Centrifugal fans with backward curved blades are used primarily for intake suction and do not require a scroll housing.
They have high hydraulic efficiency.
Type
|
|
|
|
|
|
|
|
in min-1
|
in
m³/h
|
in
V
|
in
Hz
|
K2E133-RA03-01
|
2700
|
/
|
1~
|
190
|
230
|
50
|
AC
|
3100
|
/
|
1~
|
225
|
230
|
60
|
AC
|
K2E190-RA26-01
|
2350
|
/
|
1~
|
530
|
230
|
50
|
AC
|
2500
|
/
|
1~
|
590
|
230
|
60
|
AC
|
K2E220-RA38-01
|
2100
|
/
|
1~
|
885
|
230
|
50
|
AC
|
2050
|
/
|
1~
|
920
|
230
|
60
|
AC
|
K2E220-RB06-01
|
2500
|
/
|
1~
|
950
|
230
|
50
|
AC
|
2650
|
/
|
1~
|
1050
|
230
|
60
|
AC
|
K2E225-RA92-01
|
2500
|
/
|
1~
|
1150
|
230
|
50
|
AC
|
2600
|
/
|
1~
|
1300
|
230
|
60
|
AC
|
K2E250-RA50-01
|
2500
|
/
|
1~
|
1440
|
230
|
50
|
AC
|
2450
|
/
|
1~
|
1580
|
230
|
60
|
AC
|
K3G133-RA01-01
|
3770
|
/
|
1~
|
150
|
200
.. 240
|
50/60
|
AC
|
K3G133-RA01-03
|
3770
|
/
|
1~
|
150
|
200
.. 240
|
50/60
|
AC
|
K3G190-RD45-01
|
4120
|
/
|
1~
|
510
|
200
.. 240
|
50/60
|
AC
|
K3G190-RD45-03
|
4120
|
/
|
1~
|
510
|
200
.. 240
|
50/60
|
AC
|
K3G220-RC05-03
|
2580
|
/
|
1~
|
625
|
200
.. 240
|
50/60
|
AC
|
K3G220-RD21-01
|
3230
|
/
|
1~
|
800
|
200
.. 240
|
50/60
|
AC
|
K3G225-RD05-01
|
2200
|
/
|
1~
|
640
|
200
.. 240
|
50/60
|
AC
|
K3G225-RD05-03
|
2200
|
/
|
1~
|
640
|
200
.. 240
|
50/60
|
AC
|
K3G225-RE07-01
|
2860
|
/
|
1~
|
960
|
200
.. 240
|
50/60
|
AC
|
K3G225-RE07-03
|
2860
|
/
|
1~
|
960
|
200
.. 240
|
50/60
|
AC
|
K3G250-AT39-56
|
3000
|
/
|
1~
|
1500
|
200
.. 277
|
50/60
|
AC
|
K3G250-AT39-72
|
3000
|
/
|
1~
|
1500
|
200
.. 277
|
50/60
|
AC
|
K3G250-AT39-74
|
3000
|
/
|
1~
|
1500
|
200
.. 277
|
50/60
|
AC
|
K3G250-AV29-B2
|
3450
|
/
|
1~
|
2000
|
200
.. 277
|
50/60
|
AC
|
K3G250-AV29-B4
|
3450
|
/
|
1~
|
2000
|
200
.. 277
|
50/60
|
AC
|
K3G250-AV29-B6
|
3450
|
/
|
1~
|
1800
|
200
.. 277
|
50/60
|
AC
|
K3G250-AV29-B9
|
3450
|
/
|
1~
|
2000
|
200
.. 277
|
50/60
|
AC
|
K3G250-AY11-C2
|
3580
|
/
|
3~
|
2000
|
380
.. 480
|
50/60
|
AC
|
K3G250-AY11-C4
|
3580
|
/
|
3~
|
2000
|
380
.. 480
|
50/60
|
AC
|
K3G250-RD43-01
|
1955
|
/
|
1~
|
640
|
230
|
50/60
|
AC
|
K3G250-RE07-07
|
2510
|
/
|
1~
|
870
|
200
.. 240
|
50/60
|
AC
|
K3G250-RE09-05
|
2510
|
/
|
1~
|
900
|
200
.. 240
|
50/60
|
AC
|
K3G280-AT04-72
|
2400
|
/
|
1~
|
2250
|
200
.. 277
|
50/60
|
AC
|
K3G280-AT04-74
|
2400
|
/
|
1~
|
2250
|
200
.. 277
|
50/60
|
AC
|
K3G280-AU06-B2
|
2800
|
/
|
1~
|
2005
|
200
.. 277
|
50/60
|
AC
|
K3G280-AU06-B4
|
2800
|
/
|
1~
|
2005
|
200
.. 277
|
50/60
|
AC
|
K3G280-AU06-B6
|
2800
|
/
|
1~
|
2005
|
200
.. 277
|
50/60
|
AC
|
K3G280-AU11-C2
|
3100
|
/
|
3~
|
2200
|
380
.. 480
|
50/60
|
AC
|
K3G280-AU11-C4
|
3100
|
/
|
3~
|
2200
|
380
.. 480
|
50/60
|
AC
|
K3G280-AU11-C6
|
3100
|
/
|
3~
|
2200
|
380
.. 480
|
50/60
|
AC
|
K3G310-AX52-35
|
2580
|
/
|
3~
|
2940
|
380
.. 480
|
50/60
|
AC
|
K3G310-AX52-90
|
2580
|
/
|
3~
|
2940
|
380
.. 480
|
50/60
|
AC
|
K3G310-AX52-91
|
2580
|
/
|
3~
|
2940
|
380
.. 480
|
50/60
|
AC
|
K3G310-AX54-22
|
2850
|
/
|
1~
|
2790
|
200
.. 277
|
50/60
|
AC
|
K3G310-AX54-52
|
2850
|
/
|
1~
|
2790
|
200
.. 277
|
50/60
|
AC
|
K3G310-AZ88-02
|
4100
|
/
|
3~
|
3500
|
380
.. 480
|
50/60
|
AC
|
K3G310-AZ88-32
|
4100
|
/
|
3~
|
3500
|
380
.. 480
|
50/60
|
AC
|
K3G310-AZ88-35
|
4100
|
/
|
3~
|
3500
|
380
.. 480
|
50/60
|
AC
|
K3G310-BB49-02
|
3140
|
/
|
3~
|
2900
|
380
.. 480
|
50/60
|
AC
|
K3G310-BB49-32
|
3140
|
/
|
3~
|
2900
|
380
.. 480
|
50/60
|
AC
|
K3G355-AX56-90
|
2140
|
/
|
3~
|
3390
|
380
.. 480
|
50/60
|
AC
|
K3G355-AX56-91
|
2140
|
/
|
3~
|
3390
|
380
.. 480
|
50/60
|
AC
|
K3G355-AY40-02
|
2600
|
/
|
3~
|
4140
|
380
.. 480
|
50/60
|
AC
|
K3G355-AY40-32
|
2600
|
/
|
3~
|
4140
|
380
.. 480
|
50/60
|
AC
|
K3G355-AY40-35
|
2600
|
/
|
3~
|
4140
|
380
.. 480
|
50/60
|
AC
|
K3G355-AY43-22
|
2450
|
/
|
1~
|
3750
|
200
.. 277
|
50/60
|
AC
|
K3G355-AY43-52
|
2450
|
/
|
1~
|
3750
|
200
.. 277
|
50/60
|
AC
|
K3G355-BC92-02
|
2800
|
/
|
3~
|
4350
|
380
.. 480
|
50/60
|
AC
|
K3G355-BC92-32
|
2800
|
/
|
3~
|
4350
|
380
.. 480
|
50/60
|
AC
|
K3G400-AQ23-01
|
2550
|
/
|
3~
|
5400
|
380
.. 480
|
50/60
|
AC
|
K3G400-AQ23-31
|
2550
|
/
|
3~
|
5400
|
380
.. 480
|
50/60
|
AC
|
K3G400-AQ23-35
|
2550
|
/
|
3~
|
5400
|
380
.. 480
|
50/60
|
AC
|
K3G400-AQ23-68
|
2680
|
/
|
3~
|
6700
|
380
.. 480
|
50/60
|
AC
|
K3G400-AY87-02
|
2180
|
/
|
3~
|
4600
|
380
.. 480
|
50/60
|
AC
|
K3G400-AY87-32
|
2180
|
/
|
3~
|
4600
|
380
.. 480
|
50/60
|
AC
|
K3G450-AQ25-68
|
2040
|
/
|
3~
|
6000
|
380
.. 480
|
50/60
|
AC
|
K3G450-AY86-02
|
1750
|
/
|
3~
|
5300
|
380
.. 480
|
50/60
|
AC
|
K3G450-AY86-32
|
1750
|
/
|
3~
|
5300
|
380
.. 480
|
50/60
|
AC
|
K3G450-AZ24-68
|
2750
|
/
|
3~
|
7500
|
380
.. 480
|
50/60
|
AC
|
K3G450-AZ30-35
|
2750
|
/
|
3~
|
7980
|
380
.. 480
|
50/60
|
AC
|
K3G500-AP25-01
|
1780
|
/
|
3~
|
8000
|
380
.. 480
|
50/60
|
AC
|
K3G500-AP25-31
|
1780
|
/
|
3~
|
8000
|
380
.. 480
|
50/60
|
AC
|
K3G500-AP25-68
|
1910
|
/
|
3~
|
8000
|
380
.. 480
|
50/60
|
AC
|
K3G560-AQ08-68
|
1750
|
/
|
3~
|
9800
|
380
.. 480
|
50/60
|
AC
|
K3G630-AP01-01
|
1130
|
/
|
3~
|
13000
|
380
.. 480
|
50/60
|
AC
|
K3G710-AP02-01
|
920
|
/
|
3~
|
13000
|
380
.. 480
|
50/60
|
AC
|
R2E133-RA03-01
|
2700
|
/
|
1~
|
190
|
230
|
50
|
AC
|
3100
|
/
|
1~
|
225
|
230
|
60
|
AC
|
R2E220-RA38-01
|
2100
|
/
|
1~
|
885
|
230
|
50
|
AC
|
2050
|
/
|
1~
|
920
|
230
|
60
|
AC
|
R2E220-RB06-01
|
2500
|
/
|
1~
|
950
|
230
|
50
|
AC
|
2650
|
/
|
1~
|
1050
|
230
|
60
|
AC
|
R2E225-RA92-09
|
2500
|
/
|
1~
|
1150
|
230
|
50
|
AC
|
2600
|
/
|
1~
|
1300
|
230
|
60
|
AC
|
R2E250-RA50-01
|
2500
|
/
|
1~
|
1440
|
230
|
50
|
AC
|
2450
|
/
|
1~
|
1580
|
230
|
60
|
AC
|
R2E250-RB06-01
|
2750
|
/
|
1~
|
1460
|
230
|
50
|
AC
|
3100
|
/
|
1~
|
1670
|
230
|
60
|
AC
|
R3G133-RA01-01
|
3770
|
/
|
1~
|
150
|
200
.. 240
|
50/60
|
AC
|
R3G133-RA01-03
|
3770
|
/
|
1~
|
150
|
200
.. 240
|
50/60
|
AC
|
R3G220-RC05-03
|
2580
|
/
|
1~
|
625
|
200
.. 240
|
50/60
|
AC
|
R3G225-RD05-01
|
2200
|
/
|
1~
|
640
|
200
.. 240
|
50/60
|
AC
|
R3G225-RD05-03
|
2200
|
/
|
1~
|
640
|
200
.. 240
|
50/60
|
AC
|
R3G225-RE07-01
|
2860
|
/
|
1~
|
960
|
200
.. 240
|
50/60
|
AC
|
R3G225-RE07-03
|
2860
|
/
|
1~
|
960
|
200
.. 240
|
50/60
|
AC
|
R3G250-AT39-71
|
3000
|
/
|
1~
|
1500
|
200
.. 277
|
50/60
|
AC
|
R3G250-AV29-B1
|
3450
|
/
|
1~
|
2000
|
200
.. 277
|
50/60
|
AC
|
R3G250-AY11-C1
|
3580
|
/
|
3~
|
2000
|
380
.. 480
|
50/60
|
AC
|
R3G280-AT04-71
|
2400
|
/
|
1~
|
2250
|
200
.. 277
|
50/60
|
AC
|
R3G280-AU11-C1
|
3100
|
/
|
3~
|
2200
|
380
.. 480
|
50/60
|
AC
|
R3G310-AX52-90
|
2580
|
/
|
3~
|
2940
|
380
.. 480
|
50/60
|
AC
|
R3G310-AX54-21
|
2850
|
/
|
1~
|
2790
|
200
.. 277
|
50/60
|
AC
|
R3G310-AZ88-01
|
4100
|
/
|
3~
|
3500
|
380
.. 480
|
50/60
|
AC
|
R3G310-BB49-01
|
3140
|
/
|
3~
|
2900
|
380
.. 480
|
50/60
|
AC
|
R3G355-AX56-90
|
2140
|
/
|
3~
|
3390
|
380
.. 480
|
50/60
|
AC
|
R3G355-AY40-01
|
2600
|
/
|
3~
|
4140
|
380
.. 480
|
50/60
|
AC
|
R3G355-AY43-21
|
2450
|
/
|
1~
|
3750
|
200
.. 277
|
50/60
|
AC
|
R3G355-BC92-01
|
2800
|
/
|
3~
|
4350
|
380
.. 480
|
50/60
|
AC
|
R3G400-AQ23-01
|
2550
|
/
|
3~
|
5400
|
380
.. 480
|
50/60
|
AC
|
R3G400-AQ23-68
|
2680
|
/
|
3~
|
6700
|
380
.. 480
|
50/60
|
AC
|
R3G400-AY87-01
|
2180
|
/
|
3~
|
4600
|
380
.. 480
|
50/60
|
AC
|
R3G450-AQ25-68
|
2040
|
/
|
3~
|
6000
|
380
.. 480
|
50/60
|
AC
|
R3G450-AY86-01
|
1750
|
/
|
3~
|
5300
|
380
.. 480
|
50/60
|
AC
|
R3G450-AZ24-68
|
2750
|
/
|
3~
|
7500
|
380
.. 480
|
50/60
|
AC
|
R3G500-AP25-01
|
1780
|
/
|
3~
|
8000
|
380
.. 480
|
50/60
|
AC
|
R3G500-AP25-68
|
1910
|
/
|
3~
|
8000
|
380
.. 480
|
50/60
|
AC
|
R3G500-AQ31-68
|
2200
|
/
|
3~
|
10000
|
380
.. 480
|
50/60
|
AC
|
R3G560-AQ08-68
|
1750
|
/
|
3~
|
9800
|
380
.. 480
|
50/60
|
AC
|
R3G630-AP01-01
|
1130
|
/
|
3~
|
13000
|
380
.. 480
|
50/60
|
AC
|
R3G710-AP02-01
|
920
|
/
|
3~
|
13000
|
380
.. 480
|
50/60
|
AC
|
R6E355-AB28-10
|
910
|
/
|
1~
|
1830
|
230
|
50
|
AC
|
1000
|
/
|
1~
|
2000
|
230
|
60
|
AC
|