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DH Roof Mounted Centrifugal Fans

DH Roof Mounted Centrifugal Fans

Available in Standard or ATEX Versions

Manufacturing Features:
Centrifugal fan made of seawater-resistant aluminium.
Base frame with integrated inlet cone made of galvanised steel sheet.
Backward curved impellers made of plastic.
Flow rates up to 15,000 m³/h.
Size: 190 - 630 mm (impeller diameter).
Horizontal outlet.
Solid weatherproof casing.
Easy to install.

Centrifugal roof fans with horizontal discharge are

Designed to Extract Clean or Low Polluted Air

The DH series of roof fans with horizontal discharge are suitable on shed roofs, saddle roofs, flat roofs and pent roofs. The DH/DHE models are best suited to clean, less polluted air. For more contaminated air, see the DV range of roof mounted fans.

Available with Impeller Sizes 190mm to 630mm

DH centrifugal roof fans are fitted with backward curved impellers made of plastic, available in sizes 190mm to 630mm and can provide airflows up to 15,000 m³/h.

Available Fan Types

DH: Backward curved impellers made of plastic

DHE: Efficiency optimised and sound optimised backward curved impellers from the e series made of plastic

Suitable Applications

•Warehouse ventilation
•Supermarket 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 versionsATEX rated fans

Technical Data

The DH series can be paired with AC, EC or IEC motor models, all available in sound attenuating versions. AC products are ERP 2016 compliant and the EC models are ERP 2018 compliant. IEC Motor Variations (DVWN) can be operated up to 120 °C as the motor is outside of the airstream. 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. The motor carrier cage is a plastic coated round wheel and has been created with bird and contact protection. 

Fan Type Voltage
Power (kW)
Current (A)
Max Temp
IP Rating
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