The HLU roof fans are designed for vertical intake and installation outside the building. With the appropriate accessories, they can also be installed horizontally. They are especially suitable for use in buildings without a ventilation center and are used in laboratories (digestories), schools and research facilities, among others. The exhaust air is blown out vertically upwards, so that the deposit of aggressive substances on the roof is minimized. The internal motor is separated from the air flow and therefore does not come into contact with the aggressive conveying medium. Rainwater falling into the exhaust opening is drained away at the bottom of the housing, which prevents water from penetrating the pipe connected on the suction side. For use in potentially explosive areas, we supply the HF roof fans in explosion-proof design according to ATEX for Zones 2 and 1.
Roof fans
HF D 15/17
Application
- Can be used in all applications with small and medium air volumes
- ideal for extracting digestors in buildings without ventilation centres
- optionally suitable for installation and extraction from ATEX Zone 1 and 2
- also available with EC motor
characteristics
- Volume flow from 50 – 3,500 m³/h
- at a maximum pressure difference of 1,400 Pa
- Available in 6 nominal sizes from 110 – 315 mm suction diameter
| Volume flow | 50 – 3,500 m³/h |
|---|---|
| maximum pressure difference | 1,400 Pa |
| Nominal diameters | 6 nominal diameters from 110 – 315 mm |
| operating temperatur | 0 – 40°C |
| Housing material | UV-resistant PEs, PE-el |
| Impeller material | PPs, PPs-el |
| drive | Direct drive |
| Atex | optionally suitable for installation and extraction from ATEX Zone 2 |
| execution | Standard with repair switch or Ex terminal box |
| Connection options | flange |
Advantages:
corrosion-resistant
weatherproof
safe drainage of rainwater
compact design
easy mounting on flange
extensive range of accessories
Engine outside the airflow
Use of different motors (Ex-motors) possible
Roof fans
HF D16
Application
- Can be used in all applications with medium air volumes
- ideal for extracting digestors in buildings without ventilation centres
- optionally suitable for installation and extraction from ATEX Zone 2 and 1
characteristics
- Volume flow from 500 to 8,000 m³/h
- at a maximum pressure difference of 1,400 Pa
- Available in 3 nominal widths from 315 to 400 mm
| Volume flow | 500 – 8,000 m³/h |
|---|---|
| maximum pressure difference | 1,400 Pa |
| Nominal diameters | 3 nominal diameters from 315 to 400 mm |
| operating temperatur | 0 – 40 °C |
| Housing material | PPs, PPs-el, PVC |
| Impeller material | PPs |
| drive | Direct drive |
| Atex | Optionally suitable for installation and extraction from ATEX Zone 2 or ATEX Zone 1 in electrically conductive version |
| execution | Standard with repair switch or Ex terminal box, shaft gap with seal |
| Connection options | flange |
Advantages:
- corrosion-resistant
- weatherproof
- safe drainage of rainwater
- compact design
- easy mounting on flange
- extensive range of accessories
- Engine outside the airflow
- Use of different motors (Ex-motors) possible
Roof fans
HF D13
Application
- Can be used in all applications with large air volumes
- ideal for collective exhaust air and direct hall exhaust air without duct systems
- optionally suitable for installation and extraction from ATEX Zone 2 and 1
characteristics
- Volume flow of 4,000 – 40,000 m³/h
- at a maximum pressure difference of 1,000 Pa
- Available in 5 nominal sizes from 500 – 1,000 mm suction diameter
| Volume flow | 4,000 – 40,000 m³/h |
|---|---|
| maximum pressure difference | 1,000 Pa |
| Nominal diameters | 5 nominal diameters from 500 – 1,000 mm |
| operating temperatur | 0 – 40°C |
| Housing material | PP, PPs, PVC |
| Impeller material | PPs |
| drive | Direct drive |
| Atex | Optionally suitable for installation and extraction from ATEX Zone 2 or ATEX Zone 1 in electrically conductive version |
| execution | Standard with repair switch or Ex terminal box, shaft gap reduced to minimum gap with felt ring seal |
| Connection options | flange |
Advantages:
corrosion-resistant
weatherproof
safe drainage of rainwater
compact design
easy mounting on flange
extensive range of accessories
Engine outside the airflow
Use of different motors (Ex-motors) possible