Civil Fans
JY Negative Pressure Ventilation Fan
| Product | JY Negative Pressure Ventilation Fan | ||
| Category | Civil Fans | ||
| Description | The negative pressure fan uses the cooling principle of air convection and negative pressure ventilation: it naturally draws fresh air in from opposite doors or windows and quickly forces indoor sultry gas outside. Any poor ventilation problem can be improved mechanically — with reasonable layout, cooling and air exchange effects can reach over 90%. After installation, air movement accelerates and air exchange can reach 60–120 times per hour, creating a smooth, fresh and comfortable working environment and thoroughly improving indoor sultriness, odor, black smoke and dirty gas. Models from JY-33 to JY-153 offer power of 0.12–1.5 kW and airflow of 1000–54000 m³/h, suitable for greenhouses, factories and farms. | ||
| JY-33 | 0.12 | 330×330×320 | 1000 |
| JY-38 | 0.18 | 380×380×320 | 2500 |
| JY-48 | 0.25 | 480×480×320 | 4500 |
| JY-58 | 0.37 | 580×580×320 | 7000 |
| JY-68 | 0.55 | 680×680×320 | 12000 |
| JY-80 | 0.37 | 800×800×370 | 20000 |
| JY-100 | 0.55 | 1000×1000×400 | 30000 |
| JY-122 | 0.75 | 1220×1220×400 | 37000 |
| JY-138 | 1.1 | 1380×1380×400 | 44500 |
| JY-153 | 1.5 | 1530×1530×400 | 54000 |
Key Features
- Efficient cooling: negative pressure convection, 90%+ cooling effect
- High air exchange: 60–120 times per hour
- Better environment: removes sultriness, odor, black smoke and dirty gas
- Full range: JY-33 to JY-153, airflow up to 54000 m³/h
- Low power: only 0.12–1.5 kW, low running cost
- Flexible install: factories, greenhouses, farms
Applications
- Ventilation and cooling in factory workshops
- Air exchange in greenhouses
- Cooling and odor removal in farms
- Ventilation in warehouses and garages
FAQ
Q1: How effective is the cooling?
With reasonable layout, cooling and air exchange can reach over 90%.
Q2: How many air exchanges per hour?
60–120 times, depending on layout and fan quantity.
Q3: Is it suitable for farms?
Yes — effectively cools, deodorizes and improves air quality.
Q4: What models are available?
JY-33 to JY-153, airflow 1000–54000 m³/h, power 0.12–1.5 kW.
Technical Specifications
| Model | Power (kW) | Size (mm) | Airflow (m³/h) |
|---|---|---|---|
| JY-48 | 0.25 | 480x480x320 | 4500 |
| JY-90 | 0.75 | 900x900x400 | 28000 |
| JY-153 | 1.5 | 1530x1530x400 | 54000 |
| JY-33 | 0.12 | 330×330×320 | 1000 |
| JY-38 | 0.18 | 380×380×320 | 2500 |
| JY-58 | 0.37 | 580×580×320 | 7000 |
| JY-68 | 0.55 | 680×680×320 | 12000 |
| JY-80 | 0.37 | 800×800×370 | 20000 |
| JY-100 | 0.55 | 1000×1000×400 | 30000 |
| JY-122 | 0.75 | 1220×1220×400 | 37000 |
| JY-138 | 1.1 | 1380×1380×400 | 44500 |
* Parameters are for reference only; the actual product prevails. Custom specifications are available on request.
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Zhejiang Jiayi Fan Co., Ltd. — professional ventilation and air compressor manufacturer since 2003, exporting to 50+ countries. Send us your requirement for a full catalog and quotation.