The Comefri NTHZ 400 T2 is a high-efficiency, double inlet centrifugal fan with backward-curved blades, engineered for demanding commercial and industrial ventilation and air handling. Its 400mm steel impeller features 11 welded, backward-curved blades paired with Comefri’s patented ForeFinger inlet cone technology, delivering very high efficiency and strong performance at medium-to-high pressures.
Built with a Pittsburgh-closure housing, trapezoidal cut-off and low-maintenance ball bearings, the NTHZ 400 T2 is a robust, reliable choice for larger air handling units and higher-duty ventilation systems. Performance data conforms to DIN 24166 Class 1, the fan is ErP 2015 compliant, and the NTHZ series is AMCA certified.
Supplied as a bare shaft fan for belt drive, it’s paired with a motor and pulley arrangement selected to your duty, giving full control over airflow and pressure. The “T2” designation denotes the fan’s rotation and discharge orientation — important to match when replacing an existing unit.
Ideal for: larger air handling units, industrial ventilation, and higher-efficiency, higher-pressure HVAC systems.
Features
- High-efficiency double inlet centrifugal fan, backward-curved blades
- 400mm steel impeller with 11 welded, backward-curved blades, painted
- Patented ForeFinger inlet cone for very high efficiency
- Pittsburgh-closure housing with trapezoidal cut-off
- Low-maintenance ball bearings
- Performance to DIN 24166 Class 1
- ErP 2015 compliant
- AMCA certified series
- Bare shaft, belt-drive configuration
- “T2” rotation/discharge orientation
What’s included
- NTHZ 400 T2 fan
- Outlet flange
- Outlet flexible connection
- Delivery to mainland UK
Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Comefri |
| Model | NTHZ 400 T2 |
| Fan type | Double inlet, backward-curved centrifugal |
| Impeller diameter | 400mm |
| Impeller | Steel, 11 backward-curved blades, welded and painted |
| Inlet | ForeFinger inlet cone (patented) |
| Housing | Pittsburgh closure, trapezoidal cut-off |
| Bearings | Low-maintenance ball bearing |
| Standards | DIN 24166 Class 1, ErP 2015 compliant, AMCA certified |
| Drive | Bare shaft (belt drive) |
| Rotation / discharge | T2 orientation |
| Airflow & pressure | Drive-dependent — selected to duty |
| Motor | Not included |




