ATEX fumes and particles
Responsible companies ensure that fumes and dusts from manufacturing processes are removed from the workplace to protect workers from illness. This is because most types of fume and dust are among the most common causes of respiratory diseases among workers in the industry.
When the environment in which the extraction takes place has a risk of explosion the design of the extraction system has to live up to the ATEX regulation.
The company having the extraction system installed has to asses, whether there is a risk of an explosion in connection with their production as a result of ignition of an atmosphere, consisting of air mixed with flammable gases, vapors, fluids, mist/aerosols or flammable dust mists. If the answer is yes, the risk must be assessed as the foundation of a classification of the area(s) in danger of explosion.
The company can make this assessment themselves, or take advantage of a specialized advisor to do this for them. Sometimes the assessment can be made together with the local fire-fighting authorities.
The ATEX zones are defined according to the substance in the airflow and the risk level.
For gasses the zones are defined as Zones 0, 1, and 2 of which the zone 0 is the strictest. The same way the zones for dust are defined as zones 20, 21, and 22 with zone 20 as the strictest. Read more about the zones below.
Geovent offers explosion proof fans, filters, extraction arms, high vacuum systems and other solutions in compliance with the ATEX-directive. The necessary documentation is supplied together with the Geovent ATEX-products.
Geovent has been working with the ATEX-directive since its introduction in 2003, and we will be happy to assist you with your ATEX project.
This table suggests which amount of air you should use,
depending on the application.
|Process||Air flow per outlet
|Hose dimension [mm]||Air velocity in duct on unfiltered side [m/s]
||Suitable Geovent products|
|Grinding dust||150||80||20 – 25||HVUX, ASX and Explosion retention valve|
|Flamable powder||1000||160||10 – 15||ASX, GFX2 and MEX|
|Flamable fumes||1000||200||10 – 15||PERMA, ASX, MEX and MSX|
Why choose Geovent?
Our company has existed for more than 50 years and has a
passion for extraction and filtration technology.
A short video
Of an ATEX explosion
The video shows an explosion at a thermal power plant.
The explosion is caused by a mixture of air, coal and dust being ignited by a spark produced during maintenance of the equipment in the building.
Below you will find some of our well-known and recognised ATEX products.
Look them through or visit our website to get an overview of our entire range.
ATEX Extraction fan. Corrosion resistant. Energy saving. Airflow: 10 to 3200 m³/h. Pressure: 10 to 1800 Pa
ATEX extraction arm. Also available in stainless steel. With external carrying arm. Dim.: ø80 to 200. Length: 2 to 9 m.
Industrial ATEX filter with compressed air cleaning. Wide range of applications. Airflow up to 28800 m³/h.
ATEX high vacuum unit for dust applications. Various options available.
ATEX Extraction fan. Corrosion resistant. Energy saving. Airflow: 10 to 18000 m³/h. Pressure: 10 to 4500 Pa
PERMA arm ATEX / ESD is used in areas with risk of explosive gases / dust (ATEX) as well as static electricity.
Explosion retention valve
ø100 to ø600
Extraction ATEX fan. Corrosion resistant – made of polypropylene. Airflow: 30 to 6.720 m³/h. Pressure: 40 to 1700 Pa
We serve large and small customers throughout the World and offer you
the opportunity to get in touch with them and learn from their experience in working with us.
"It's perfect to get ideas for solutions on Geovent's website and get the final advice from a competent sales team"
"Geovent's products work as expected and their delivery is always fast and punctual"
EXTRACTING ATEX FUMES AND FLAMMABLE DUST
WHAT IS ATEX?
The objective of ATEX is to secure uniform guidelines for the whole European Union, so that the risk of explosion and subsequent personal injury as well as damage to the machinery is minimized.
Primarily, ATEX is relevant to companies handling potentially explosive concentrations of dust from wood, aluminium, plastic, flour, sugar or other organic materials, as well as fumes and vapours from petrol, acetone and batteries.
RULES AND LEGISLATION
A common EU directive, 2014/34/EU, also known as ATEX, is attempting to reduce the risk in connection with explosive environments in the industry.
All ATEX-products from Geovent are manufactured in compliance with the directive 2014/34/EU.
It is the responsibility of the individual employer to obtain zone-classifications in the company concerned, and often this is carried out in cooperation with the local fire-fighting authorities.
For further information regarding ATEX, please also refer to the AT-instruction C.0.9 concerning dust explosions.
European companies have to asses, whether there is a risk of explosion in connection with their production as a result of ignition of an atmosphere, consisting of air mixed with flammable gases, vapours, fluids, mist/aerosols or flammable dust mists. If the answer is yes, the risk must be assessed as the foundation of a classification of the area(s) in danger of explosion. In addition to this, the company must take precautions in order to avoid explosions and to draw up documentation.
The central principle is to divide the company into zones on basis of the risk of explosion and its consequences. In this connection, it is necessary both to consider the type and the volume of leak, ventilation, safety systems and the potential ignition sources, as for instance electrostatic charge, electrical installations and mechanically generated sparks. The assessment is to apply to existing equipment as well as to new acquisitions of machinery and equipment. A complete instruction manual can be supplied with a Geovent ATEX product as well as approved certifications.
|Zone 0||Area, where constantly, frequently or for a longer period of time there is an explosive atmosphere, consisting of a mixture of air and flammable gas, vapours or mist||Category 1, G (gas)|
|Zone 1||Area, where an explosive mixture of air and flammable gas, vapour or mist may occasionally occur, during normal operation||Category 1 or 2, G (gas)||MSX / MEX fan / ASX|
|Zone 2||Area, where during normal operation an explosive atmosphere, consistingof a mixture of air with flammable gas, vapour or mist probably does not occur However, if it occurs, it will only be for a short period of time||Category 1, 2 or 3, G (gas)||MSX / MEX fan / ASX|
|Zone 20||Area, where constantly, frequently or for a longer period of time there may be an explosive atmosphere, consisting of a cloud of flammable dust and air||Category 1, D (dust)||GFX Filters|
|Zone 21||Area, where occasionally during normal operation an explosive atmosphere consisting of a cloud of flammable dust and air may occur||Category 1 or 2 D (dust)||GFX Filters, MSX / MEX fan, HVUX / ASX|
|Zone 22||Area, where during normal operation an explosive atmosphere, consisting of a cloud of flammable dust and air may most probably not occur, and should it occur anyhow, it will only be for a short period of time||Category 1, 2 or 3, D (dust)||GFX Filters, MSX / MEX fan, HVUX / ASX|
Frequently asked questions
Below you will find answers to some of the most common questions which we receive from customers.
If you have other questions, please do not hesitate to contact us.
The term “ATEX” applies to atmospheres that are potentially explosive due to the presence of dusts vapours or gases that are likely to ignite..
There are two Directives from the European Commission describing how to deal with ATEX.
- ATEX Directive 2014/34/EU is concerned with products that may be supplied for use in potentially explosive atmospheres.
- ATEX Directive1999/92/ECdeals with the precautions to be taken in workplaces where explosive atmospheres might be present due to flammable dusts vapours or gases (or mixtures of these).
The Regulations apply at most workplaces where flammable substances are stored or used, for example, factories where flammable liquids are present or where flammable dusts are produced in the process.
Examples are factories with that use spray paint and varnishes, milk drying and flour production.
The word ex-proof comes from the combination of the words “explosion proof”. It literally means explosion-proof. Ex-proof equipment is special equipment used in potentially explosive atmospheres