GRE & GRF Forward Curved Centrifugal Fans
Available with AC or EC Motors
GRE and GRF forward curved fans are designed to help OEMs save space and offer convenient speed control. Featuring forward curved impellers and scroll housing, available in galvanised steel or plastic. The Ecofit fan series can provide airflows from 170m3/h up to 1000m3/h. The maximum achievable pressure rate is from 160Pa up to 900Pa. Impellers are available from sizes 108mm up to 200mm. Contact us to discuss your requirements, we’ll carefully select the best fan model to meet your needs.
Designed for Pressurising or Evacuating Air in Confined Spaces
The GRE and GRF series of single inlet forward curved fans, featuring an external rotor motor, are compact in design and offer the ideal solution for pressurising or evacuating air in confined spaces such as furnaces, fan coil units, HVAC or combustion systems.
GRE: Single inlet centrifugal fan, IP44
GRF: Single inlet centrifugal fan, High Pressure, double shaft, IP54
GRE and GRF forward curved fans are suitable for:
•Heat recovery systems
•Fan coil units
•School MVHR
•Air curtains
•General HVAC
•Air conditioning
•Air handling units
•Compressors
•Industrial buildings
•Renewable energy sources, e.g. wind turbines
•Ventilated workbenches
•Cooling machines and parts
•Clean air transport
•Extraction and injection of air
•Air filtration
•Spray containment
•Fume control
•Inflatable products
•Attenuated fan boxes
•Solarium equipment
•Conveyor cooling
•Electronic enclosure ventilation
•Rail HVAC systems
•Combustion systems & processes
•Residual waste incineration furnaces
•Medical waste combustion
•Mobile incineration units
•Waste wood combustion
•Residential air quality
•Air extraction
•Blowing
•Energy recovery
•Dual flow ventilation for private homes
•Controlled ventilation
•Controlled insufflation ventilation
AC single phase motor
•Forward curved impeller made of galvanised steel or plastic
•Impeller diameter of 108 up to 200mm
•AC single phase capacitor external rotor motor 230V50/60Hz and 120V50/60Hz
•Plastic or black painted steel scroll
•Maximum airflow of 200 up to 750m3/h, maximum pressure of 160 up to 900Pa
•CE, UL, CCC mark
•Options: special voltage, 3~ motor
EC Motor
•Forward curved impeller made of galvanised steel
•Impeller diameter of 120 up to 180mm
•EC external rotor motor 230V50/60Hz and 120V50/60Hz
•Integrated electronic
•Black painted steel scroll
•Maximum airflow of 170 up to 1000m3/h, maximum pressure of 300 up to 800Pa
•CE, UL mark
•Options: impeller dimension, alarm signal
Technical Data
The GRE and GRF series of forward curved fans are paired with an external rotor motor; 230V50/60Hz and 120V50/60Hz.
| 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 |