Flow
CYL/CON
Bifurcated Axial Fans
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Cylindrical
AXIAL FLOW
Features & Benefits
The Biflow SB is a quality range of bifurcated axial fans with a cylindrical casing, specially developed
for handling more hostile air movement applications. The Biflow SB is designed so that air throughput
totally by-passes the motor, keeping the motor out of the airstream in a cooler environment.
· 3 standard sizes from 400mm to 630mm.
· Air volume flow rates of up to 4.50 m3/sec.
· Static pressures of up to 200 Pa.
· Motor out of the air stream - Ideal for high temperature applications.
· Motors are foot mounted totally enclosed metric, protected to IP55.
· Robust, hot dipped galvanised steel casing.
· Suitable for ambient operating temperatures of up to 200° C.
· Ideal for external or internal mounting.
· Wide range of ancillaries.
Features & Benefits
Motor protection – As the motor is out of the air stream,
immediately from stock.
when the fan is operating at temperatures of up to 200° C,
this keeps the air, dust and other contaminants away from
the motor, which is an important benefit.
Flexible performance – Adjustable pitch impellers mean the
pitch angle of the impeller can be adjusted on site (within
limits) if a commissioning problem were to occur.
Quality impellers – Adjustable pitch aerofoil section
impellers with blades made from high quality pressure die
cast aluminium. Hubs are pressure die cast aluminium.
Integral Flanges – Casings have integral spun flanges for a
Mounting arrangement – With a single entry motor tunnel
into the fan casing, the motor tunnel must be either
mounted with its opening vertically upwards, or horizontal
to ensure adequate motor cooling. All bifurcated axial fans
are suitable for external mounting.
Material strength - SB bifurcated axial fans have a robust,
heavy duty construction for added strength and durability.
Fan casings are heavy gauge, sheet steel, roll formed and
welded and hot dipped galvanised after fabrication to
BS 729.
smooth airflow.
Full Accessory Range – Mounting feet, anti-vibration
mounts, matching flanges, flexible connectors, silencers,
bell mouth inlets, non return dampers and wire guards.
Tested to the very latest standards – SB units are tested to
ISO 5801:1997 (airside performance) and to
BS 848 Pt 2:1985 (sound performance) meaning accurate,
up to date information on performance and noise data that
can be relied upon.
Quality assurance – All units are designed and
manufactured with procedures as defined in
BS EN ISO 9001: 2000.
Motor accessibility – Foot mounted motors are easily
accessible, which means where there is a requirement to
change motors, this can be done relatively easily.
Warranty – Each SB bifurcated fan has a 12 month
warranty.
Cost effective – The high efficiency impellers make this a
very economical method of moving high volumes of air at
low to medium pressures.
Applications
Choice – A range of 3 sizes from 400mm to 630mm
diameter, means wider performance and greater choice
for the engineer.
Kitchen extract, spray booths, hot gas situations,
corrosive atmospheres, boiler houses,
heavy industrial.
Availability – The SB range of bifurcated fans is available
© Elta Fans Ltd
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Cylindrical
AXIAL FLOW
Dimensional Data
E-HOLES F
EQUISPACED ON
G PCD
B
A
AIRFLOW
C
PRODUCT CODE
A B C D E F G
Wt Kg
SB400-CYL4-3
400
475
450
250
8
12
450
SB630-CYL4-3
630
715
570
400
12
12
690
Product
500B
585 CE
450 315
12 FG
12
560
SB500-CYL4-3 A
Code
29
Weight
kg 47
78
SB400-CYL4-3400475450 8 1245029
SB500-CYL4-350058545012 1256047
SB630-CYL4-363071557012 1269078
© Elta Fans Ltd
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Cylindrical
AXIAL FLOW
Performance & Electrical Data
THREE Phase - 380V-415V / 50Hz
Product
Code
Speed
r/min
0
Airflow m3/s @ Static Pressure Pa.
25
50
75
100
150
200
Motor Electrical Data
IE1FLC IE2 FLC
Amps Amps
SC
Amps
Output
kW
A.V.
Mounts
dBA
@
3m
SB400-CYL4-31400 1.01 0.960.89 0.820.70 0.69 N/A 3.80 0.25 S2B 55
SB500-CYL4-31415 2.30 2.232.14 2.041.92 1.52 1.67 1.65 10.9 0.75 S2G 62
SB630-CYL4-31410 4.50 4.384.27 4.164.04 3.76 3.44 4.54 4.43 30.9 2.2 S2 70
Sound levels are average spherical free field values at 50% peak pressure for comparative purposes only.
Silencer Data
Product
Code
dBA Attenuation
∆P
(Pa)
1DEP
dBA Attenuation
∆P
(Pa)
2DEP
SB400-CYL4-3-9 -13 14 -13 -15 22
SB500-CYL4-3-9 -11 26 -14 -15 42
SB630-CYL4-3-9 -14 39 -13 -21 63
Spinning of air at inlet connection
DO NOT!
A poorly designed inlet box can
generate spinning of the air which
can reduce performance by
around 25%.
Also, avoid small inlet boxes as
they can cause surging.
DO!
Splitters at the inlet help prevent
spinning flow. Turning vanes,
where R/W <1.0 improves
uniformity of flow approaching the
fan inlet.
Inlet boxes should be amply sized.
© Elta Fans Ltd
Biflow SB - Cylindrical
Sound Data
SB CYL - THREE Phase
Product
Code
SB400-CYL4-3
SB500-CYL4-3
SB630-CYL4-3
63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
80
80
89
77
79
87
76
78
85
72
77
85
71
79
85
69
76
85
66
73
83
56
66
78
dBA
@
3m
55
62
70
Acoustic data: tests and preparation of data have been carried out in accordance with BS848 Part 2(1985). The In-duct Sound Power Level Spectra are in dB re 1pW. The overall
A-Scale sound pressure level is at a distance of three metres with spherical propagation. It is expressed in dB re 20uPa and is presented for comparative purposes only as in
practice the semi-reverberant nature of any installation and directivity effects can give a different level.
Biflow SB - Cylindrical
Performance Curves
4 Pole 3Ph Range
225
SB400-CYL4-3
SB500-CYL4-3
SB630-CYL4-3
200
175
150
Pressure - Pa
125
100
75
50
25
0
0.0
1.0
2.0
3.0
Volume - m3/s
4.0
5.0
t: 01384 275800
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Biflow SB - Conical
The Biflow SB is a quality range of bifurcated axial fans with a conical casing, specially developed for
handling more hostile air movement applications. The Biflow SB is designed so that air throughput
totally by-passes the motor, keeping the motor out of the airstream in a cooler environment.
· 4 standard sizes from 250mm to 500mm.
· Air volume flow rates of up to 3.80 m3/sec.
· Static pressures of up to 600 Pa.
· Motors are foot mounted totally enclosed metric, protected to IP55.
· Motor out of the air stream - Ideal for high temperature applications.
· Impellers are highly efficient aluminium aerofoil bladed section,
retained in an aluminium hub and balanced to Grade G6.3.
· Robust, hot dipped galvanised steel casing.
· Extensive stock range available.
· Ideal for external or internal mounting.
· Wide range of ancillaries.
· Suitable for ambient operating temperatures of up 200°C.
Features & Benefits
Casing design – The conically profiled fan casing is
designed to maximize the available space and size of drive
motor for a given impeller diameter, without causing any
undue restriction of airflow.
Motor protection – As the motor is out of the air stream,
when the fan is operating at temperatures of up to 200° C,
this keeps the air, dust and other contaminants away from
the motor, which is an important benefit.
Impeller design – Adjustable pitch aerofoil section impellers
with blades made from high quality pressure die cast
aluminium. Hubs are pressure die cast aluminium.
Material strength - SB bifurcated axial fans have a robust,
heavy duty construction for added strength and durability.
Fan casings are heavy gauge, sheet steel, roll formed and
welded and hot dipped galvanised after fabrication to
BS 729.
Motor accessibility – Foot mounted motors are easily
accessible, which means where there is a requirement to
change motors, this can be done relatively easily.
Availability – The SB range of bifurcated fans is available
immediately from stock.
Flexible performance – Adjustable pitch impellers mean the
pitch angle of the impeller can be adjusted on site (within
limits) if a commissioning problem were to occur.
Integral Flanges – Casings have integral spun flanges for a
smooth airflow.
Tested to the very latest standards – SB units are tested
to ISO 5801:1997 (airside performance) and to
BS 848 Pt 2:1985 (sound performance) at Elta Fans own
test facility, meaning accurate, up to date information on
performance and noise data that can be relied upon.
Quality assurance – All units are designed and
manufactured with procedures as defined in
BS EN ISO 9001: 2000.
Full range of ancillaries – Mounting feet, Anti-Vibration
mounts, matching flanges, flexible connectors, silencers,
bell mouth inlets, non return dampers and wire guards.
Warranty – Each SB has a 12 month warranty.
Cost effective – The high efficiency impellers make this a
very economical method of moving high volumes of air at
low to medium pressures.
Choice – A range of 4 sizes from 250mm to 500mm
diameter, this means wider performance and greater
choice for the engineer.
Applications
Kitchen extract, spray booths, hot gas situations,
corrosive atmospheres, boiler houses, heavy industrial.
© Elta Fans Ltd
AXIAL FLOW
Features & Benefits
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Conical
AXIAL FLOW
Dimensional Data
E-HOLES F
EQUISPACED ON
G PCD
H
B
D
A
AIRFLOW
C
OPTIONAL MOUNTING FEET
Product
Code
PRODUCT CODE
A B C D E F G H
Wt.Kg
Weight
kg
250 D
325 460E
220 F
8
10 GH
299 400
SB250-CON4-1
A
B C
23
SB250-CON4-3
250 325 460 220
8
10
299 400
23
SB250-CON2-3
250 325 460 220
8
10
299 400
23
SB250-CON4-1 250 325 460 220 8
315 380 500 250
SB315-CON4-1
SB250-CON4-3 250 325 460 220 8
SB315-CON4-3
315 380 500 250
SB250-CON2-3 250 325 460 220 8
SB315-CON2-3
315 380 500 250
SB315-CON4-1 315 380 500 250 8
400 485 650 305
SB400-CON2-3
SB315-CON4-3 315
380 500
250 8
500 585 710 370
SB500-CON2-3
SB315-CON2-3 315 380 500 250 8
SB400-CON2-3 400 485 650 305 8
SB500-CON2-3 500 585 710 370 12
10 299400 23
8
10 355 460 30
10 299400 23
8
10 355 460 30
10 299400 23
8
10 355 460 31
10 355460 30
8 12 450 570 49
10
355460 30
12 12 560 700 86
10 355460 31
12 450570 49
12 560700 86
Accessories
© Elta Fans Ltd
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Conical
Performance & Electrical Data
SINGLE Phase - 220V-240V / 50Hz
Airflow m3/s @ Static Pressure Pa.
Motor Electrical Data
FLC
Amps
0 25 50 75 100150200250300400500600
dBA
A.V.
@
SC
Output Mounts 3m
Amps kW
AXIAL FLOW
Speed
Product
r/min
Code
SB250-CON4-1
1450
0.28
0.22
0.15
0.03
1.13
3.73
0.12
S1G
48
SB315-CON4-113700.520.48 0.43 0.380.23 1.133.73 0.12 S2B 51
Sound levels are average spherical free field values at 50% peak pressure for comparative purposes only.
THREE Phase - 380V-415V / 50Hz
Speed
Product
r/min
Code
Motor Electrical Data
Airflow m3/s @ Static Pressure Pa.
IE1 FLC IE2 FLC SC
Amps Amps Amps
0 25 50 75 100150200250300400500600
Output
kW
SB250-CON4-313700.270.210.140.04 0.48N/A 2.40 0.12
SB250-CON2-327800.570.530.500.470.44 0.360.280.20 0.68N/A 3.06 0.25
SB315-CON4-313700.520.480.430.370.25 0.48N/A 2.40 0.12
SB315-CON2-328000.930.920.910.900.88 0.840.800.760.71 0.55 1.18N/A 6.14 0.55
SB400-CON2-328402.082.072.052.022.001.961.921.861.821.701.53 4.564.4227.4 2.2
SB500-CON2-329003.803.783.763.733.713.663.603.543.463.303.152.907.557.4957.4 4.0
dBA
A.V.
@
Mounts
3m
S1G
S1G
S2B
S2B
S2G
S2
Sound levels are average spherical free field values at 50% peak pressure for comparative purposes only.
Silencer Data - SINGLE Phase
Product
Code
dBA Attenuation
∆P
(Pa)
1DEP
dBA Attenuation
∆P
(Pa)
2DEP
SB250-CON4-1-9 -11 11 -14 -16 16
SB315-CON4-1-8 -11 8 -13 -15 12
Silencer Data - THREE Phase
Product
Code
dBA Attenuation
SB250-CON4-3 -8
SB250-CON2-3 -9
SB315-CON4-3 -8
SB315-CON2-3 -9
SB400-CON2-3 -9
SB500-CON2-3 -9
∆P
dBA Attenuation
(Pa)
1DEP
-11
-12
-11
-14
-11
-16
8
25
8
28
64
81
∆P
(Pa)
2DEP
-14
-15
-13
-16
-14
-14
-1616
-1540
-1512
-1544
-15103
-19130
© Elta Fans Ltd
48
61
51
64
70
80
Biflow SB - Conical
Performance Curves
2 Pole 3Ph Range
650
SB250-CON2-3
SB315-CON2-3
SB400-CON2-3
600
SB500-CON2-3
550
500
450
Pressure - Pa
400
350
300
250
200
150
100
50
0
0.0
1.0
2.0
3.0
Volume - m3/s
4.0
5.0
Biflow SB - Conical
Performance Curves
4 Pole 1Ph Range
125
SB250-CON4-1
SB315-CON4-1
100
Pressure - Pa
75
50
25
0
0.00
0.10
0.20
0.30
Volume - m3/s
0.40
0.50
0.60
Biflow SB - Conical
Performance Curves
4 Pole 3Ph Range
125
SB250-CON4-3
SB315-CON4-3
100
Pressure - Pa
75
50
25
0
0.00
0.10
0.20
0.30
Volume - m3/s
0.40
0.50
0.60
1
t: 01384 275800
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Biflow SB - Cylindrical & Conical
Accessories
B
C
D
Flexible Connectors
3rd ANGLE PROJECTION
E
F
G
Matching Flanges
DO NOT SCALE-IF IN DOUBT, ASK!
A
B
1C
AXIAL FLOW
B
F
C
D
2
063-0315-MAN150
150
0.6
350
150
0.7
· Fit to063-0400-MAN150
matching flanges 400
063-0450-MAN150
450
to provide flexible
063-0500-MAN150
500
connection
063-0560-MAN150
560
· Silicone
coated glass 630
063-0630-MAN200
fibre 063-0710-MAN200
710
· Supplied
with plated 800
063-0800-MAN200
steel063-0900-MAN200
band fixings
900
· Alternative
materials 1000
063-1000-MAN250
available to order
150
0.9
150
1.1
150
1.2
150
1.3
200
1.4
200
2.0
200
2.3
200
2.7
250
3.0
3
4
3
FAN DIA.
A
PRODUCT CODE
· Fit directly to fan case 400
flange 061B-0400
· Provides061B-0450
easy 450
061B-0500
connection
to flexible500
061B-0560
connector
or ducting560
061B-0630
630
· Hot dipped
galvanised
710
steel 061B-0710
061B-0315
4
B
315
2
063-0350-MAN150
A
WEIGHT
KG
B
A
FAN DIA.
A
PRODUCT CODE
ANY DEVELOPMENT VIEWS SHOWN ON
THIS DRAWING ARE SHOWN FOR
REFERENCE PURPOSES ONLY. USE
OF THESE VIEWS FOR MANUFACTURING
PURPOSES ARE AT SUPPLIERS RISK.
5
THIS IS A C.A.D. PRODUCED DRAWING
AND THEREFORE NO SUBSEQUENT
MANUAL MODIFICATIONS WILL BE
ALLOWED.
TOLERANCES UNLESS
OTHERWISE STATED.
5
±
315
B
C
D
375
30
1.5
475
40
1.5
530
40
1.5
585
45
2.0
645
45
2.0
715
45
2.0
1100
50
2.0
061B-0800
800
1100
50
2.0
061B-1000
1000
1100
50
2.0
1.0
TITLE
DETAIL OF FLEXIBLE
CONNECTOR
6
USED ON
REVOLUTION
MATERIAL
6
SPECIFICATION
ISS
DATE
CN.
BY
CHKD
ISS
Product
Code
BY
CN.
CHKD
DATE
ISS
DATE
CN.
BY
CHKD
ISS
CN.
BY
CHKD
DATE
ISS
Fan
Dia.
A
FINISH
DATE
Weight
kg
DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE
CN.
BY
CHKD
ISS
CN.
B
BY
CHKD
DATE
ISS
CN.
A
063-0250-SC250
063-0315-SC250
063-0400-SC250
063-0500-SC250
063-0630-SC250
C
250150
315150
400150
500150
630200
D
C
CHKD
DATE
0.5
0.6
0.9
1.2
1.4
B
DRAWN BY
ELTA FANS LTD,
17 BARNES WALLIS ROAD,
SEGENSWORTH INDUSTRIAL ESTATE,
FAREHAM, HAMPSHIRE. PO15 5ST.
Tel. 01489 566500 Fax. 01489 566555
7
B
A3 Fan
7
BY
HH
DATE
CN.
ISS
SCALE
CHKD
DATE
STATUS
1:3
BY
ISS
F
Product
CodeWB-SLC-007
DRAWING No.
APPROVED
24/07/06
Elta Fans Ltd. own the copyright of this drawing/
specification document which is supplied in
confidence and which must not be used for any
purpose other than that for which it is supplied
and must not be reproduced without permission
in writing from its owners Elta Fans Ltd.
E
CHECKED
CN.
BY
ISS
CHKD
DATE
DATE
A
SHEET
BY
CN.
OF
1
ISS
1
ISSUE
CN.
G
BY
061B-0250
061B-0315
061B-0400
061B-0500
061B-0630
CHKD
CHKD
DATE
B
C
D
3rd ANGLE PROJECTION
Dia.
A
A
ISS
DATE
CN.
B
Weight
kg
D
C
DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE
BY
ISS
CN.
BY
ISS
CN.
BY
250325 30
315375 30
400475 40
500585 45
630715 45
CHKD
DATE
CHKD
C
E
CHKD
DATE
D
ISS
CN.
1.5
1.5
1.5
2.0
2.0
DATE
BY
0.5
0.7
1.2
2.6
3.5
CHKD
DATE
24/
Elta Fans Ltd. own the copyright of this drawing/
specification document which is supplied in
confidence and which must not be used for any
purpose other than that for which it is supplied
and must not be reproduced without permission
in writing from its owners Elta Fans Ltd.
SCAL
E
F
F
G
Anti-Vibration Mounts
1
A
B
E
D
C
F
TAPPED HOLE
2
G
Product
Code
DRAW
ELTA FANS LTD,
17 BARNES WALLIS ROAD,
SEGENSWORTH INDUSTRIAL ESTATE,
FAREHAM, HAMPSHIRE. PO15 5ST.
Tel. 01489 566500 Fax. 01489 566555
C
DO NOT SCALE-IF IN DOUBT, ASK!
3
5
E
DO NOT SCALE-IF IN DOUBT, ASK!
1
2
4
D
3rd ANGLE PROJECTION
A
B
C
D
E
F
G
3
Weight
kg
4
· Fit directly to mounting feet
· Rubber with steel insert
· Supplied as set of 4, 062-S1G
64
50
43
5.5
20
M6
7
0.040
WEIGHT
PRODUCT CODE
complete with fixings
A
B
C
D
E
F
G
Kg
062-S2
0.100
6457 50
0.040
M8
5.5 520
43
M632 ÿ7
062-S1G 80
062-S2B
45
12 x 9 0.100
0.100
062-S2
062-S2G
0.102
062-S2B
062-S2G
80
57
45
5
32
M8 12x9
NOTE: REFER TO PERFORMANCE CHART FOR AV SELECTION
0.100
0.102
ANY DEVELOPMENT VIEWS SHOWN ON
THIS DRAWING ARE SHOWN FOR
REFERENCE PURPOSES ONLY. USE
OF THESE VIEWS FOR MANUFACTURING
PURPOSES ARE AT SUPPLIERS RISK.
THIS IS A C.A.D. PRODUCED DRAWING
AND THEREFORE NO SUBSEQUENT
MANUAL MODIFICATIONS WILL BE
ALLOWED.
TOLERANCES UNLESS
OTHERWISE STATED.
© Elta Fans Ltd
TITLE
±
1.0
5
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Cylindrical & Conical
Accessories
A
B
C
D
E
3rd ANGLE PROJECTION
F
G
DO NOT SCALE-IF IN DOUBT, ASK!
AXIAL FLOW
Mounting Feet
1
D
1
G
A
2
4-HOLES
2
H
· For free standing mounting of ducted fans
· Fixes directly to fan case flange
· Hot dipped galvanised steel
3
F
B CTS
3
E
C
4
4
PRODUCT CODE
Product
Code
060B-0315
060B-0250-B
060B-0400
060B-0315-B
060B-0450
060B-0400-B
060B-0500
060B-0500-B
060B-0560
060B-0400
060B-0630
060B-0500
060B-0710
060B-0630
060B-0800
6
200
350
230
300
A
Fan Code
060B-0350
5
315
D
Fan C
A
Dia.
315
265
180
FAN
DIA.
F
E
B
B
40
23
350
40
23
210
H
WEIGHT
KG
3
9
1.0
3
9
G
C
D
E
F
1.3
SB250-CON250220 206256 - 40
250
350
400
1.5
27.5
9
230
50
4
SB315-CON315250 265315 - 40
2.0
450
27.5
400
280
11
450
255
50
4
SB400-CON400305 350400 - 50
2.5
500
290
11
50
4
315
27.5
450
500
SB500-CON500370
450500
-
50
355
510
4.0
560
32
11
560
330
60
5
SB400-CYL
400250
350400230
50
580
375
5.0
630
60
32
400
11
5
630
SB500-CYL
450500290
50
710
5.5
32
660500315
450
11
710
425
60
5
SB630-CYL
630400
580630375
60
PROJECTION
800
6.0
475
60
11
500
5
32 3rd ANGLE
750
800
400
A
B
C
060B-0900
900
560
850
900
530
70
36
6
11
9.0
1
060B-1000
1000
630
950
1000
595
70
36
6
13
12.0
H
G
23
23
27.5
27
27.5
27
32
Weight
kg
3 9 1.0
3 9 1.5
4 9 2.0
4 11 3.0
4 11 1.5
4 11 2.5
5 DO11
5.0 IN DOUBT, ASK!
NOT SCALE-IF
D
E
ANY DEVELOPMENT VIEWS SHOWN ON
THIS DRAWING ARE SHOWN FOR
REFERENCE PURPOSES ONLY. USE
OF THESE VIEWS FOR MANUFACTURING
PURPOSES ARE AT SUPPLIERS RISK.
5
THIS IS A C.A.D. PRODUCED DRAWING
AND THEREFORE NO SUBSEQUENT
MANUAL MODIFICATIONS WILL BE
ALLOWED.
TOLERANCES UNLESS
OTHERWISE STATED.
±
1.0
TITLE
DETAIL OF MOUNTING
FEET
6
USED ON
REVOLUTION
MATERIAL
SPECIFICATION
FINISH
POD FITTED TO EP TYPE ONLY
DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE
BY
ISS
CN.
Silencers
CHKD
DATE
BY
ISS
BY
CN.
ISS
CN.
BY
ISS
CN.
BY
ISS
CN.
BY
ISS
CN.
ISS
BY
CN.
7
BY
CHKD
DATE
A
DATE
CHKD
CHKD
DATE
B
CHKD
DATE
CHKD
DATE
C
CHKD
DATE
D
DATE
WB-SLC-002
APPROVED
STATUS
SHEET
1:3
3
Pre-galvanised sheet steel with perforated steel lining
Infill of glass tissue faced high density mineral wool
For saturated or other special applications please refer to Elta
4
Product
Code
Fan
A
PRODUCT CODE
Dia. 1D
068-0250-*D**P
A A
2D 1D
B2D
B
250
500
350
A
C
C
8
068-0250-*D**P 250250500350
8
315
630
415 8
068-0315-*D**P
068-0315-*D**P 315315630417
8
350
700
450 8
068-0350-*D**P
068-0400-*D**P 400400800500
12
400
800
500 8
068-0400-*D**P
068-0500-*D**P 500
5001000652
12
12
450
900
602
068-0450-*D**P
068-0630-*D**P 630
6301260782
12
12
500
1000
653
068-0500-*D**P
5
1 or 2
SEE DIM ‘A’
6
068-0560-*D**P
E = WITH POD or
EN = WITHOUT POD
068-0630-*D**P
560
630
1120
1260
D
D
M8
EE
286
1
G
A
C No. D TAPPED HOLES
ON E - PCD
OF
1
F
·
·
·
A3
DRAWING No.
24/07/06
SCALE
E
2
AIR-FLOW
CHECKED
HH
Elta Fans Ltd. own the copyright of this drawing/
specification document which is supplied in
confidence and which must not be used for any
purpose other than that for which it is supplied
and must not be reproduced without permission
in writing from its owners Elta Fans Ltd.
C
CHKD
DRAWN BY
ELTA FANS LTD,
17 BARNES WALLIS ROAD,
SEGENSWORTH INDUSTRIAL ESTATE,
FAREHAM, HAMPSHIRE. PO15 5ST.
Tel. 01489 566500 Fax. 01489 566555
FAN DIA
DATE
CN.
B
ISS
POD DIA
7
Weight kg
ESTIMATED WEIGHT Kgs
1DENP
1DEP
2DENP
2DEP
9
11
15
17
1DENP1DEP 2DENP 2DEP
M8
299
7
M8
356
9
119 15 11
17
M8
355
9
1118 15
M8
395
11
13
21
M10450
13 161622 22
26
436
13
M8
M10
560
18 1822 27 32
31
487
15
M8
M10
690
26
32 32 48
37
22
541
18
M8
713
16
M10
605
22
26
39
46
783
16
M10
674
26
32
48
57
13
17
26
37
57
© Elta Fans Ltd
ISSUE
A
t: 01384 275800
f: 01384 275810 visit: eltafans.com
Biflow SB - Cylindrical & Conical
Accessories
A
B
C
D
3rd ANGLE PROJECTION
Wire Guards
AXIAL FLOW
A
B
C
D
E
Bell Mouth Inlets
F
1
3rd ANGLE PROJECTION
DO
D
G
DO NOT SCALE-IF IN DOUBT, ASK!
C
1
1
A
B
2
2
2
PRODUCT CODE
241-0350-BELL
3
FAN
DIA
A
B
WEIGHT
KG
078C-0315-C
315
335
21
1.1
078C-0400-C
400
420
26
1.6
241-0500-BELL
078C-0450-C
450
470
29
1.8
241-0560-BELL
078C-0500-C
500
520
32
2.2
078C-0560-C
560
585
32
2.5
078C-0630-C
630
665
40
2.6
241-0400-BELL
241-0450-BELL
A
E
3
B
PRODUCT
CODE
3
4
241-0630-BELL
241-0710-BELL
4
4
241-0800-BELL
241-0900-BELL
50
3.2
730
· For 710
improved
airflow
in 50
078C-0800-C
3.5
800
820
end
of
duct
applications
078C-1000-C
4.5
1000
1020
60
· Fixed directly to fan case flange
· Hot dipped galvanised steel
· Available to order
078C-0710-C
241-1000-BELL
5
5
GUARD FIXING
CLIPS
ANY DEVELOPMENT VIEWS SHOWN ON
THIS DRAWING ARE SHOWN FOR
REFERENCE PURPOSES ONLY. USE
OF THESE VIEWS FOR MANUFACTURING
PURPOSES ARE AT SUPPLIERS RISK.
TOLERANCES UNLESS
OTHERWISE STATED.
6
6
5
THIS IS A C.A.D. PRODUCED DRAWING
AND THEREFORE NO SUBSEQUENT
MANUAL MODIFICATIONS WILL BE
ALLOWED.
±
1.0
TITLE
DETAIL OF INLET
GUARD
6
USED ON
MULTIFLOW SMC
Product
Code
7
ISS
CN.
BY
078C-0250-C
078C-0315-C
078C-0400-C
078C-0500-C
078C-0630-C
CHKD
DATE
Fan
Dia.
ISS
DATE
A
A
B
Weight
kg
· Bright zinc plated steel
250270 18 0.9 · Fix with clips
& screws 315335 21 1.1
provided
400420 26 1.6
CN.
BY
CHKD
ISS
BY
CN.
ISS
CHKD
DATE
DATE
CN.
BY
CHKD
ISS
CN.
CHKD
DATE
B
BY
ISS
CN.
BY
CHKD
DATE
C
ISS
CN.
CHKD
DATE
ISS
CN.
BY
CHKD
DATE
D
E
500520 32 2.2
B
Non Return Dampers
ISS
DRAWN BY
ELTA FANS LTD,
17 BARNES WALLIS ROAD,
SEGENSWORTH INDUSTRIAL ESTATE,
FAREHAM, HAMPSHIRE. PO15 5ST.
Tel. 01489 566500 Fax. 01489 566555
C
630655 40 2.6
A
Product
Code
DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE
BY
7
Fan
Dia.
A
24/07/06
Elta Fans Ltd. own the copyright of this drawing/
specification document which is supplied in
confidence and which must not be used for any
purpose other than that for which it is supplied
and must not be reproduced without permission
in writing from its owners Elta Fans Ltd.
BY
CHECKED
HH
DATE
DATE
MATERIAL
CN.
CHKD
SPECIFICATION BY
CN.
ISS
B
ISS
DRAWING No.
CHKD
DATE
SCALE
A3
CHKD
DATE
1
241B-0250* 1:3 250315
241B-0315*
315380
241B-0400-BELL400 485
241B-0500-BELL500 585
241B-0630-BELL630 715
STATUS
SHEET
F
OF
G
CN.
BY
ISS
E
CHKD
DATE
DATE
CN.
Weight
kg
BY
ISS
CHKD
B
CN.
BY
CHKD
DATE
C
3A
3
3
3
3
1
ISS
D
7
WB-SMC-009
APPROVED
A
BY
CN.
C
FINISH
ISSUE
50
58
75
93
105
D
3rd ANGLE PROJECTION
E
F
2.0
2.5
4.5
6.2
9.0
G
DO NOT SCALE-IF IN DOUBT, ASK!
1
1
C
G HOLES H
ON J PCD
E
2
·
·
·
·
·
·
Prevents reverse flow of air when fan not operating
Fixed directly to fan case flange
Hot dipped galvanised steel
Galvanised steel butterfly type blades
Suitable for horizontal or vertical (upward airflow) mounting
Available to order
2
3
3
A
B
Product
Code
4
019-0250-STD
019-0315-STD
019-0450-STD
019-0500-STD
019-0630-STD
5
D
6
Fan
Dia.
A
B
PRODUCT CODE
C
D
FAN DIA.
A
E
B
250306170170
019-0315-STD
375
315
315375180210
019-0350-STD
425
350
450530220280
019-0400-STD
475
400
019-0450-STD
530
450
500585220315
019-0500-STD
585
500
630715250420
019-0560-STD
560
645
019-0630-STD
630
715
019-0710-STD
710
795
G
C
1.6
180
2.0
185
3.0
220
220
3.0
220
3.0
220
250
250
D
E
G
8 10
2.0
8
210
8 3.010
8
235
8 3.012
8
270
280
8
123.012
3.0
12
315
12 12
375
3.0
12
420
3.0
12
470
3.0
019-0800-STD
800
885
300
525
3.0
019-0900-STD
900
1000
300
590
4.0
Weight
kg
J
H
H
WEIGHT
J
280 7.0
10
355
355
7.5
10
395
500
12.0
12
450
12
500
560
18.0
12
560
690 25.0
ANY DEVELOPMENT VIEWS SHOWN ON
THIS DRAWING ARE SHOWN FOR
REFERENCE PURPOSES ONLY. USE
OF THESE VIEWS FOR MANUFACTURING
PURPOSES ARE AT SUPPLIERS RISK.
THIS IS A C.A.D. PRODUCED DRAWING
AND THEREFORE NO SUBSEQUENT
MANUAL MODIFICATIONS WILL BE
ALLOWED.
12
12
CN.
DATE
D
316
395
515
630
780
* Inlet cone
C
ISS
620
690
16
TOLERANCES UNLESS
OTHERWISE STATED.
16
TITLE
12
770
12
860
±
DETAIL OF NON
4
KG
7.5
8.0
9.0
14.5
16.5
5
20.0
22.5
29.0
1.0
34.0
15 RETURN
970
© 16
Elta Fans
Ltd
DAMPER 59.0
6
Elta Fans Ltd - Applied Technology
Elta Fans Ltd - Building Services
17 Barnes Wallis Road,
46 Third Avenue,
Segensworth East Industrial Estate,
Pensnett Trading Estate, Kingswinford,
Fareham, Hampshire, P015 5ST, United Kingdom.
West Midlands, DY6 7US, United Kingdom.
Visit: eltafans.com
e-mail: mailbox@eltafans.co.uk
Applied Technology:
Tel: +44 (0) 1489 566500
Fax: +44 (0) 1489 566555
Building Services:
Tel: +44 (0) 1384 275800
Fax: +44 (0) 1384 275810
Export:
Tel: +44 (0) 1489 566500
Fax: +44 (0) 1489 566555