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ATEX Fans

Looking for high-performance explosion proof and ATEX‑rated fans certified for Zones 1, 2, 21, and 22?

If you're looking for help selecting ATEX Fans that meet strict EU Directive 2014/34/EU requirements, and provide safe and reliable air movement in explosive gas and dust environments then stay with us. We're a UK fan supplier who are trusted by leading hazardous area engineers from industrial, chemical, and energy companies. We boast the UK's fastest lead times and competitive pricing on ATEX fans, coupled with technical expertise, and solutions tailored to your project. We pride ourselves on helping reduce the jargon while staying compliant and safe.

Get in touch however you like, and chat with a specialist who'll do the heavy lifting on selections, so you don't have to.

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We Exist to Help YOU to Select ATEX Fans that Build Better Explosion Proof Fan Systems.

ATEX is always changing, which can be confusing for customers who aren't familiar with hazardous areas. UK & EU ATEX Directives and legislation regulate the design of ATEX fans in the UK market. You must correctly select and place fans to suit the hazardous area classification they're planned to be used in.

That's why we're here, to simplify and help our customers to choose the right ATEX fan for their gas or dust application.

Zone 1 and Zone 2 Gas Fans

We don't supply zone 0 fans, as they're the most dangerous environments to operate in.

But zone 1, where an explosion risk happens occasionally, or zone 2, where the risk may occur rarely, is right up our street.

What you'll need is usually clear in a DSEAR report. if you're not sure what your next steps are, chat with us and we'll simplify exactly what you need to do next.

Zone 22 Dust Fans

If you're looking for an ATEX fan in a dusty environment that may have combustible dust present, we've got you covered.

Reach out to our team to make a selection.

IIC Hydrogen Gas Fans

All of our ATEX fans are certified for use in applications involving hydrogen gas. You'll be looking for a fan that has a mechanical contruction of IIB +H2 or IIC, both are certified for use in H2 environments.

Whatever the application, from battery toom ventilation, hydrogen dilution ventilation, electrolysis in energy generation, or many net zero innovation projects, we're techically minded to assist in project design, often giving an impartial, educated view on how systems could be improved to perform better.

Start a project now to see how we can add value to Hydrogen based selections.

Axial and Centrifugal Models

Our ATEX fan portfolio includes both axial and centrifugal models including plate and plate axial fans, roof fans, belt driven ATEX fans, and a full supply of centrifugal fans including those with none corrosive material such as carbon loaded polypropylene to prevent static sparking.

Chat with our pre-sales team who'll fact find their way to the best selection for your application.

Notified Body Nº 0163

LOM is the chosen Notified Body Nº 0163 by Casals Ventilation to carry out third-party conformity assessment under the ATEX Directive

The acting as a third party has been one of the fundamental activities of LOM since it was created.

In the field of explosive atmospheres, LOM acts as a certification body in regulatory schemes and in voluntary schemes, being:

Notified Body for the Directive 2014/34/EU od the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres.
Certification body of IECEx global certification scheme.
Additionally, LOM has developed its own certification schemes in the field of explosive atmospheres such as:
Certification reparatEX for workshops that carry out the repair of ATEX certified equipment.
Qualification of people who perform different jobs with ATEX equipment or in an ATEX environment.

LOM is a Notified Body for Directive 2014/34/EU of the European Parliament and of the Council of 26 February 2014, on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres, having been authorised to carry out the following third-party conformity assessment tasks:

Module B: EU-Type Examination.
Module D: Conformity to type based on quality assurance of the productions process.
Module F: Conformity to type based on product verification.
Module C1: Conformity to type based on internal production control plus supervised product testing.
Module E: Conformity to type based on product quality assurance.
Module G: Conformity based on unit verification.

The commercialisation and control in Europe of a civil explosive is regulated by Directive 2014/28/EU of the European Parliament and the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market and supervision of explosives for civil uses.

The responsible for placing the product on the market, manufacturer, authorised representative or importer must follow one of the conformity assessment procedures defined in Article 20 of that Directive, in order to draw up the EU declaration of conformity and mark CE in this product. LOM is Notified Body Nº 0163 to carry out third-party conformity assessment tasks under Directive:

Module B: EU-type examination.
Module C2: Conformity to type based on internal production control plus supervised product checks at random intervals.
Module D: Conformity to type based on quality assurance of the production process.
Module E: Conformity to type based on product quality assurance.
Module F: Conformity to type based on product verification.
Module G: Conformity based on unit verification.

Anyone requesting information on the certification of Casals Ventilation ATEX fans certified for use in UK hazardous environments should put it in writing to [email protected].

Authorised ATEX Supply

A manufacturer may appoint an authorised representative to safely distribute, integrate and sell ATEX components into their respective markets. An authorised representative shall perform the tasks specified in the mandate received from the manufacturer.

Axair act as the authorised representative for SEAT Ventilation, enabling us to act as the leading party for the sale and distribution of zone 2 ATEX carbon loaded polypropylene fans into the UK hazardous area market. All technical testing is dutifully carried out under self certification by SEAT Ventilation, with technical files and ATEX certificates for all polypropylene fans held with them, the manufacturer and lodged with notified bodies where required.

ATEX Motor Definitions

While all ATEX fans should be certified Ex h to show that they are mechanically constructed in line with ATEX Directive guidelines, so should the electrical parts. This includes the ATEX ratings of the motors, whether standard or external rotor motor.

For gas environments, the protection principle ensures that an ignition does not occur from sparks and arcs from the motor.

Ex eb - increased safety, explosion protected - suitable for zone 1

Ex ec - increase safety but the lowest and normal level of ATEX protection, also known as reduced risk protection and for motors is non sparking - suitable for zone 2

Ee Db - flameproof - suitable for zone 1

Ex tb - offers a high level of protection in category 2 / zone 21 dust applications

Ec tc - offers a normal level of protection in category 3 / zone 22 dust applications

Read the full article relating to ATEX definitions here.

Temperature Classes

Temperature classes, also known as T-classes, are designed to prevent the auto-ignition of gases and dusts.

Auto-ignition is the lowest temperature that a gas or dust will spontaneously ignite in air, without a spark or flame, due to its own heat in its environment, causing an explosion. Every gas on earth, as taught in chemistry has an ignition temperature.

T-classes help to choose ATEX components for use with specific gases and dusts.

Hazardous area apparatus is classified according to the maximum surface temperature produced under the maximum operating capacity at an ambient temperature of 45°C, or as otherwise specified. For example a motor. The standard classifications are:

T1 450°C
T2 300°C
T3 200°C
T4 135°C
T5 100°C
T6 85°C

As highlighted, this is the lowest temperature at which a gas, vapour or dust will b ignited without a spark or flame.

Example:

Hazardous Gas: Hydrogen

Ignition Temp: 584.85°C

T Class: Greater than 450°C therefore T1

The maximum surface temperature on components used within the hazardous are containing Hydrogen should not exceed 450°C to prevent the auto ignition of Hydrogen gas. All equipment that generated a surface temperature greater than 450 cannot be used in a Hydrogen atmosphere.

Download ATEX Temperature Class Document here.

If you're interested in learning more we've covered this topic in greater depth here.

ATEX Gas & Dust Zones

The ATEX gas or dust zone is required in all occasions of fan selection. The ATEX zone determines the frequency an presence of the hazardous gas or dust in the application, so that the equipment protection level can be selected correctly.

When is the gas or dust present in the area the fan will occupy?

rarely (zone 2 or 22) - level c required
ocassionally (zone 1 or 21) - level b required
always (zone 0 or 20) - level a required

Zones 0, 1 and 2 relate to gases and vapours, while zones 0, 21 and 22 relate to combustible dusts.

Equipment Protection Levels:

highest level protection - level a
moderate level protection - level b
standard level protection - level c

ATEX zones for gases/vapour:

Zone 0 (gases/vapours) or Category 1G: an area in which an explosive mixture is continuously present or present for long periods.

Zone 1 (gases/vapours) or Category 2G: an area in which an explosive mixture is likely to occur in normal operation.

Zone 2 (gases/vapours) or Category 3G: an area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short time.

ATEX zones for dust:

Zone 20 (dusts) or Category 1D: an area in which an explosive mixture is continuously present or present for long periods.

Zone 21 (dusts) or Category 2D: an area in which an explosive mixture is likely to occur in normal operation.

Zone 22 (dusts) or Category 3D: an area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short time.

Read the full ATEX Gas and Dust Article here.

Tell Us About Your High Risk Industry

With complex specifications, and pages of ATEX directives to get your head around, its easy to get stuck. That's where Axair step in. By integrating technical consultancy (at no extra charge may we add) into the explosion proof fan buying process, we ensure you receive fan solutions that are perfectly suited to your hazardous zone requirements.

Ventilation plays a crucial role in the prevention and control of explosive atmospheres in so many industries. It contributes to hazardous area protection and prevention approaches by diluting concentrations of explosive gases, vapors or dusts, keeping concentrations below the lower explosive limit (LEL) or preventing sparks and arcs from occuring as a result of friction rubbing through permissable material pairing. So whether it’s a fan for a corrosive chemical environment, battery room ventilation, a new net zero innovation, or a general ATEX fan to reduce risk of ignition sources in any ventilation system, we’re the go-to solutions partner in the industry. Get in touch with us to see how we can help you find the right component, and if it's not us you need, we'll direct you to the right company.

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Let's Select The Right Explosion Proof Industrial Fan Together

We don’t just sell ATEX fans, we help you to solve complex ventilation challenges in hazardous areas. Whether you're an engineer with a full technical brief or just starting out with zone classifications, our experts will support you at every stage. We’ll talk through your application goals, your site certification, any complications, challenge your design if we think it could benefit from a change, and finally select a fan that’s both safe for install on your UK site, and fits with your cost and lead time goals. Our team has helped thousands of UK businesses build compliant, high-performing ventilation systems that use an ATEX fan as the workhorse, and we’re ready to do the same for you. Reach out today for trusted advice, not a sales pitch.

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Join A Group of Engineers Who Trust Axair To Get It Right

We work with some of the biggest names in chemical, energy, and industrial sectors, not because we shout the loudest, but because we know our stuff. Engineers come to us when they need the right ATEX fan, fast. They stay because we make their jobs easier, safer, and fully compliant. If you're facing a tricky spec or tight deadline, you're not alone, and you're in the right place.

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