Beschrijving
ATEX axial roof fan
The VN Roof AH ATEX is an axial roof fan designed to extract air and clean gases from industrial environments where potentially explosive atmospheres may occur. It is suitable for applications where explosion protection is required due to the presence of flammable gases, vapours or combustible dust.
Installed directly on the roof, the fan provides an effective way to discharge air from a building or industrial space to the outside. Its roof-mounted design makes it particularly suitable for extraction applications where a conventional duct-mounted fan is not required.
When do you need an ATEX roof fan?
An ATEX roof fan is used when air needs to be extracted from an area with a potential explosion risk and roof installation is preferred.
Typical applications for the VN Roof AH ATEX include:
- Battery charging rooms and battery storage areas
- Chemical and petrochemical facilities
- Laboratories
- Industrial production areas where potentially explosive gases or dust may be present
The fan is designed for air extraction. Its ATEX classification and configuration must match the specific hazardous area and operating conditions.
Design and construction
The VN Roof AH ATEX combines an axial impeller with a roof-mounted housing and an explosion-protected motor. Its components are selected to meet the requirements of operation in potentially explosive atmospheres.
Key design features include:
- Steel fan housing with a circular configuration.
- Metal weather-resistant top cover.
- Protective guard on the discharge side.
- Axial impeller with an aerodynamic blade profile and adjustable blade pitch.
- Antistatic plastic impeller blades with an aluminium hub.
- ATEX-certified explosion-protected motor.
- Direct drive.
The motor is supplied with IP55 protection and class F insulation. Motor specifications depend on the selected configuration.
Technical specifications VN Roof AH ATEX
- Type: Axial ATEX roof fan
- Airflow capacity: up to 26,000 m³/h
- Impeller diameter: 450 to 1,000 mm
- Operating temperature: -20°C to +40°C
- Medium: Clean gases, free from dust, abrasive particles and corrosive substances
- Motor: ATEX explosion-protected asynchronous motor
- Motor protection rating: IP55
- Insulation class: F
- Power supply: Depending on motor configuration
- ATEX versions: Gas (G) or dust (D), category 2 or 3
- The maximum airflow depends on the selected model, motor speed and system resistance. Selecting the right fan therefore requires more than just matching the required airflow. The operating pressure and application conditions must also be taken into account.
Available versions and accessories
The VN Roof AH ATEX is available in several sizes and motor configurations. Depending on the installation requirements, various accessories can be supplied, including:
- Gravity-operated backdraft shutter for the discharge side, installed in a non-hazardous area.
- Additional protective guard on the inlet side.
- Counter flange or mounting base for roof installation.
Alternative material configurations are also available on request, including stainless steel and aluminium housing options.
Selecting the right ATEX roof fan
Choosing the right ATEX roof fan requires careful consideration of the required airflow, operating pressure and characteristics of the potentially explosive atmosphere. The ATEX category, gas or dust classification and motor specifications must all be suitable for the intended application.
At Ventinet, we look beyond the fan itself. We consider the technical requirements and operating conditions to help you select a configuration that matches your application. If you are unsure which version you need, our team will be happy to think along with you.
Dit product maakt deel uit van ons assortiment ATEX fans, ATEX axial fans en ATEX roof fans.
