Weatherproof FRP Square Negative Pressure Fan Ventilation Unit For Industrial Cooling
FJS-II Type FRP Square Negative Pressure Fan
The FJS-II Type FRP Square Negative Pressure Fan is a high-efficiency, corrosion-resistant ventilation unit designed for large-scale industrial cooling and air exchange. Constructed from fiberglass composite material, it is ideal for factories, warehouses, offices, greenhouses, and livestock farms, offering long-lasting performance and energy savings.
FJS-II Model Features
Material & Structural Properties
· The fan body is constructed from fiberglass composite material, offering excellent corrosion resistance and anti-aging properties.
· The square design with automatic louvers ensures weatherproof operation and prevents backdraft.
· High-efficiency impeller design delivers large airflow with low power consumption and noise.
· Compact structure for easy installation in walls or window openings.
Core Advantages
· Large Airflow & Long Throw: Optimized impeller design provides high-volume airflow with extended reach, making it ideal for large spaces.
· Low Noise & Energy Efficient: High-efficiency motor and impeller design deliver powerful ventilation with minimal noise and power consumption.
· Weatherproof & Durable: The fiberglass construction and automatic louvers ensure reliable operation in all weather conditions.
· Easy Installation: The compact square design can be easily mounted in walls or window openings.
Transport Medium Restrictions
The conveyed gas must not contain sticky substances. The concentration of dust and hard particles must not exceed 150mg/m³. The gas temperature must be ≤60°C, and the relative humidity can be up to 100%.
Model Selection
The series includes models from 660 to 1600, with power ranging from 0.37kW to 1.5kW and airflow rates from 12,000 to 50,000 m³/h.
| Model | Power(kW) | Air Flow(m³/h) | Outer Dimensions(A×L×H, mm) | Inner Dimensions(mm) | Voltage/Frequency | Noise(dB) | Weight(kg) |
|---|---|---|---|---|---|---|---|
| FJS-II-660 | 0.37 | 12,000~15,000 | 660×660×350 | 580×580×350 | 380V/50Hz | ≤70 | 30 |
| FJS-II-800 | 0.55 | 15,000~20,000 | 800×800×350 | 720×720×350 | 380V/50Hz | ≤70 | 30 |
| FJS-II-980 | 0.55 | 25,000~30,000 | 980×980×430 | 900×900×430 | 380V/50Hz | ≤70 | 40 |
| FJS-II-1140 | 0.55 | 25,000~30,000 | 1140×1140×430 | 1060×1060×430 | 380V/50Hz | ≤70 | 45 |
| FJS-II-1300 | 0.75 | 38,000~43,000 | 1300×1300×430 | 1220×1220×430 | 380V/50Hz | ≤70 | 50 |
| FJS-II-1460 | 1.1 | 40,000~45,000 | 1460×1460×430 | 1380×1380×430 | 380V/50Hz | ≤70 | 70 |
| FJS-II-1600 | 1.5 | 45,000~50,000 | 1600×1600×400 | 1520×1520×400 | 380V/50Hz | ≤70 | 90 |
A1: It is designed for large-scale ventilation and cooling in industrial facilities, warehouses, greenhouses, and livestock farms.
A2: The fan creates negative pressure inside the building, drawing in fresh air from openings, which provides effective cooling and air exchange.
A3: The fiberglass composite material provides excellent corrosion resistance and anti-aging properties, making it ideal for humid or corrosive environments.
A4: It has minimal maintenance requirements, with a simple design and easy access for cleaning the impeller and louvers.
A5: Yes, the weatherproof fiberglass construction and automatic louvers allow it to operate in high humidity and rain.
A6: The maximum gas temperature is 60°C, and it can operate in high humidity environments up to 100% relative humidity.
A7: Yes, it is designed for 24/7 continuous operation with low noise and vibration.
A8: Select based on your required airflow (m³/h) and the size of the space. Our technical team can help you choose the best model based on your specific application.
A9: Yes, the compact square design is ideal for installation in standard wall or window openings.
A10: Each unit includes a detailed installation and operation manual, and we offer full after-sales technical support.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.