inlet radial fan with forward curved impeller. 3-phase

R F E 3 1 5 ESingle inlet radial fan with forward curved impeller. Single phase


S O U N D D A T A

246

251

462

194219244

194

489210

355

594

Ø13,1

I N P U T / F L O W

R F T 3 1 5 C

RFT 315 C, 460 l/s 270 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 63 70 43 50 58 63 67 64 61 50

Inlet 73 58 63 63 63 69 67 66 56

Outlet 78 64 63 67 72 72 71 70 62






210489

355

594

45

19445

355

355



Input, kW 0,79

Speed, rpm 890


Capacitor, µF -

Max.temp. oC 65



19

R F T 3 1 5 ESingle inlet radial fan with forward curved impeller. 3-phase

R F T 3 5 5 ASingle inlet radial fan with forward curved impeller. 3-phase



R F T 3 1 5 E

RFT 315 E, 730 l/s 620 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 74 81 53 61 66 72 79 75 73 66

Inlet 85 68 72 73 71 81 79 78 72

Outlet 89 74 74 79 81 85 83 81 76






246

251

462

194219244

194

489210

355

594

Ø13,1

210489

355

594

45

19445

355

355



Input, kW 2,0

Speed, rpm 1400


Capacitor, µF -

Max.temp. oC 50





R F T 3 5 5 A

RFT 355 A, 615 l/s 205 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 62 69 43 52 58 63 64 63 61 51

Inlet 71 54 60 58 63 66 65 64 54

Outlet 75 55 63 64 67 69 70 68 58






278

283

520

220245270

220

549235

398

668

Ø13,1

235549

398

668

50

22050

400

400



Input, kW 0,96

Speed, rpm 680


Capacitor, µF -

Max.temp. oC 80



20

R F T 3 5 5 BSingle inlet radial fan with forward curved impeller. 3-phase



S O U N D D A T A

278

283

520

220245270

220

549235

398

668

Ø13,1

I N P U T / F L O W

R F T 3 5 5 B

RFT 355 B, 565 l/s 360 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 66 73 49 57 63 67 69 66 66 57

Inlet 76 60 65 62 67 70 70 70 62

Outlet 79 58 64 65 69 73 73 73 64








R F T 3 5 5 D


Environment 77 84 56 66 70 75 80 79 76 72

Inlet 86 67 76 73 75 81 82 79 75

Outlet 90 63 74 75 79 86 85 84 78






235549

398

668

50

22050

400

400

278

283

520

220245270

220

549235

398

668

Ø13,1

235549

398

668

50

22050

400

400



Input, kW 1,5

Speed, rpm 765


Capacitor, µF -

Max.temp. oC 45




Current, A 6,75/11,69

Input, kW 4,1

Speed, rpm 1370


Capacitor, µF -

Max.temp. oC 55



21

R F T 4 0 0 CSingle inlet radial fan with forward curved impeller. 3-phase

R F T 4 0 0 ESingle inlet radial fan with forward curved impeller. 3-phase



R F T 4 0 0 C

RFT 400 C, 825 l/s 280 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 68 75 46 56 62 70 72 68 67 60

Inlet 76 56 61 60 70 70 71 67 59

Outlet 80 59 64 66 74 74 75 73 64






316

321

548

246271296

246

616262

448

749

Ø13,1

262616

448

749

55

24655

500

500



Input, kW 1,3

Speed, rpm 645


Capacitor, µF -

Max.temp. oC 55




S O U N D D A T A

316

321

548

246271296

246

616262

448

749

Ø13,1

I N P U T / F L O W

R F T 4 0 0 E

RFT 400 E, 955 l/s 485 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 73 80 54 62 66 73 76 75 72 67

Inlet 81 62 68 64 73 76 76 74 68

Outlet 86 64 69 70 79 81 81 79 72






262616

448

749

55

24655

500

500



Input, kW 3,1

Speed, rpm 850


Capacitor, µF -

Max.temp. oC 40



22



R F T 4 0 0 F

RFT 400 F, 1235 l/s 1065 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 80 87 64 70 71 78 83 81 78 73

Inlet 90 71 73 73 80 85 86 83 79

Outlet 94 67 76 77 84 90 90 86 80








R F T 4 5 0 G

RFT 450 G, 1035 l/s 375 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 71 78 49 57 63 75 72 70 68 60

Inlet 79 61 64 62 71 72 75 71 64

Outlet 85 65 69 72 78 79 80 76 68






316

321

548

246271296

246

616262

448

749

Ø13,1

262616

448

749

55

24655

500

500

368

373

656

275300325

275

699293

505

843

Ø13,1

293699

505

843

55

27555

500

500


Current, A 9,70/16,80

Input, kW 5,8

Speed, rpm 1375


Capacitor, µF -

Max.temp. oC 40





Input, kW 2,8

Speed, rpm 665


Capacitor, µF -

Max.temp. oC 40



R F T 4 0 0 FSingle inlet radial fan with forward curved impeller. 3-phase

R F T 4 5 0 GSingle inlet radial fan with forward curved impeller. 3-phase

23


R F T 4 5 0 HSingle inlet radial fan with forward curved impeller. 3-phase


S O U N D D A T A

368

373

656

275300325

275

699293

505

843

Ø13,1

I N P U T / F L O W

R F T 4 5 0 H

RFT 450 H, 1110 l/s 625 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 75 82 55 65 68 77 77 75 73 67

Inlet 83 67 71 66 73 77 79 76 69

Outlet 87 68 73 73 80 82 83 79 71






293699

505

843

55

27555

500

500


Current, A 7,05/12,21

Input, kW 3,8

Speed, rpm 865


Capacitor, µF -

Max.temp. oC 45



24

R B E 1 9 0 CR B E 2 8 0 CSingle inlet radial fan with backward curved impeller. Single phase



R B E 1 9 0 C

RBE 190 C, 70 l/s 260 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 58 65 30 35 56 59 60 61 53 46

Inlet 70 50 56 64 66 62 60 53 48

Outlet 71 50 57 65 68 66 61 60 51







Current, A 0,34

Input, W 78

Speed, rpm 2520


Capacitor, µF 2

Max.temp. oC 80





R B E 2 8 0 C

RBE 280 C, 220 l/s 480 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 69 76 46 57 68 70 71 69 66 61

Inlet 77 61 64 72 71 70 69 67 63

Outlet 83 60 67 71 77 74 79 73 68







Current, A 1,15

Input, W 265

Speed, rpm 2605


Capacitor, µF 8

Max.temp. oC 55




25

D F E 1 3 3 - 2D F E 1 3 3 - 4

Double inlet radial fan with forward curved impeller. Single phase



D F E 1 3 3 - 2

DFE 133-2, 145 l/s 245 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 63 70 39 46 57 62 65 66 63 56

Outlet 76 56 61 55 58 71 72 70 65



Flange




D F E 1 3 3 - 4


Environment 49 56 34 37 43 49 54 50 44 40

Outlet 61 48 50 43 48 59 55 48 38



Flange



Current, A 0,84

Input, W 194

Speed, rpm 1570


Capacitor, µF 5

Max.temp. oC 50

Insulation class F

Motor protection IP 44


Current, A 0,28

Input, W 63

Speed, rpm 1120


Capacitor, µF 2

Max.temp. oC 65

Insulation class F


26


D F E 1 3 3 - 2 0D F E 1 3 3 - 2 1Double inlet radial fan with forward curved impeller. Single phase



D F E 1 3 3 - 2 0


Environment 59 66 43 49 54 58 62 61 57 50

Outlet 73 56 58 54 58 71 67 64 57



Flange




D F E 1 3 3 - 2 1


Environment 64 71 48 52 61 63 65 66 64 57

Outlet 77 59 62 59 62 73 73 70 65



Flange



Current, A 0,64

Input, W 147

Speed, rpm 1144


Capacitor, µF 4

Max.temp. oC 55

Insulation class F



Current, A 1,15

Input, W 264

Speed, rpm 2000


Capacitor, µF 5

Max.temp. oC 40

Insulation class F


27

D F E 1 3 3 - 2 2D F E 1 3 3 - 2 3




D F E 1 3 3 - 2 2


Environment 66 73 44 48 61 65 66 69 66 61

Outlet 80 57 60 59 64 75 77 73 69



Flange




D F E 1 3 3 - 2 3


Environment 60 67 45 49 54 58 62 62 59 51

Outlet 73 57 60 54 58 70 68 65 58



Flange



Current, A 1,38

Input, W 317

Speed, rpm 2356


Capacitor, µF 8

Max.temp. oC 50

Insulation class F



Current, A 0,67

Input, W 153

Speed, rpm 1216


Capacitor, µF 5

Max.temp. oC 55

Insulation class F


28


D F E 1 3 3 - 2 4D F E 1 4 6 - S 2Double inlet radial fan with forward curved impeller. Single phase



D F E 1 3 3 - 2 4


Environment 61 68 44 50 57 60 63 64 61 54

Outlet 76 57 61 56 60 73 71 67 62



Flange




D F E 1 4 6 - S 2

DFE 146-S2, 180 l/s 385 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 65 72 52 57 64 66 66 67 64 58

Outlet 76 58 64 62 64 72 72 70 66




Current, A 0,85

Input, W 195

Speed, rpm 1308


Capacitor, µF 5

Max.temp. oC 40

Insulation class F



Current, A 1,3

Input, W 290

Speed, rpm 1950


Capacitor, µF 10

Max.temp. oC 45

Insulation class F


29

D F E 1 4 6 - S 4




D F E 1 4 6 - S 4

DFE 146-S4, 160 l/s 105 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K

Environment 55 62 34 43 53 55 58 56 52 43

Outlet 65 49 57 56 51 62 58 54 45




Current, A 0,53

Input, W 121

Speed, rpm 1287


Capacitor, µF 5

Max.temp. oC 80

Insulation class F


30

Wiring diagrams

Key to model types

G E N E R A L F A N F A C T S

R F E 2 5 0 B KR

Fan

Radial

E = Single phaseT = 3-phase

Duct dimension Ø

A, B, C, D, E, F, G, H, L, M, P, R or S = Capacity

K = with junction boxU = without junction box

R = with connection pipeU = without connection pipe

4 0 4 0 0 0 43-phase Y 400 V

3~1~ 1~

4 0 4 0 0 0 1 Single phase

4 0 4 0 0 0 2Single phase

4 0 4 0 0 0 33-phase

D E S C R I P T I O N• The fan is used for transportation of “clean”

air, meaning not intended for fire-dangerous substances, explosives, grinding dust, soot,etc.

• The fan is equipped with an asynchronous external rotor induction motor with mainte-nance-free sealed ball-bearings.

• The capacitor has finite lifetime and should be exchanged after 45.000 hours of opera-tion (about 5 years) to secure maximum function. Defective capacitor can cause damage.

• To achieve maximum life time for installa-tions in damp or cold environments, the fan should be operating continuously.

• The fan can be installed outside or in other damp environments. Make sure that the fan-house is equipped with drainage.

• The fan is used at the voltages/frequencies according to the product label.

• The fan can be installed in any position.

I N S T A L L A T I O N• The fan must be installed according to the air

direction label on the fan.• The fan must be connected to duct or equip-

ped with a safety grille.• The fan should be installed in a safe way and

make sure that no foreign objects are left be-hind.

• The fan should be installed in a way that makes service and maintenance easy.

• The fan should be installed in a way that vibrations can not be transfused to duct or building.

• To regulate the speed, a transformer, a triac or a frequency converter can be connected.

• A wiring diagram is applied on the inside of the junction box or separately enclosed.

• The fan must be installed and connected electrically in the correct way grounded.

• Always use the internal thermo-contact, see wiring diagram.

• Electrical installations must be made by an authorized electrician.

• Electrical installations must be connected to a locally situated tension free switcher or by a lockable head switcher.

O P E R A T I O NWhen starting, make sure that:• the current does not exceed more than +5 %

of what is stated on the label.• the connecting voltage is in between +6% to

–10% of the rated voltage.• no noise appears when starting the fan.• the rotation direction at 3-phase motors are

according to the label.

H O W T O H A N D L E• The fan must be transported in its packing

until installation. This prevents transport damages, scratches and the fan from getting dirty.

• Attention, look out for sharp edges and cor-ners.

M A I N T E N A N C E• Before service, maintenance or repair begins,

the fan must be tension free and the impeller must have stopped.

• Consider the weight of the fan when remo-ving or opening larger fans to avoid jamming and contusions.

• The fan must be cleaned when needed, at least once per year to maintain the capacity

and to avoid unbalance which may cause unnecessary damages on the bearings.

• The fan bearings are maintenance-free and should be renewed only when necessary.

• When cleaning the fan, high-pressure clea-ning or strong dissolvent must not be used.

• Cleaning should be done without dislodging or damaging the impeller.

• Make sure that there is no noise from the fan.

F A U LT D E T E C T I O N1. Make sure that there is tension to the fan.2. Cut the tension and verify that the impeller

is not blocked.3. Check the thermo-contact/motor protector.

If it is disconnected the cause of overheatingmust be taken care of, not to be repeated. To restore the manual thermo-protector the tension will be cut for a couple of minutes.Larger motors than 1,6 A may have manual resetting on the motor. If it has automaticthermo-protector the resetting will be done automatically when the motor is cold.

4. Make sure that the capacitor is connected,(single phase only) according to the wiring diagram.

5. If the fan still does not work, the first thing to do is to renew the capacitor.

6. If nothing of this works, contact your fan supplier.

7. If the fan is returned to the supplier, it must be cleaned, the motor cable undamaged and a detailed nonconformity report enclosed.

W A R R A N T YThe warranty is only valid under condition thatthe fan is used according to this “Directions foruse”.

G E N E R A L F A N F A C T S

31

Sound data explanationS O U N D D A T A I N T H I SB R O C H U R E I S B A S E D O N F O L -L O W I N G D E F I N I T I O N S :The points for which the sound data is present-ed are along the system line defined by thepressure and flow stated in the sound data tablefor each fan. There are three types of sound inthese tables; inlet- and outlet sound are mea-sured in duct, while the surrounding sound ismeasured outside the fan and duct system. Forall these types of sound, the sound power levelsare presented in octave bands. For the sur-rounding sound, also the sound pressure levelhas been calculated.

T H E S O U N D P O W E R L E V E LThe sound power level, Lw(A) is used to calcu-late the sound from the whole ventilation sys-tem. This system can be a composition of gril-les, dampers and diffusers for example.

The sound power level is a measured valueaccording to standards, and it does not tell howthe sound appears as the sound power is inde-pendent of the characteristics of the placementof the fan. In order to resemble the human ear,the A-filter is used indicated with Lw(A) mea-sured in dB(A).

T H E S O U N D P R E S S U R E L E V E LThe sound pressure level, Lp or Lp(A), tellshow the human ear registrates the sound. It isdependent on the sound power level, distancefrom the source, restrictions of the propagationand the accoustic characteristics of the room.

The sound pressure level is presented for aroom with an equivalent absorption area of20 m2. 7 dB difference correspond to a distanceof ca 3 m, where the sound is emitted in a semispherical propagation.

The sound pressure level can be calculated as:Lp=Lw + 10Log (Q/4πr2 + 4/A)

A= is the room’s equivalent absorption area Q= is the propagation type:Q=1 is spherical propagationQ=2 is semi spherical propagationQ=4 is quarter spherical propagation.

For the free field case, i.e. from a roof fan, thesound pressure level is calculated as:Lp=Lw + 10log Q/4πr2.

With Lw(A) tot at 63dB(A), a distance of 5meters, semi spherical propagation and freefield case, the result will be:Lp(A)= 63 +10log 2/4π5² = 63-22= 41 dB(A) And at 10 meters:Lp(A)= 63 +10log 2/4π5² = 63-28= 35 dB(A)

In pressure/flow diagrams or in the table oftechnical data there are facts about highest tem-perature of transported air.

All motors have insulation class F whichmeans that the thermal contact disconnects thepower when the winding temperature is maxi-

mum 155°C. At this winding temperature thelife time of the ball-bearings is not optimal. Thisis why the ambient temperature is shown at alower winding temperature so the life time ofball-bearings becomes optimal.

The winding temperature variates in thediagrams and depending on differences inpower/current consumption. The temperaturesin our diagrams are given at the highest windingtemperature.

Temperature of transported air

F I G . 1 : The fan curve describes the capacity of the fan,i.e. the flow of the fan at different pressures at acertain input voltage.

The fan diagram has the pressure in Pascal,Pa, on the vertical axis and the flow in cubicmetres per second, m3/s, on the horizontal axis.

The point on the fan curve showing thecurrent pressure and flow is called the fans wor-king point. In our example it is marked with P.

If the pressure increases in the ducts, theworking point moves along the fan curve andhence a lower flow is obtained. In the examplethe working point would move from P1 to P2.

F I G . 2 :The system line describes the total behaviour ofa ventilation system (ducts, silencers and valvesetc.).

Along this system line, S, the working pointis moved from P2 to P3 as the rotational speedis changed.

Distinct voltage steps with eg. a transfor-mer produces different fan curves, 135 V and230 V, indicated in the example.

F I G . 3 :Our fan curves present the total pressure inPascal. Total pressure = Static + Dynamic pres-sure.

The static pressure is the pressure of thefan compared to the atmospheric pressure. It is this pressure that shall overcome the pressurelosses of the ventilation system.

The dynamic pressure is a calculated pres-sure that arises at the outlet of the fan, and ismostly due to air velocity. The dynamic pressu-re thus describes how the fan is working. Thedynamic pressure is presented with a curve,starting at origo, that increases with increasedflow. A high dynamic pressure can with wrongduct connection produce a high pressure loss. Ifthe pressure loss in the system is known, a fanwhose difference between the total and thedynamic pressure corresponds to the pressureloss in the system must be found.

Pressure/flow-curves explanationF I G . 1 : F I G . 2 :

F I G . 3 :

AB C.A.ÖstbergIndustrigatan 2, SE-774 35 Avesta, Sweden

Tel: +46 226 860 00Fax: +46 226 860 05

E-mail: [email protected]

Fresh air from

Östberg – The Fan Company is one ofthe leading producers of centrifugal in-line duct fans in the world.

30 years ago the founder and ownerwas one of them who invented the firstcentrifugal in-line duct fan in the history.

We have continued to develope newproducts and today we offer a wide pro-duct range of centrifugal in-line ductfans.

Our goal has always been to offerquality products at competitive prices.

ÖSTBERG - THE FAN COMPANY

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radial fans · 2019-06-25 · 3 radial fans from Östberg - the fan company radial fans from ab...

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