Multiflow Ex Series – MMD636/2Ex
Performance Curve - MMD636/2Ex
Multiflow Series mixed flows fans are duct mounted mixed-flow fans is suitable for supply or exhaust from applications ranging from residential, through commercial, to industrial.
A particular feature of this product is its low noise levels.
Construction
Galvanised steel housings with modern flange connections.
Impellers are the Elta patented adjustable-pitch mixed-flow design.
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.
Standard motors can be single or multi-speed and can be speed-controlled using inverters.
Internal Thermal Protection
These can be provided as an optional extra to standard motors.
Testing
Air flow tests to BS848:Part 1, 1980.
Noise data tests to BS848:Part 2, 1985
Special Features
Sizes 250-450 are available in a choice of two pitch settings.
Sizes 500-800 are available in a choice of four or five pitch settings.
All sizes provide a wide range of capacities.
Fan units are light in weight and can be mounted at any angle.
Suggested Specification
The Multiflow Series shall be as designed and manufactured by Fantech Pty Ltd and be of the model numbers shown on the schedule/drawings.
The mixed-flow impellers shall be driven by explosion-proof direct driven motors.
All models shall be fully tested to BS848:Part 1, 1980 for air flow and to BS848:Part 2, 1985 for noise.
Technical Data - MMD636/2Ex
Speed [rps] | Avg. dBA @ 3m | kWatts (Input) | Amps | Max.°C | Approx. Weight [kg] |
---|
16 | 61 | 1.5 | 3.61 | 40 | 105 |
Type | 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K |
---|
Inlet | 82 | 81 | 79 | 77 | 76 | 75 | 70 | 62 |
Dimensions
*All dimensions in mm, unless otherwise stated
Wiring Diagram

Diagram shown is for single-speed only.
For 2-speed and special motors, contact Fantech for details.
Ancillaries

POW63MF
Matching Flanges

FT3
Mounting Feet

POW63SIL
PowerLine Series Attenuators