Explosion Proof Duct Fans
Duct Fans with Backward-Curved Impeller, Direct-Drive Motor and Galvanized Body
Explosion proof duct fans are duct-type fan solutions used for exhaust, fresh air, process ventilation and applications with an explosive atmosphere risk in industrial facilities. Moreover, each unit is evaluated according to the specific project conditions.
Thanks to the galvanized steel body, backward-curved impeller, direct-drive external-rotor motor, self-flanged suction and discharge ports and a service cover, these fans make installation, maintenance and operation easy. As a result, they also fit into tight mechanical rooms.
Galvanized Steel Body
The duct fan body is manufactured from galvanized steel sheet. Therefore, it offers the strength required for industrial duct applications.
Backward-Curved Impeller
The backward-curved, low-solidity impeller structure delivers balanced air performance against duct resistance.
Easy Service
In addition, an openable service cover provides access for impeller and motor maintenance.
What Is an Explosion Proof Duct Fan?
An explosion proof duct fan is a compact fan solution used in industrial ventilation applications where air must be drawn from or pushed into a duct line. In areas with an explosive atmosphere risk, the fan must be selected according to the motor type, electrical connection, accessories, hazardous area class and the character of the process air.
Because the fan body has self-flanged suction and discharge ports, the duct connection becomes simple. Furthermore, mounting at different angles provides flexibility in narrow mechanical spaces and along different duct routes. For dust-laden explosive atmospheres, our ATEX dust collection systems can be combined with these fans.
Explosion Proof Duct Fans Working Principle
Duct Air Intake
First, the fan draws dirty air, fresh air or process air from the duct line through its suction port.
Radial Air Movement
Next, the backward-curved, low-solidity impeller moves the air along the duct.
Controlled Speed
Then, the fan speed can be adjusted with a speed switch, 0-10V control or an optional pressure controller.
Safe Ventilation
Finally, in explosion proof applications the motor and electrical equipment must be selected according to the site Zone class.
Technical Specifications and Accessories Table
| Title | Description |
|---|---|
| Product type | Duct-type fan / fan solution selectable for explosion proof applications |
| Body material | Galvanized steel body |
| Impeller structure | Backward-curved, low-solidity impeller |
| Motor structure | Direct-drive, external-rotor motor |
| Connection type | Self-flanged suction and discharge ports |
| Motor protection class | IP44 |
| Electrical junction box | IP67 protection class |
| Service access | Openable service cover for impeller and motor maintenance |
| Mounting flexibility | Can be mounted at different angles |
| Control options | Speed switch or 0-10V control |
| Optional pressure control | The pressure controller adjusts motor speed automatically to maintain the desired pressure value |
| VSC | Speed switch |
| FLR | Filter box |
| SILENT | Silencer |
| EBD | Rectangular flexible connection |
| NRK | Rectangular one-way damper |
Key Features
Thanks to the self-flanged suction and discharge ports, the duct connection can be made in a practical way.
An openable service cover provides access for impeller and motor maintenance.
It can be operated with a speed switch, 0-10V control or optional pressure control.
With mounting at different angles, it adapts to the duct route.
Points to Consider in Explosion Proof Applications
Application Areas
Get Information About Explosion Proof Duct Fans
The selection of an explosion proof duct fan must be made according to the airflow, duct pressure, motor power, control method, filter / silencer need, hazardous area class and the character of the conveyed air.
You can request a technical evaluation for duct fans, explosion proof ventilation fans and industrial exhaust systems. You can also review our other industrial fans for different applications.
