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High Airflow Rectangular Duct Vent Fan - Reliable China Suppliers & Factory for Efficient Air Control

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Product Operating Conditions

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Ensure optimal performance with our product designed for various operating conditions. The operating temperature ranges from -20 to 40℃, making it suitable for diverse environments.

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Humidity levels should be maintained at less than 90% to ensure reliable operation.

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This product is built to function effectively with air medium, with dust content not exceeding 100 mg/m³.

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Power supply specifications include three-phase 308V/50Hz or single-phase 220V/50Hz for select models, catering to the needs of various applications.

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As a leading factory and supplier in China, we are committed to delivering high-quality products that meet the stringent demands of our customers.

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    Product Details

    📦 Product Overview

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    1. The GDF series of centrifugal duct fans feature either forward-curved or backward-curved multi-blade centrifugal impellers, with single-sided air intake. The fans are designed for horizontal air intake and exhaust, and the square air inlets and outlets can be directly connected to the air ducts. The fan motors are specifically designed for air conditioning systems, and the entire unit is characterized by low noise, smooth operation, and long service life.
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    2. The fans are available in nineteen different sizes based on the diameter, ranging from 180mm to 560mm. The series offers air volumes from 160 to 9100 cubic meters per hour and total pressures from 73 to 570 Pascals.
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    3. To meet the noise requirements of different environments, the fans are available in two types:
    Standard type: All components are made of galvanized steel sheets formed by seaming or riveting.
    Silencing type: The fan part is made of galvanized steel sheets formed by seaming or riveting, and the casing is lined with sound-absorbing cotton.
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    4. The fans can be equipped with variable frequency motors and controllers to achieve stepless speed regulation. It is recommended to lock the frequency adjustment range between 25Hz and 50Hz. To meet the needs of explosion-proof environments, the fans can be made into explosion-proof models with an explosion-proof grade of EXdIIBT4.

    🏢 Product Application

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    Fans can be widely used for ventilation and air exchange in hotels, restaurants, conference rooms, office buildings, public toilets, shopping malls, etc.
    Frequently Asked Questions
    Q1: What are the available sizes for the GDF series centrifugal duct fans? A: The GDF series is available in 19 different sizes based on diameter, ranging from 180mm to 560mm, to suit various installation requirements.
    Q2: Can these fans be used in areas where noise reduction is critical? A: Yes, we offer a "Silencing type" which features a casing lined with sound-absorbing cotton specifically designed for low-noise environments.
    Q3: Are the GDF series fans suitable for hazardous or explosive environments? A: Yes, we provide explosion-proof models with a grade of EXdIIBT4 to ensure safety in specialized industrial environments.
    Q4: What is the recommended frequency range for variable speed control? A: When equipped with variable frequency motors, it is recommended to maintain the adjustment range between 25Hz and 50Hz for optimal performance.
    Q5: What is the maximum air volume these fans can handle? A: The series offers a wide performance range, with air volumes ranging from 160 m³/h up to 9100 m³/h.
    Q6: How are these fans connected to existing ventilation systems? A: The fans feature square air inlets and outlets designed for direct connection to standard rectangular air ducts, allowing for easy horizontal installation.

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