DVN & DVNS Roof Mounted Centrifugal Fans
Available in Standard or ATEX Versions
Manufacturing Features:
Centrifugal fan with backward curved impellers made of aluminium.
Solid weatherproof casing.
Flow rates up to 36,000 m³/h.
Size: 310 - 900 mm (impeller diameter).
Suitable for higher conveying temperatures.
IEC standard motors as drive.
Different models.
Vertical outlet.
Easy to install.
Offering High Performance Impellers from Sizes 310mm to 900mm
DVN & DVNS centrifugal roof fans feature efficiency-optimised high performance impellers, available from size 310mm to 900mm. The impellers together with the impeller hub are dynamically balanced on two levels with the rotor according to quality level G 2,5 / G 6,3 as per DIN ISO 21940-11.
DVNF/DVN: The casing consists of seawater-resistant aluminium and a base frame with integrated inlet cone.
•up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
•from size 560: Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating
•DVNFS/DVNS: Casing with integrated sound insulation (S) ; base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating.
•up to size 500: Base frame with integrated inlet cone made of galvanised sheet steel
•from size 560: Base frame with integrated inlet cone made of galvanised sheet steel and additional plastic coating
•Warehouse ventilation
•Supermarkets ventilation
•Factory ventilation
•Swimming pools ventilation
•Gymnasium ventilation
•Garage ventilation
•Agricultural ventilation
•Stable ventilation
•Farm ventilation
•Commercial building ventilation
•Industrial building ventilation
•Residential building ventilation
•ATEX versions 
Technical Data
DVN & DVNS models are all available in sound attenuating versions with integrated sound insulation. The fans are driven by IEC three phase motors and up to size 450 are suitable for voltage control. From size 500 the fans are controllable with a frequency converter.
| Fan Type | Voltage (V) |
Frequency (Hz) |
Input Power (kW) |
Rated Current (A) |
Speed (rpm) |
Max Temp (°C) |
IP Rating (IP) |
|---|---|---|---|---|---|---|---|
| GKHM 355-CIG.102.5HF IE Gen3 (IE5) | 3~ 380-480 | 50 / 60 | 2.33 | 3.7 at 400V | 3120 | 40 | IP54 |
| GKHM 400-CIG.114.6FF IE Gen3 (IE5) | 3~ 380-480 | 50 / 60 | 4.48 | 7 at 400V | 3170 | 40 | IP54 |
| GKHM 450-CIG.128.6IF IE Gen3 (IE4) | 3~ 380-480 | 50 / 60 | 5.9 | 9.05 at 400V | 2950 | 40 | IP54 |
| GKHM 500-CIG.143.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 7.48 | 11.4 at 400V | 2625 | 40 | IP54 |
| GKHM 560-CIG.160.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 6.85 | 10.7 at 400V | 2125 | 40 | IP54 |
| GKHM 630-CIG.180.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 5.1 | 7.88 at 400V | 1580 | 40 | IP54 |