Multiflow
In-Line Mixed-Flow Fan
- 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.
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Overview
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 airflows 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.
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Features and Benefits
Design
Robust and lightweight design perfect for a wide range of duct mounted applications. They are most suitable in applications where higher airflows are required at medium pressures.
Low Noise
A particular feature of this product is its low noise levels in comparison to axial and centrifugal selections.
Protection
Manual-reset protection is supplied as standard up to size 450. For fans 500 and above, thermal protection is an optional extra.
Testing
All units are tested to BS848:Part 1, 1980 (airside performance) and BS848:Part 2, 1985 (sound performance).
Specification
Casing
The Multiflow Series is manufactured with galvanised steel housings and 35mm TDF profile flange connections.
Impeller
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
The fans are driven by standard TE motors with sealed for life ball bearings. The motor requires an electricity supply of single or three-phase to suit a wide range of voltages and frequencies. If motors complying with Ex d, Ex e, Ex nA and Ex tD. Standards are required, contact your local Elta Fans office.
Control
To improve energy efficiency motors can be speed-controlled. Motors can be single or multi-speed. Three-phase motors for size 500 to 800, can be speed-controlled using variable speed drives.
Typical Applications
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