VentilationChoosing an exhaust fan for your poultry house
Cone, butterfly, drop hammer or centrifugal shutter: what the air volume figure means, how many fans a house needs, and the voltage question to settle.

Galvanised shutter fan with centrifugal opening — 50 inch and 36 inch models up to 43,170 m³/h.
Price on request— quoted per house size and configuration
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A shutter-type exhaust fan whose louvres are driven open by centrifugal action as the blade comes up to speed, and fall closed when it stops. That keeps the house sealed when the fan is off, which matters for minimum-ventilation control in cold weather.
Background reading on where this equipment fits in a poultry house.
VentilationCone, butterfly, drop hammer or centrifugal shutter: what the air volume figure means, how many fans a house needs, and the voltage question to settle.
Ventilation & CoolingCorrosion-proof fiberglass cone fan in three frame sizes, moving 32,000 to 45,000 m³/h on a 0.75KW motor.
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Ventilation & CoolingThe widest range in the line — six sizes from 30 inch to 55 inch, 22,000 to 52,000 m³/h.