SFB-20 - Belt Drive

3358

(854) 1478

(378)

2112

(546)

46

(1168)

2412

(622)

2558 (651)

2738 (695)

2334

1578

(603)

(403)

22

 

(559)

 

3618

 

(918)

 

112

 

(38)

 

1912 (495)

35 (889)

 

 

37 (940)

2

(51)

2118

(537)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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t

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

o

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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o

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wheel Diameter = 20 (508)

Shaft Diameter = 114 (32) Outlet Area = 2.40 ft2 (0.223 m2) Mounting Hole Size = 5/8 (16) ^Approximate Unit Weight = 405 lb (184 kg)

All dimensions in inches (millimeters)

For additional discharge positions see page 12

^Weight shown is largest cataloged Open Drip Proof motor

cfm

Maximum BHP at given RPM = (RPM/485)3

(Maximum KW at a given RPM = (RPM/535)3)

Maximum RPM = 950 and Minimum RPM = 270 Tip Speed (ft/min.) = RPM x 5.24

SFB-20

 

 

 

 

 

 

 

(Tip Speed (m/s) = RPM x 0.0266)

 

 

 

 

 

 

 

 

 

Maximum Motor Frame Size = 215T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

OV

 

 

 

 

 

Static Pressure in Inches wg

 

 

 

 

 

 

0.25

0.5

0.75

1

 

1.25

1.5

 

1.75

2

 

2.5

2.75

 

 

 

 

 

 

 

 

RPM

320

402

 

 

 

 

 

 

 

 

 

 

 

3275

1362

BHP

0.37

0.53

 

 

 

 

 

 

 

 

 

 

 

 

 

Sones

8.1

9.1

 

 

 

 

 

 

 

 

 

 

 

 

 

RPM

343

420

487

 

 

 

 

 

 

 

 

 

 

3800

1581

BHP

0.51

0.70

0.90

 

 

 

 

 

 

 

 

 

 

 

 

Sones

10.3

10.1

11.3

 

 

 

 

 

 

 

 

 

 

 

 

RPM

369

440

503

561

 

613

 

 

 

 

 

 

 

4325

1799

BHP

0.70

0.90

1.13

1.36

 

1.61

 

 

 

 

 

 

 

 

 

Sones

11.3

11.5

12.6

13.1

 

14.6

 

 

 

 

 

 

 

 

 

RPM

396

462

521

576

 

628

676

 

 

 

 

 

 

4850

2018

BHP

0.92

1.15

1.39

1.64

 

1.91

2.19

 

 

 

 

 

 

 

 

Sones

12.3

13.4

13.7

13.9

 

15.0

16.7

 

 

 

 

 

 

 

 

RPM

424

485

542

594

 

642

689

 

733

 

 

 

 

5375

2236

BHP

1.19

1.45

1.71

1.99

 

2.26

2.56

 

2.87

 

 

 

 

 

 

Sones

14.0

15.4

14.7

14.5

 

15.3

16.9

 

18.6

 

 

 

 

 

 

RPM

454

511

564

614

 

661

704

 

747

788

 

 

 

5900

2455

BHP

1.52

1.80

2.08

2.38

 

2.68

2.98

 

3.30

3.64

 

 

 

 

 

Sones

16.1

16.8

15.5

15.3

 

15.5

17.3

 

19.0

21

 

 

 

 

 

RPM

484

537

587

634

 

679

722

 

762

801

 

877

911

6425

2673

BHP

1.90

2.22

2.52

2.83

 

3.15

3.49

 

3.81

4.15

 

4.89

5.26

 

 

Sones

18.6

18.4

16.8

16.1

 

16.5

18.0

 

19.8

21

 

24

26

 

 

RPM

515

565

612

657

 

700

741

 

780

818

 

890

925

6950

2892

BHP

2.36

2.69

3.02

3.36

 

3.70

4.04

 

4.41

4.76

 

5.51

5.92

 

 

Sones

20

19.8

18.5

17.0

 

18.0

19.3

 

21

22

 

25

26

 

 

RPM

546

593

638

681

 

722

761

 

799

836

 

904

938

7475

3110

BHP

2.88

3.24

3.59

3.95

 

4.30

4.68

 

5.05

5.44

 

6.20

6.61

 

 

Sones

22

21

20

19.2

 

19.5

21

 

22

24

 

27

28

 

 

RPM

578

622

665

705

 

745

782

 

819

854

 

922

 

8000

3329

BHP

3.47

3.86

4.24

4.61

 

5.00

5.38

 

5.79

6.18

 

7.02

 

 

 

Sones

24

23

22

22

 

22

23

 

24

25

 

29

 

 

 

RPM

610

652

692

731

 

769

805

 

840

875

 

940

 

8525

3547

BHP

4.14

4.55

4.96

5.37

 

5.77

6.18

 

6.59

7.02

 

7.89

 

 

 

Sones

26

24

24

24

 

24

25

 

26

28

 

31

 

Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.

21

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Greenheck Fan SWB, SFD manual SFB-20 Belt Drive

SWB, SFD, SFB specifications

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