RAFAVENT HATCH FAN SERIES
Hatch Fans
High-volume axial fan units integrated with a wall or roof hatch/shutter arrangement for industrial and agricultural ventilation.
Preliminary engineering selection
Calculated guidance only. Final hatch geometry, actuator, guards, weather protection, duty and any smoke/fire classification require project-specific approval and evidence.
| Model | Opening (mm) | Airflow (m³/h) | Static pressure (Pa) | Motor (kW) |
|---|---|---|---|---|
| RF-HF-800 | 800 | 28,000 | 160 | 5.5–7.5 |
| RF-HF-1000 | 1000 | 45,000 | 180 | 7.5–11 |
| RF-HF-1400 | 1400 | 90,000 | 150 | 15–18.5 |
RF-HF-800 — Calculated Q–Ps curve
| Q (m³/h) | Ps (Pa) |
|---|---|
| 0 | 160 |
| 7000 | 150 |
| 14000 | 122 |
| 21000 | 69 |
| 28000 | 0 |
RF-HF-1000 — Calculated Q–Ps curve
| Q (m³/h) | Ps (Pa) |
|---|---|
| 0 | 180 |
| 11250 | 169 |
| 22500 | 137 |
| 33750 | 77 |
| 45000 | 0 |
RF-HF-1400 — Calculated Q–Ps curve
| Q (m³/h) | Ps (Pa) |
|---|---|
| 0 | 150 |
| 22500 | 141 |
| 45000 | 114 |
| 67500 | 65 |
| 90000 | 0 |
Hatch and safety definition
| Item | Project definition |
|---|---|
| Hatch / shutter | Opening direction, free area, fail position |
| Actuator | Voltage, torque, end switches, manual release |
| Guards | Inlet and discharge protection |
| Weather protection | Rain, wind and corrosion environment |
Control and verification
| State | Required verification |
|---|---|
| Start command | Fan and hatch interlock |
| Open feedback | Fan enabled only at safe opening |
| Stop / fault | Defined safe position and alarm |
| Commissioning | Airflow, pressure, current and opening time |
Information required before selection
- Airflow and static pressure
- Wall or roof opening and available depth
- Supply/extract direction and weather exposure
- Power, actuator and control sequence
- Sound, guards, corrosion and certification requirements
Performance Curve
The published table defines three preliminary selection points. A final P–Q curve is released only after the hatch free area, opening angle, guards, weather protection and system resistance are confirmed.
Project-specific engineering status: The chart shows published duty points, not certified fan curves. Final performance documentation is configuration-specific.
Dimensions
Published clear-opening sizes are 800, 1000 and 1400 mm. Final external frame, hatch depth, actuator envelope, fixing centres and service clearances are confirmed on the approved GA drawing.
Construction & Materials
Fan casing, hatch or shutter, protective guards, weather protection, actuator interfaces, coating and corrosion class are selected for the installation environment and recorded in the material schedule.
Drive Arrangement
Motor power is stated in the preliminary model table. Direct, belt or other drive arrangement is not claimed universally and is confirmed for the selected fan–hatch assembly.
Request an engineering selection
Send the duty point, installation arrangement, operating conditions and available drawings for a project-specific selection.
Send project requirements