Fan Box In-Line Centrifugal Duct fans - FB

This product range is now obsolete and no longer available from Vent-Axia. The information here is provided for reference only.

At a Glance:

Air volumes up to 1.08m³/s
Suitable for external pressures up to 430Pa
Designed to suit duct diameters from 100 to 500 mm
Operating Temperatures up to +40°C
Speed Controllable

FAQs Answered:

2 Year Warranty
Quality Assurance to BS EN ISO 9001:1994
Performance tested to BS848 Part 1 1980

The Fan Box In-Line fans shall be as supplied from Roof Units, designed around a high performance forward curved centrifugal impeller.

The casing shall be specially designed to allow the unit to be mounted via drop rods or anti vibration mounts, ensuring a quick and easy solution to installation of the Fan Box in-line duct fans. All manufacturing of the Fan Box units are computer designed and controlled to BS EN ISO 9001 Standards.

The units shall be manufactured from prime quality galvanised sheet steel.

The Fan Box range are to be suitable for circular ducting ranging in sizes 100, 125, 150, 160, 200, 250, 315, 400 and 500mm, with air volumes from 0.064m3/s to 1.08m3/s and pressure development of up to 430Pa.

Impellers
The forward curved centrifugal impellers shall be aerodynamically designed, utilising computer technology. The motor and impeller shall be factory matched, statically and dynamically balanced on precision machines, to ISO 1940 Grade 6.3., to give quiet, vibration free running. The aerodynamic blades and motor housing shall be manufactured from prime quality galvanised sheet steel.

Motors
Motor insulation Class B, suitable for operating temperatures up to +40°C and atmospheres up to 95% RH. All sizes are ideally suitable for speed control by electronic or voltage reduction.

Performance
The fan performance, shall be in accordance with tests to BS848 Part 1 1980, with the fan sound levels, measured in a reverberant chamber in accordance with BS848 Part 2 1985.

Quality Assurance
Design and manufacture shall be in accordance with the standard for quality management systems BS EN ISO 9001:1994.

Accessories
A full range of accessories are available with the Fan Box range of fans such as:

- Electronic Speed Controllers
- Auto Transformer Speed Controllers
- D.O.L. Starters
- Standard, Acoustic & Thermal Flexible Ducting
- Pre-Panel or Secondary Bag Filters
- Electric Heater Batteries
- Backdraught Shutters
- In-Line Attenuators
- Wall & Roof Terminals
- Fast Clamps

DIMENSIONS:

PLEASE NOTE
1. Drop rods (up to M8) can be used on the base flange when mounting the unit upside down.
2. AVM’s can be fitted to either side or the base of the unit.
3. An access provision above the lid of each unit, no less than the respective A dimension must be made.

Unit Size	A	B	C	D	E	Approx Weight (kg)
FB100B	268	363	171	272	97	13
FB125B	268	363	171	272	122	13
FB150B	322	400	203	336	147	13
FB160B	322	400	203	336	157	13
FB200B	322	400	203	336	197	18
FB250B	472	614	320	499	247	23
FB315B	530	630	300	560	312	33
FB400B	530	630	300	560	397	48
FB500B	530	630	300	560	497	72

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ESTIMATED RUNNING COSTS

Calculate estimated running costs for this product using the tool below.
For average costs*, leave the default values in place or enter your own figures in the boxes to recalculate.
Where a product has multi speeds, a typical installation has been used for the below calculations. *Running cost does not include the use of the heater on the heater model

Based on the inputted figures, estimated running costs would be:

Overview