High Airflow Rectangular Duct Vent Fan - Reliable China Suppliers & Factory Solutions for Optimal Performance
Product Overview
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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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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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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.
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.
Advanced Control & Safety:
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
Fans can be widely used for ventilation and air exchange in hotels, restaurants, conference rooms, office buildings, public toilets, and shopping malls.
Frequently Asked Questions
What is the size range available for GDF series fans?
The GDF series offers nineteen different sizes based on diameter, ranging from 180mm to 560mm to suit various installation requirements.
What is the difference between the Standard and Silencing types?
The Standard type is constructed from galvanized steel sheets. The Silencing type includes the same galvanized construction but adds a casing lined with sound-absorbing cotton to minimize noise in sensitive environments.
Can the air volume and pressure be adjusted?
Yes, by using variable frequency motors and controllers, the fans can achieve stepless speed regulation. We recommend a frequency adjustment range of 25Hz to 50Hz.
Are these centrifugal duct fans suitable for hazardous environments?
Yes, we offer explosion-proof models specifically designed for such environments, with an explosion-proof grade of EXdIIBT4.
How are the fans connected to the ventilation system?
The fans are designed with square air inlets and outlets, allowing them to be directly and easily connected to standard air ducts for horizontal intake and exhaust.
What are the typical performance specs for this series?
The series covers an air volume range of 160 to 9100 m³/h and provides total pressures ranging from 73 to 570 Pascals.