PROFESSIONAL VENTILATION SYSTEM SOLUTIONS
Integrated design, R&D, manufacturing, and service, delivering efficient and energy-saving ventilation solutions for livestock farming.
24"-36" FRP Chimney Exhaust Fan
Designed for minimum ventilation and winter operation, this roof-mounted chimney fan efficiently removes stale air, moisture, and harmful gases while minimizing heat loss. It helps maintain healthy air quality and optimal livestock house conditions.
24", 32", 36" Fans, Rated Power 0.55kW/0.75kW, 380V, 50Hz, 3-phase
(Custom configurations available)
Function:
To exhaust stale air accumulated in the upper section of livestock and poultry houses. It provides a comfortable indoor environment while saving energy, effectively helps prevent cross-contamination among animals, and reduces the incidence of disease. It performs particularly well during minimum ventilation in winter. Installed on the roof, it only requires a square opening, making construction and sealing much simpler compared to a round opening.
Component Features:
Extension Duct, Exhaust Duct, and Rain Cap Material: XPS (with a low thermal conductivity of ≤0.032 W/m·K and a density of 28 kg/m³) core and 0.8mm FRP inner and outer walls.
Provide thermal insulation, effectively prevents condensation. These components can be nested for shipping, significantly saving transportation costs. Length can be customized according to barn height. Modular design allows for simple installation.
EC Motor:
Specifications: Class F insulation, IP66 protection rating, IE4 or higher energy efficiency class.
Control & Intelligence: Offers simple and superior speed regulation. High level of intelligence includes built-in protection against under-voltage, overload, over-current, locked rotor, overheating, and phase loss. Features an integrated controller with communication support.
Performance: Soft-start with no inrush current ensures a smooth current rise during both startup and speed adjustment, preventing grid impact and resulting in lower operational noise.
Butterfly Damper:
Blade Material: Grade 304 Stainless Steel.
Actuator Brand: BELIMO, with a 5-year warranty.
Configuration Options: Multiple configurations available (actuator power supply: 24V or 220V optional; control signal: on/off or 0-10V analog optional).
| Fan Model | Diameter | Motor Rated Power | Static Pressure | Pa | 0 | -12 | -25 | -37 | -50 | -62 | -75 | Installation Opening (mm) |
| in.H20 | 0 | 0.05 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | |||||
| 24" Chimney Fan | φ650 mm | EC-0.55kW | Airflow | m³/h | 13800 | 12700 | 11600 | 11000 | 10500 | 9700 | 8800 | Hight: 810 |
| cfm | 8100 | 7500 | 6800 | 6500 | 6200 | 5700 | 5200 | |||||
| Energy Efficiency Ratio | m³/h/w | 27.7 | 25.5 | 22.6 | 21.6 | 20.4 | 18.3 | 16.4 | Width: 810 | |||
| cfm/W | 16.3 | 15 | 13.3 | 12.7 | 12 | 10.8 | 9.6 | |||||
| 32" Chimney Fan | φ850 mm | EC-0.75kW | Airflow | m³/h | 20000 | 19100 | 18400 | 17600 | 16600 | 15500 | 14300 | Height: 1010 |
| cfm | 11800 | 11200 | 10800 | 10400 | 9800 | 9100 | 8400 | |||||
| Energy Efficiency Ratio | m³/h/w | 29 | 26.2 | 23.9 | 22 | 20 | 18.3 | 16.4 | Width: 1010 | |||
| cfm/W | 17 | 15.4 | 14.1 | 12.9 | 11.7 | 10.8 | 9.6 | |||||
| 36" Chimney Fan | φ935 mm | EC-0.75kW | Airflow | m³/h | 25300 | 24200 | 22400 | 21100 | 19500 | 17400 | 13900 | Hight: 1110 |
| cfm | 14900 | 14200 | 13200 | 12400 | 11500 | 10200 | 8200 | |||||
| Energy Efficiency Ratio | m³/h/w | 40.8 | 37.4 | 33.4 | 31.2 | 27.8 | 24.5 | 20.1 | Width: 1010 | |||
| cfm/W | 24 | 22 | 19.7 | 18.4 | 16.4 | 14.4 | 11.8 |
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| Fan Model | A | B | C | D | E | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | H1 | H2 |
| 24" Roof Fan | 300 (Field-adjustable) | 800 | 1100 (Customizable to different house height.) | 700 | 280 | φ1500 | φ850 | 800 | 800 | 950 | 900 | 1300 | 1300 | 2900 | 3450 |
| 32" Roof Fan | 825 | 280 | φ1500 | φ1100 | 1000 | 1000 | 1150 | 1150 | 1500 | 1500 | 2950 | 3500 | |||
| 36" Roof Fan | 850 | 280 | φ1500 | φ1100 | 1100 | 1100 | 1250 | 1250 | 1600 | 1600 | 3000 | 3500 |
This FRP chimney exhaust fan is widely used in poultry and swine houses for roof-mounted minimum ventilation, especially during cold weather conditions. It is installed to remove stale air, moisture, and harmful gases from the upper part of livestock buildings while minimizing heat loss. It is ideal for winter ventilation systems and environmentally controlled livestock houses that require stable air quality and energy-efficient operation.
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Q1: What is the main purpose of a chimney exhaust fan?
A: It is designed for roof-mounted minimum ventilation, removing stale air, moisture, ammonia, and harmful gases from poultry and swine houses, especially during winter operation.
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Q2: Why is chimney ventilation important in cold climates?
A: It provides controlled air exchange while minimizing heat loss, helping maintain a stable indoor temperature and healthy air quality during cold weather conditions.
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Q3: What is the advantage of insulated FRP construction?
A: The insulated FRP design reduces heat loss and prevents condensation, improving energy efficiency and ensuring long-term durability in harsh farm environments.
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Q4: How does the EC motor improve performance?
A: The EC motor offers high energy efficiency, precise speed control, soft start, and intelligent protection functions, ensuring stable and reliable ventilation performance.
Integrated design, R&D, manufacturing, and service, delivering efficient and energy-saving ventilation solutions for livestock farming.