Application Guide

General ventilation and extraction
Fire safety & life systems
Catering
Education: schools/universities
Healthcare
Industrial
Leisure: Venues/stadiums
Offices
Retail: malls/supermarkets
Residential: hotels/apartments
Stairwell pressurization
Smoke extract (inc loading bays)t
Toilet extract
Kitchen extract
Demand control ventilation
(fan controls)
Cooling and refrigeration
Electro-mechanical cooling
Environmental control - crop storage
Petrochemical process ventilation
Emergency ventilation options up to 400°C/2 hours
Pressure testing

Sizes
40JM.Bif - 400mm, 50JM.Bif - 500mm, 63JM.Bif - 630mm, 80JM.Bif - 800mm.
800 and 1000mm JM.Bif available please contact Fläkt Woods for details.
Also larger sizes are available, please enquire.

Fan Performance
Coupled with the above fan diameters the fully adjustable pitch Aerofoil impeller gives the
exact performance required with a non overloading fan characteristic. Higher pressures are
obtained by multi-staging the Bifurcated Aerofoil fan.

Impellers
A unique high efficiency aerofoil section blade with a purposely smoothed hub and clamp
plate for adjustable pitch angle availability.
The Fläkt Woods impellers are all high pressure die cast to off er thin aerofoil sections for low
generation of noise. Every component is X-rayed using Real Time Radiography inspection
prior to assembly. The maximum pitch angles shown allow for speed control by frequency
inverter.

Motors
All motors are totally enclosed fan cooled class F insulation with protection to IP55.
All motors are supplied with sealed for life bearings or extended lubricators.
These motors are suitable for inverter speed control down to 20% of full speed.

Electrical Supply
380 - 420V / 50Hz / 3 φ

Temperature Range
Up to 200˚C continuous operation.

Casings
Bifurcated fans are available long case only. Long
casing covers impeller and motor and has duct
mounted terminal box. The hot dipped galvanised
casing gives a high resistance to corrosion.

Accessories
Silencers, Mounting feet, Vibration isolators, Matching
flanges, Flexible connectors, Guards, Bell mouth inlets.