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Description
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.
Features
Robust, yet lightweight galvanised steel construction. Easy to fit 35mm TDF profile flange connections. Patented, adjustable pitch, mixed-flow impellers. Large choice of speeds available. 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. Can be mounted in any position. A range of matching ancillaries is also available.
Robust, yet lightweight galvanised steel construction. Easy to fit 35mm TDF profile flange connections. Patented, adjustable pitch, mixed-flow impellers. Large choice of speeds available. 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. Can be mounted in any position. 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.
Motor
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.
Testing
Air flow tests to BS848:Part 1, 1980
Noise tests to BS848:Part 2, 1985
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Technical Data - MMD806/4| Speed [rps] | Avg. dBA @ 3m | kWatts (Input) | Amps | Max.°C | Approx. Weight [kg] |
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| 16 | 68 | 5.5 | 11.9 | 40 | 135 |
| Type | 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K |
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| Inlet | 91 | 90 | 88 | 85 | 84 | 82 | 78 | 68 |
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