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ISQ Volute-free Centrifugal Fan Unit
- Airflow range: 780–42,000 m³/h
- Static pressure range: 45–750 Pa
- Drive type: Direct drive, belt drive
- Installation type: Floor-mounted, suspended, or ducted
- Applications: Duct-based supply and exhaust, silent fan cabinets, fire smoke exhaust, explosion-proof exhaust, etc.
- 1. Volute-free design for more uniform airflow Features a volute-free, straight-discharge structure; air is discharged evenly from around the impeller, minimizing localized airflow concentration and enhancing overall supply performance—ideal for multi-directional airflow systems.
- 2. High efficiency, energy savings, and stable airflow output Equipped with a high-efficiency centrifugal impeller and a premium-quality motor; delivers ample airflow and static pressure while effectively reducing energy consumption to meet modern building energy-efficiency standards.
- 3. Low-noise operation for a more comfortable environment The impeller undergoes high-precision dynamic balancing; combined with a sound-attenuating cabinet design, this effectively minimizes operating noise and vibration, making it suitable for environments requiring quiet operation.
Description
The ISQ series consists of centrifugal fan units featuring a square, scroll-free (volute-free) design. Unlike traditional centrifugal fans that utilize a spiral scroll housing, the ISQ series eliminates this complex structure in favor of a compact cabinet design that integrates a high-efficiency impeller and motor. This configuration results in a smaller, lighter unit with exceptional installation flexibility, making it ideal for locations with space constraints or strict noise control requirements.
The ISQ scroll-free centrifugal fan unit is an integrated ventilation solution combining a high-efficiency centrifugal fan, a motor, and a sound-attenuating cabinet. Its scroll-free, straight-through airflow design offers advantages such as a compact footprint, ease of installation, stable operation, and simple maintenance. Compared to traditional scroll-type centrifugal fans, the scroll-free structure reduces internal airflow resistance and enables uniform air discharge in multiple directions, making it suitable for ventilation systems that demand high airflow uniformity.
The unit utilizes premium centrifugal impellers and high-efficiency, low-noise motors. The impellers undergo precision dynamic balancing to ensure smooth operation with minimal vibration and noise, facilitating long-term stability. The cabinet is constructed from high-quality galvanized or powder-coated steel and can be lined with sound-insulating materials to effectively reduce operating noise; the materials also provide excellent corrosion resistance and ensure a long service life.
ISQ scroll-free centrifugal fan units are widely used in office buildings, hotels, shopping malls, hospitals, schools, industrial plants, underground parking garages, cleanrooms, HVAC systems, and various commercial ventilation projects. Customizable options—including airflow volume, static pressure, motor power, control methods, and installation configurations—are available to meet specific client needs, providing efficient, energy-saving, and safe air handling solutions for modern architecture.