When it comes to designing efficient HVAC systems, airflow, pressure, and noise levels all matter. In commercial and industrial buildings where space is tight and performance is non-negotiable, the Centrifugal In-line Rectangular Duct Fan stands out as a high-efficiency solution.
At Fan Movement, this fan series is trusted by consultants, engineers, and facility managers alike for its compact footprint and strong performance under pressure.
What Is a Centrifugal In-Line Rectangular Duct Fan?
Unlike axial fans, which move air along a straight path, centrifugal fans pull air into the center of a rotating impeller and push it outward at a 90-degree angle, increasing air pressure. This makes them ideal for long duct runs, complex duct shapes, or systems with multiple bends and resistance points.
When integrated into a rectangular duct system, these fans offer the additional advantage of direct duct-to-fan compatibility no need for transitions or flow adapters.
Key Features & Benefits
- High Static Pressure Capability: Perfect for overcoming resistance in long or complex duct networks.
- Compact Rectangular Housing: Designed to fit into tight mechanical spaces or ceiling voids.
- Low Sound Output: Equipped with acoustic insulation and low-vibration mounting to minimize noise.
- Backward Curved Centrifugal Impeller: Delivers stable airflow even in fluctuating operating conditions.
- Easy Access Panels: Simplifies maintenance for filters and motor inspection.
- EC Motor Options Available: High energy efficiency and compatibility with smart building systems.
Ideal Applications
These fans are frequently used in:
| Sector | Application Use Case |
| Commercial Offices | Ventilating meeting rooms and open-plan workspaces |
| Hospitals & Labs | Supplying filtered airflow through ducted systems |
| Schools & Colleges | Quiet ventilation in classrooms and lecture halls |
| Shopping Centres | Concealed airflow distribution in service corridors |
| Industrial Spaces | Extracting fumes or cooling high-temperature zones |
Why Choose a Rectangular Duct Solution?
- Space-Efficient: Perfect for shallow ceiling voids where round duct systems won’t fit.
- Easy Integration: Compatible with common ductwork dimensions and accessories.
- Aesthetic Flexibility: Enables clean ceiling designs without visible equipment.
Whether you’re retrofitting an existing HVAC system or specifying for a new build, rectangular centrifugal fans are the smart choice for architects and engineers who prioritize both performance and design integrity.
FAN MOVEMENT – Engineered for Excellence
At Fan Movement, we understand the engineering that powers healthy buildings. That’s why our centrifugal in-line rectangular fans are selected for performance, durability, and silent operation. Our products come with full technical support, CAD drawings, and specification sheets to assist consultants from design to installation.
“When airflow matters, design smart ventilate better.”
