The "Finna High Pressure Fan C" fan range is a Backward incline Centrifugal fan capable of producing high volumes withhigh pressures.
FHC duty range
Volumes up to 140,000 m3/hr
Pressures up to 6,500 Pa
FHC fan sizes range from
250 mm - 1250 mm as standard.
Fan casing materials
Polypropylene
Fire Retardant Polypropylene
UPVC
UPVC/FRP
PVDF
PVDF/FRP
Impeller materials
UPVC
Polypropylene
PVDF
Steelwork
Mild steel / galvanized as standard
Fixings
A2 stainless steel minimum
Performance data
In accordance with BS EN ISO 5801
Category D test. Ducted inlet, ducted outlet
Witness testing available upon request
1
FHC Fan Range Details
FHC 250 - 355 Dimension Details
Dimensions
Dimension details
2
Fan Size A B C D E F F(a) F(b) G H J K L M N P R S T U
FHC 250 345 445 312 383 280 550 600 650 670 160 830 75 250 665 269 169 515 85 600 250
FHC 315 432 532 393 388 360 650 700 800 825 200 1025 75 275 796 308 208 646 104 750 315
FHC 355 486 586 444 438 400 710 800 850 870 240 1110 75 300 882 334 234 733 117 850 355
4 off 11mm fixing holes
Drain threaded socket - 0.75" BSP std
See page 4 for flange details
F (b) = R0 and L0 handings
F (a) = R45 and L45 handings
F = Standard centre line height
Dimensions
Dimension Details
Drain threaded socket - 1.0" BSP std
See page 4 & 5 for flange details
F = Standard centre line height
F (a) = R45 and L45 handings
4 off 13mm dia fixing holes
3
F (b) = R0 and L0 handings
Fan Size A B C D E F F(a) F(b) G H J K L M N P R S T U
FHC 400 546 646 500 493 460 760 840 940 600 450 1050 22 330 1019 361 261 819 181 1000 400
FHC 450 613 713 562 555 515 840 930 1030 650 500 1150 22 360 1104 392 292 904 196 1100 450
FHC 500 680 780 625 616 570 900 1000 1130 750 550 1300 22 380 1209 422 322 1009 211 1220 500
FHC 560 760 900 700 690 640 1000 1120 1250 850 630 1480 22 420 1221 498 358 1021 229 1250 560
FHC 630 858 998 788 776 725 1120 1250 1400 950 730 1680 31 460 1429 541 401 1229 271 1500 630
FHC 710 966 1106 888 875 815 1250 1400 1500 1000 800 1800 31 485 1475 590 450 1275 295 1570 710
FHC 800 1086 1226 1000 986 920 1400 1570 1750 1100 900 2000 31 530 1497 645 505 1297 323 1620 800
FHC 900 1220 1360 1125 1109 1030 1550 1700 1900 1200 1000 2200 31 580 1517 706 566 1317 353 1670 900
FHC 1000 1355 1495 1250 1233 1150 1750 1950 2150 1300 1100 2400 36 630 1557 766 626 1357 393 1750 1000
FHC 1120 1517 1657 1387 1368 1290 1950 2150 2400 1400 1200 2600 36 700 1769 841 701 1569 431 2000 1120
FHC 1250 1692 1832 1547 1526 1380 2150 2350 2650 1500 1300 2800 36 775 1829 922 782 1629 471 2100 1250
FHC 400 - 1250 Dimension Details
Dimensions
Dimension Details
4
Fan Size A B C D E F G H
FHC 250 345 169 445 269 6 3 22 18
FHC 315 432 208 532 308 7 4 22 22
FHC 355 486 234 586 334 7 4 22 22
FHC 400 546 261 646 361 8 4 22 24
FHC 450 613 292 713 392 9 5 22 28
FHC 500 680 322 780 422 10 5 22 30
FHC 560 760 358 900 498 11 6 32 34
FHC 630 858 401 998 541 12 6 32 36
FHC 710 966 450 1106 590 14 7 32 42
FHC 800 1086 505 1226 645 15 8 32 46
FHC 900 1220 566 1360 706 17 9 32 52
FHC 1000 1355 626 1495 766 19 9 32 56
FHC 1120 1517 701 1657 841 19 10 32 58
FHC 1250 1692 782 1832 922 20 10 32 60
FHC 250 - 1250 Outlet Flange Details
Dimensions
Dimension Details
5
FHC 400 - 1250 Inlet Flange Details
Fan Size A B C D
FHC 400 400 500 455 16
FHC 450 450 550 505 16
FHC 500 500 600 555 16
FHC 560 560 660 615 20
FHC 630 630 730 685 20
FHC 710 710 810 765 24
FHC 800 800 940 875 24
FHC 900 900 1040 975 28
FHC 1000 1000 1140 1075 32
FHC 1120 1120 1260 1195 36
FHC 1250 1250 1390 1325 40
3200
3000
2800
2600
2400
2200
2000
1800
1600
3400
0.00 5.66 11.32 16.97 22.63 28.29 33.95
0
100
200
300
400
0
1000
2000
3000
4000
0 1000 2000 3000 4000 5000 6000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
3400
3200
3000
2800
2600
2400
22002000
18001600
0%
14%
28%
42%
56%
70%
0 1000 2000 3000 4000 5000 6000
0.00
2.20
4.40
6.60
8.80
11.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 250 Performance Curve
FHC 250 Power / Efficiency Curve
FINNA
FINNA
3000
2800
2600
2400
2200
2000
1800
1600
1400
3100
0.00 3.56 7.13 10.69 14.26 17.82 21.38 24.95 28.51 32.08
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
3100
3000
2800
2600
2400
2200
2000
1800
16001400
0%
15%
30%
45%
60%
75%
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
0.00
3.00
6.00
9.00
12.00
15.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 315 Performance Curve
FHC 315 Power / Efficiency Curve
FINNA
FINNA
2600
2400
2200
2000
1800
1600
1400
2800
0.00 2.81 5.61 8.42 11.22 14.03 16.84 19.64 22.45 25.25 28.06 30.87
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
2800
2600
2400
2200
2000
1800
1600
1400
0%
15%
30%
45%
60%
75%
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000
0.00
4.00
8.00
12.00
16.00
20.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 355 Performance Curve
FHC 355 Power / Efficiency Curve
FINNA
FINNA
2400
2200
2000
1800
1600
1400
2500
1200
0.00 4.42 8.84 13.26 17.68 22.10 26.52 30.94
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 2000 4000 6000 8000 10000 12000 14000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
2500
2400
2200
2000
1800
1600
1400
1200
0%
15%
30%
45%
60%
75%
0 2000 4000 6000 8000 10000 12000 14000
0.00
6.00
12.00
18.00
24.00
30.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 400 Performance Curve
FHC 400 Power / Efficiency Curve
FINNA
FINNA
2000
1800
1600
1400
1000
2200
1200
0.00 3.49 6.99 10.48 13.97 17.46 20.96 24.45 27.94 31.43
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
2200
2000
1800
1600
1400
1200
1000
0%
15%
30%
45%
60%
75%
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
0.00
6.00
12.00
18.00
24.00
30.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 450 Performance Curve
FHC 450 Power / Efficiency Curve
FINNA
FINNA
1800
1600
1400
1000
2200
1200
0.00 5.66 11.32 16.97 22.63 28.29 33.95
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 4000 8000 12000 16000 20000 24000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
2200
1800
1600
1400
1200
1000
0%
20%
40%
60%
80%
0 4000 8000 12000 16000 20000 24000
0.00
10.00
20.00
30.00
40.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 500 Performance Curve
FHC 500 Power / Efficiency Curve
FINNA
FINNA
1600
1400
1000
800
1800
1200
0.00 5.64 11.28 16.91 22.55 28.19 33.83
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 5000 10000 15000 20000 25000 30000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
1800
1600
1400
1200
1000
800
0%
20%
40%
60%
80%
0 5000 10000 15000 20000 25000 30000
0.00
15.00
30.00
45.00
60.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 560 Performance Curve
FHC 560 Power / Efficiency Curve
FINNA
FINNA
1400
1000
800
1600
1200
0.00 5.35 10.69 16.04 21.38 26.73 32.08
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 6000 12000 18000 24000 30000 36000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
1600
1400
1200
1000
800
0%
16%
32%
48%
64%
80%
0 6000 12000 18000 24000 30000 36000
0.00
14.00
28.00
42.00
56.00
70.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 630 Performance Curve
FHC 630 Power / Efficiency Curve
FINNA
FINNA
1000
900
800
700
1400
1200
0.00 4.21 8.42 12.63 16.84 21.05 25.25 29.46 33.67
0
100
200
300
400
500
600
0
1000
2000
3000
4000
5000
6000
0 6000 12000 18000 24000 30000 36000 42000 48000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
1400
1200
1000
900
800
700
0%
16%
32%
48%
64%
80%
0 6000 12000 18000 24000 30000 36000 42000 48000
0.00
18.00
36.00
54.00
72.00
90.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 710 Performance Curve
FHC 710 Power / Efficiency Curve
FINNA
FINNA
1000
900
800
700
600
1150
0.00 5.53 11.05 16.58 22.10 27.63 33.15
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 10000 20000 30000 40000 50000 60000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
1150
1000
900
800
700
600
0%
16%
32%
48%
64%
80%
0 10000 20000 30000 40000 50000 60000
0.00
18.00
36.00
54.00
72.00
90.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 800 Performance Curve
FHC 800 Power / Efficiency Curve
FINNA
FINNA
900
800
700
600
500
1000
0.00 4.37 8.73 13.10 17.46 21.83 26.19 30.56
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 10000 20000 30000 40000 50000 60000 70000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
1000
900
800
700
600
500
0%
16%
32%
48%
64%
80%
0 10000 20000 30000 40000 50000 60000 70000
0.00
20.00
40.00
60.00
80.00
100.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 900 Performance Curve
FHC 900 Power / Efficiency Curve
FINNA
FINNA
800
700
600
500
900
0.00 3.54 7.07 10.61 14.15 17.68 21.22 24.75 28.29 31.83
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 10000 20000 30000 40000 50000 60000 70000 80000 90000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
900
800
700
600
500
0%
16%
32%
48%
64%
80%
0 10000 20000 30000 40000 50000 60000 70000 80000 90000
0.00
28.00
56.00
84.00
112.00
140.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 1000 Performance Curve
FHC 1000 Power / Efficiency Curve
FINNA
FINNA
700
600
500
400
800
0.00 2.82 5.64 8.46 11.28 14.10 16.91 19.73 22.55 25.37 28.19 31.01
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
800
700
600
500
400
0%
16%
32%
48%
64%
80%
0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000
0.00
32.00
64.00
96.00
128.00
160.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 1120 Performance Curve
FHC 1120 Power / Efficiency Curve
FINNA
FINNA
600
500
400
300
700
0.00 4.53 9.05 13.58 18.11 22.63 27.16 31.69
0
100
200
300
400
500
0
1000
2000
3000
4000
5000
0 20000 40000 60000 80000 100000 120000 140000
Velocity (m/s)
Stat
ic P
ress
ure
(mm
WG
)
Stat
ic P
ress
ure
(Pa)
Volume (m3/h)
700
600
500
400
300
0%
16%
32%
48%
64%
80%
0 20000 40000 60000 80000 100000 120000 140000
0.00
40.00
80.00
120.00
160.00
200.00
Tota
l Eff
icie
ncy
%
Volume (m3/h)
Pow
er (k
W)
FHC 1250 Performance Curve
FHC 1250 Power / Efficiency Curve
FINNA
FINNA
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