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  2. DVN & DVNS Roof Mounted Centrifugal Fans

DVN & DVNS Roof Mounted Centrifugal Fans

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.

DVN & DVNS vertical discharge roof fans

Designed to Extract Clean or Dusty Air

The DVN & DVNS series of roof fans with vertical discharge are suitable for shed roofs, saddle roofs, flat roofs and pent roofs. The roof fans can handle dusty or contaminated air in industrial and commercial buildings. ATEX rated versions are available on request. For clean air roof extraction, see the DH range of roof fans.

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.

Available Fan Types

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

Alternative Roof Fan Ranges:

•CTH4 Roof Mounted Centrifugal Fans

•CTH3 Roof Mounted Centrifugal Fans

•DV Roof Mounted Centrifugal Fans

•DH Roof Mounted Centrifugal Fans

Suitable Applications

•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

Available on Request

•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