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MULTIFLOW SERIES
DUCT MOUNTED FANS
B
© FANTECH
2016
The Multiflow Series of In-Line Mixed-Flow Fans is designed for a
wide range of duct mounted applications. They are most suitable
in applications where higher air flows are required at medium
pressures. A particular feature of this product is its low noise
levels in comparison to axial and centrifugal selections.
They are available in various speed options and in 9 sizes,
extending from 250 to 800mm diameter.
Typical Applications
Commercial and industrial supply or exhaust air applications
such as shopping centres, office buildings, exhibition centres,
hotels, health centres, schools and universities.
Features
O
Robust, yet lightweight galvanised steel construction.
O
Easy to fit 35mm TDF profile flange connections.
O
Patented, adjustable pitch, mixed-flow impellers.
O
Large choice of speeds available.
O
To improve energy efficiency motors can be speed-controlled.
O
Motors complying with Ex d, Ex e, Ex nA and Ex tD.
Standards can be fitted.
O
Can be mounted in any position.
O
A range of matching ancillaries is also available.
Construction
Galvanised steel housings with 35mm TDF profile flange connections.
Patented, adjustable pitch, mixed-flow impellers made from
aluminium.
Sizes 250 to 450 are available in a choice of 2 impeller pitch
angle settings.
Sizes 500-800 are available in a choice of 4 or 5 impeller pitch
angle settings.
Motors
Type - standard TE motors.
Electricity supply - single or three-phase to suit a wide range of
voltages and frequencies.
Bearings - sealed-for-life, ball.
Motors can be single or multi-speed.
Three-phase motors for size 500 to 800, can be speed-controlled
using variable speed drives.
See pages
O-3/4
for details on standard TE motors.
If motors complying with Ex d, Ex e, Ex nA and Ex tD. Standards
are required, selections can be made from these pages.
Internal thermal Protection
Manual-reset protection is supplied as standard up to size 450.
For fans 500 and above, thermal protection is an optional extra.
Testing
Air flow tests to BS848:Part 1, 1980
Noise tests to BS848:Part 2, 1985
Wiring Diagram
See pages
N-6/7
, diagrams
DD1, 2, 3, 5, 6, 9
The Multiflow Mixed-Flow In-Line Fans shall be as designed and
manufactured by Fantech Pty Ltd and be of the model numbers
shown on the schedule/drawings.
The mixed-flow impeller shall be of patented, adjustable pitch
design, manufactured from aluminium and driven by standard
TE motors.
Housings shall be of galvanised steel with 35mm TDF profile
flange connections.
All models shall be fully tested to BS848:Part 1, 1980 for air flow
and BS848:Part 2, 1985 for noise.
Variable speed drives
Ref.
M-8-13
Vibration Isolators
Ref.
I-1
POW - Matching Flanges
Ref.
J-4
FT - Mounting Foot
Ref.
J-6
VA - Speed controllers
Ref.
M-5
SD - Star/Delta switch
Ref.
M-7
DESCRIPTION
ANCILLARY EQUIPMENT
SUGGESTED SPECIFICATION
HOW TO ORDER
B-42
* Please check with your local Fantech office if Ex d motors are available for
a specific selection.