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Fresh air supply systems
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Fresh air supply systems Optimum fresh air supply for every poultry house

Fresh air supply systems: the right solution for every type of poultry house! Big Dutchman offers a wide range of fresh air supply systems to ensure optimal provision of fresh air. Depending on the building conditions and the specific requirements of your birds, you can select from a variety of fresh air supply systems that can be used for negative or balanced pressure systems, side or CombiTunnel ventilation: fresh air inlets for installation into the wall or ceiling fresh air chimneys for negative and balanced pressure ventilation large air inlets for tunnel ventilation Let the Big...

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CL-3-1911/F orange flange inlet with high air flow rate CL-3-1911/F black flange inlet with high air flow rate Air flow rate with inlet fully open (in m3 /h) Type with light trap* * When using the light trap, all wall inlets of the CL-3-1200 series have the same reduced air flow rate. Typical broiler house in Northern Europe with fresh air supply through CL-3-1911/F flange inlets Aviary house with CombiTunnel ventilation, equipped with CL-3-1911/F flange inlets and MVT shutters ADVANTAGES 4 ideal supply of fresh air with negative pressure ventilation; 4 advanced inlet control creates stable...

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The flange inlet for very large poultry houses CL Flex is available in different widths, allowing the realisation of different air flow rates. Using a counterweight of one kilogram, the inlet opens when the flap is lowered, i.e. no longer pulled close. The inlet’s optimised geometry and the lateral guide plates create stable air jets and deliver good air circulation in the entire room. During development, special attention was paid to achieving a reliable seal when the inlet is closed. The inlet flap has exceptional aerodynamic properties with a tear-off edge and integrated air guide at the...

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The ideal accessories for Big Dutchman wall inlets Useful, effective and sometimes indispensable! � Protective grille against birds This pest guard prevents birds and small animals from entering the building through the inlet. For the CL-3-1200 series, Big Dutchman offers a self-supporting plastic grille that is available with two different mesh sizes. The grille is attached to the outside of the inlet by a simple locking mechanism. For CL Flex inlets, the guard is made of galfan-coated wire mesh, which attaches easily to the outside of the inlet. � Intake nozzle with protective grille...

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Fresh air inlet for installation in a ceiling below a roof space The CL 1540 ceiling inlet is made from a recyclable, shock-proof, non-deformable and UV-stabilised plastic material. Where possible, it should be installed into a ceiling that has been insulated. Even with a ceiling inclination of up to 15 degrees, CL 1540 will seal securely, due to the strong, corrosionresistant steel springs that keep the insulated inlet flap firmly closed. Fresh air enters the house through the roof space. The roof itself should also be insulated to prevent heat building up during warm weather conditions....

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Balanced pressure inlet CL 1200-Balance For installation in the walls of smaller, narrow houses for free range egg production This special fresh air unit consists of a standard CL 1200 wall inlet, a cowl and a small fan. It is mainly used in houses in which a constant negative pressure ventilation cannot be guaranteed, generally smaller buildings for free range egg production where using fresh air chimneys would not be practical. The large pop holes used in these houses make it impossible to create a consistent air circulation. The fresh air is therefore pushed into the house by a fan, i.e....

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The fresh air chimney for fresh air, mixed air and recirculated air Fumus 3 is equipped with a fan in the lower part of the chimney as standard. This fan pushes the fresh air drawn in by the chimney through the fresh air distributor and into the building. The butterfly valve above the fan regulates the amount of fresh air entering the house. The position of the valve controls how much fresh and recirculated air is drawn into the building. The mix can be anywhere between 100 per cent fresh air and 100 per cent recirculated air. With this control system, a designated amount of fresh air is...

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ADVANTAGES 4 good ventilation of the house due to the large throwing range, ideal to dry the litter; 4 the mixed air creates a constant warm breeze; 4 perfect for cold weather because the air flow always guarantees an ideal throwing range, irrespective of the ventilation level (mixed air); 4 the fan ensures constant air movement: the CL 74 actuator controls the position of the butterfly valve and creates fresh air, mixed air or recirculated air as required (recommendation: individual control). Use of Fumus in a broiler breeder house Fresh air chimney for fresh air supply from the roof...

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LARGE AIR INLETS FOR TUNNEL VENTILATION Using a tunnel or CombiTunnel ventilation system requires large air inlets near the gable ends at each side of the house, or directly in the gable. The inlets allow the fresh air to enter the house over a large surface, displacing the stale air without mixing with it. Fresh air supply over a large surface with the MultiVent inlet Constant and high air speeds at bird level (aim: 2 m/s to 3 m/s) reduce the temperature perceived by the birds (windchill factor). Roller curtain reliably closing a tunnel opening, here in connection with RainMaker MultiVent...

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Tunnel door with rack and pinion drive (TD-L) For large tunnel openings: robust, well-insulated and airtight The Big Dutchman tunnel door TD-L consists of either 40 mm or 50 mm thick composite boards with a robust plastic coating. The frame and the rack and pinion are made from corrosion-resistant aluminium. The EWA actuator allows the infinitely variable opening and closing of the tunnel doors to enable the precise distribution of air. A flexible lip seal ensures tight closing with very little force. Total door lengths of up to 40 m are possible. Broiler house with tunnel door, opening...

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