Centrifugal
Backward Laminar (CBL)

|
|
|
|
Fan Size
|
Inlet Dia N
|
Outlet A1
|
Outlet A2
|
B
|
C
|
D
|
E
|
F
|
G
|
J
|
K
|
S(Belt)
|
|
300
|
310
|
306
|
282
|
300
|
237
|
250
|
285
|
370
|
420
|
225
|
524
|
310
|
|
300M
|
310
|
306
|
272
|
|
|
|
|
|
|
200
|
519
|
|
|
300N
|
288
|
306
|
144
|
|
|
|
|
|
|
158
|
455
|
|
|
350
|
340
|
336
|
310
|
328
|
259
|
270
|
310
|
400
|
460
|
239
|
528
|
310
|
|
350M
|
340
|
336
|
300
|
|
|
|
|
|
|
234
|
523
|
|
|
350N
|
310
|
336
|
158
|
|
|
|
|
|
|
165
|
452
|
|
|
400
|
440
|
408
|
378
|
403
|
316
|
320
|
381
|
480
|
560
|
274
|
676
|
410
|
|
400M
|
440
|
408
|
366
|
|
|
|
|
|
|
268
|
670
|
|
|
400N
|
340
|
408
|
194
|
|
|
|
|
|
|
143
|
583
|
|
|
450
|
490
|
448
|
418
|
443
|
349
|
360
|
418
|
520
|
610
|
293
|
696
|
410
|
|
450M
|
490
|
448
|
404
|
|
|
|
|
|
|
286
|
689
|
|
|
450N
|
440
|
448
|
210
|
|
|
|
|
|
|
186
|
593
|
|
|
500
|
550
|
496
|
458
|
490
|
386
|
400
|
462
|
570
|
670
|
314
|
709
|
410
|
|
500M
|
550
|
496
|
442
|
|
|
|
|
|
|
306
|
701
|
|
|
500N
|
490
|
496
|
232
|
|
|
|
|
|
|
201
|
596
|
|
|
575
|
646
|
602
|
556
|
596
|
470
|
460
|
563
|
680
|
790
|
383
|
884
|
510
|
|
575M
|
646
|
602
|
538
|
|
|
|
|
|
|
374
|
875
|
|
|
575N
|
548
|
602
|
282
|
|
|
|
|
|
|
244
|
747
|
|
|
650
|
736
|
664
|
610
|
658
|
517
|
530
|
620
|
740
|
890
|
410
|
912
|
510
|
|
650M
|
736
|
664
|
590
|
|
|
|
|
|
|
400
|
902
|
|
|
650N
|
646
|
664
|
310
|
|
|
|
|
|
|
289
|
761
|
|
|
725
|
816
|
732
|
674
|
725
|
568
|
580
|
682
|
800
|
990
|
463
|
1094
|
640
|
|
725M
|
816
|
732
|
652
|
|
|
|
|
|
|
452
|
1083
|
|
|
725N
|
736
|
732
|
342
|
|
|
|
|
|
|
318
|
927
|
|
|
800
|
906
|
810
|
750
|
804
|
631
|
620
|
756
|
900
|
1070
|
500
|
1132
|
640
|
|
800M
|
906
|
810
|
724
|
|
|
|
|
|
|
487
|
1119
|
|
|
800N
|
816
|
810
|
380
|
|
|
|
|
|
|
353
|
947
|
|
|
900
|
994
|
892
|
820
|
886
|
696
|
660
|
833
|
980
|
1150
|
535
|
1164
|
640
|
|
900M
|
994
|
892
|
792
|
|
|
|
|
|
|
521
|
1150
|
|
|
900N
|
906
|
892
|
414
|
|
|
|
|
|
|
398
|
961
|
|
|
1000
|
1060
|
984
|
902
|
977
|
768
|
750
|
921
|
1080
|
1300
|
575
|
1240
|
640
|
|
1000M
|
1060
|
984
|
812
|
|
|
|
|
|
|
530
|
1215
|
|
|
1000N
|
994
|
984
|
456
|
|
|
|
|
|
|
407
|
1017
|
|
|
1100
|
1140
|
1086
|
1000
|
1078
|
845
|
800
|
1015
|
1180
|
1460
|
624
|
1289
|
640
|
|
1100M
|
1140
|
1086
|
900
|
|
|
|
|
|
|
574
|
1259
|
|
|
1100N
|
1060
|
1086
|
504
|
|
|
|
|
|
|
432
|
1042
|
|
|
1225
|
1250
|
1202
|
1106
|
1192
|
936
|
900
|
1123
|
1350
|
1600
|
707
|
1532
|
800
|
|
1225M
|
1250
|
1202
|
996
|
|
|
|
|
|
|
652
|
1498
|
|
|
1225N
|
1140
|
1202
|
558
|
|
|
|
|
|
|
479
|
1259
|
|
|
1350
|
1350
|
1330
|
1216
|
1320
|
1034
|
1000
|
1243
|
1450
|
1760
|
762
|
1587
|
800
|
|
1350M
|
1350
|
1330
|
1096
|
|
|
|
|
|
|
702
|
1547
|
|
|
1350N
|
1250
|
1330
|
614
|
|
|
|
|
|
|
506
|
1286
|
|
|
1500M
|
1500
|
1346
|
1230
|
1486
|
1156
|
1080
|
1348
|
1435
|
1800
|
764
|
1679
|
900
|
|
1500N
|
1350
|
1346
|
622
|
|
|
|
|
|
|
485
|
1375
|
|
|
1650M
|
1655
|
1492
|
1360
|
1624
|
1274
|
1215
|
1530
|
1580
|
2080
|
829
|
1769
|
900
|
|
1650N
|
1500
|
1492
|
686
|
|
|
|
|
|
|
517
|
1432
|
|
|
1800M
|
1830
|
1638
|
1496
|
1772
|
1394
|
1320
|
1668
|
1735
|
2330
|
922
|
1857
|
900
|
|
1800N
|
1655
|
1638
|
756
|
|
|
|
|
|
|
577
|
1487
|
|
|
2000M
|
2005
|
1808
|
1654
|
1969
|
1546
|
1440
|
1855
|
1910
|
2420
|
1026
|
1966
|
900
|
|
2000N
|
1830
|
1808
|
834
|
|
|
|
|
|
|
641
|
1556
|
|
DEFINITION
The
Stockbridge Airco centrifugal fan type CBL is specified for
general industrial applications and is available in three
widths to give a variety of operating capacities economically
and efficiently. The flat blades are not prone to accumulation
of solids and consequently the fan will retain its installed
balance quality longer, therefore this design can cope with
moisture and dust laden (up to 8g/m3) air or gas duties.
The
standard fan specification includes all-welded robust carbon
steel construction with dynamically balanced impeller. Proprietary
top quality British manufactured Brookhansen motors, drives
and S.K.F. bearings are used as standard.
Belt
drive arrangements can be supplied with pulleys selected to
give the optimum fan speed from a standard motor drive. A
direct driven arrangement is also available as a more compact
and economical option where a suitable motor speed matches
the required fan speed.
The
direct driven fan is also specified for speed controlled motor
drives, offering energy and running cost savings, particularly
on large fans running at varying flow rates.
For
higher flow, the CBL impeller may also be used in a double
width fan configuration.
|
Impeller Width
|
Full
|
M
|
N
|
|
Max. Pressure KPa
|
3.5
|
4.7
|
7.5
|
|
Sizes Available
|
300 to 1350
|
300 to 2000
|
300 to 2000
|
|
Fan Efficiency
|
75%
|
75%
|
75%
|
|
Capacity
m3/sec
|
1.3 to 25
|
1.4 to 52
|
0.9 to 39
|
PERFORMANCE
GRAPHS
CBL Full Width Fan
CBL Medium Width Fan
CBL Narrow Width Fan
|