FlexLine Ex Series – FLD312DDEx
Performance Curve - FLD312DDEx
Description
The FlexLine Series of backward-curved centrifugal fans has been developed for ducted applications requiring high pressures.
They are available in various speed options and 8 sizes, extending from 315 to 710mm diameter.
Features
- Single-width, single-inlet housings.
- Robust galvanised steel and aluminium construction.
- High efficiency, low noise backward-curved centrifugal impellers.
- Large choice of speeds available.
- Easy to fit 35mm TDF profile flange connections.
- To improve energy efficiency, motors can be speed-controlled.
- Motors complying with Ex d, Ex e, Ex nA and Ex tD. Standards can be fitted.
Construction
Galvanised steel housings with 35mm TDF profile flange connections and spun aluminium inlet cone.
Includes backward-curved centrifugal impellers.
Motors
Type - standard TEFC squirrel cage induction motors.
Electricity supply - three-phase to suit a wide range of voltages and frequencies
Bearings - sealed-for-life, ball.
The standard motors are speed-controllable using variable speed drives.
Multi-speed motors can be supplied
Motors to meet Ex d, Ex e, Ex nA and Ex tD standards can be fitted to some models.
Internal Thermal Protection
Thermistors can be supplied on request.
Testing
Air flow tests to BS848:Part 1, 1980
Noise tests to BS848:Part2, 1985
Suggested Specification
The duct mounted fans shall be of the FlexLine® Series as designed and manufactured by Fantech Pty Ltd and be of the model numbers shown on the schedule/drawings.
They shall include galvanised steel housings with 35mm TDF profile flange connections and spun aluminium inlet cones.
The backward-curved centrifugal impellers shall be driven by standard TEFC motors as nominated.
All models shall be fully tested as a complete assembled unit to BS848:Part 1, 1980 for air flow and BS848:Part 2, 1985 for noise.
Technical Data - FLD312DDEx
| Speed [rps] | Avg. dBA @ 3m | kWatts (Input) | Amps | Max.°C | Approx. Weight [kg] |
|---|
| 48 | 61 | 1.5 | 3.15 | 40 | 42 |
| Type | 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K |
|---|
| Inlet | 91 | 90 | 81 | 79 | 67 | 73 | 73 | 62 |
Dimensions
| A | B | C | D | E | F | G |
|---|
| 425 | 361 | 212 | 213 | 179 | 246 | 242 |
*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
FLX31MF
Matching Flanges
FLX31F
FlexLine Mounting Feet - Floor Mounted
FLX31FH
FlexLine Mounting Feet - Ceiling Mounted
