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Poultry House Ventilation Fans

Poultry houses need steady air exchange: birds produce heat and moisture continuously, and stale, humid air harms the flock well before any thermometer shows a problem. The slope and elbow pages both list poultry houses and livestock farms among their applications, and the elbow page publishes the noise figures that matter when a fan sits on a farm building. This page gathers what those two pages state for poultry and livestock buildings.

What the source pages list for poultry and livestock

The slope page describes its fan as serving factories, poultry houses, greenhouses and warehouses in Southeast Asia's climate, and lists large farms, greenhouses and livestock farms among its agricultural applications. The elbow page lists large-scale farms, greenhouses and poultry and livestock among its agricultural applications. Neither page states a ventilation rate per bird, a house size, or a temperature target, and this site claims none of those: poultry ventilation rates depend on the birds, the house, the climate and the season, and they belong in a project calculation with the house described, not in a general product claim. What the pages do give the buyer is the fan side of the equation — models, airflows, noise figures and dimensions — and the application pages are built on that side only.

Airflow and noise from the elbow table

The elbow models run from 28,000 m³/h on DH-850EL to 45,000 m³/h on DH-1460EL, with noise figures of 55 dB on the smallest model, 60 dB on the two middle models, and 65 dB on the largest. Those are the only noise figures any source page publishes, and they are the verified starting point for a poultry buyer who must keep fan noise away from the birds and from neighbouring houses. The slope models run at 28,000 and 45,000 m³/h, with no noise figure published, so a slope buyer with a noise limit must ask for the figure rather than assuming it matches the elbow range. Both families run on 380 or 220 V at 50 Hz, with six blades as standard, and both use FRP housings suited to the humid, corrosive air of a livestock building — the elbow housing is described as smooth-surfaced, UV and weather resistant, for indoor and outdoor use.

Fresh air and negative pressure in a poultry house

The elbow page describes its fan as creating a negative-pressure indoor environment while introducing fresh air. In a poultry house that principle is the whole ventilation system: fans pull air out, and fresh air enters through inlets placed to sweep the house, so heat, moisture and ammonia leave with the exhaust air. The inlets, the fan positions and the control of fan numbers against the season are the design work, and no source page publishes an inlet size, a fan count per house, or a control schedule, so all of that belongs in the inquiry, with the house dimensions, bird numbers and climate described. A buyer who is quoted a fan count from floor area alone, without the house described, is being quoted a guess.

Housing material and shutters in farm air

Farm air is humid and carries dust, feathers and ammonia, which punish bare steel. The slope family uses a hand-laid FRP shell with a secondary-treated smooth surface, and the elbow family uses an SMC fibreglass frame and blades with a smooth-surfaced FRP housing. The elbow family adds PVC shutters against flies and backflow, which matter in a livestock building where flies are a constant problem and backflow on a still day pushes stale air back in. Blade materials on the elbow family are customizable to cast aluminium, nylon or stainless steel, and the slope family lists 7 nylon blades and 3 cast aluminium blades as options against its standard six-blade SMC assembly. Which blade material suits a given farm's air is a question for the inquiry, with the farm's conditions described.

What to send with a poultry inquiry

• The house dimensions, bird numbers and ages, and the climate and season the fans must handle.
• The roof openings or wall positions available, and the voltage at the fan positions: 380 or 220 V, 50 Hz for slope and elbow models.
• The noise limit, if any, at the house and at the boundary — the elbow figures give the verified starting point.
• The inlet arrangement: how fresh air enters, and whether the house can hold the negative pressure the elbow page describes.
• MOQ, lead time and warranty, which no source page states and which must be confirmed before payment.

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