Feb 27, 2020

ATEX, derived from ‘ATmosphere EXplosible’ was extended from electrical equipment to cover mechanical equipment such as fans and came into force under Directive 94/9/EC on 01 July 2003. We work to the current directive, ATEX 2014/34/EV (2020) Fans & Blowers Ltd have been producing fans for this directive since this date.

We offer fans for Gas group II, Zone 1/21 (Cat.2G and 2D) and Zone 2/22 (Cat. 3G/3D) Zone 1 & 2 is for hazardous areas due to presence of a gas, Zone 21 & 22 is for hazardous areas due to the presence of dust. Fans & Blowers do not offer fans for Zone 0/20 (Cat.1G / 1D) at present. When buying ATEX fans it is important that the buyer is aware of the manufacturing standards that the potential supplier is working to and that the correct procedures are used for testing & certification. An ATEX fan should not be simply a standard fan with a hazardous area motor, rubbing rings and an EX label!

At Fans & Blowers Ltd all ATEX fans have been subjected to a rigorous ignition hazard assessment to determine correct design features (including selection of compatible materials) and in conjunction with an authoritative standard. We use BS EN 14986:2017 ‘Design of fans working in potentially explosive atmospheres’ Type of construction is ‘c’ (protection by constructional safety) EN ISO 80079-37.2016.

Our standard thus produced is QA3-1000 and contains design, manufacturing, testing, marking & certification procedures. All fans are subjected to a running test and high pressure fans maybe given an extended test run under closed damper conditions to verify & record maximum surface temperatures. Zone 1/21 fans have a requirement for the lodging of a Technical file with a ‘Notified body’ and these fans will therefore bear the identification ‘SIRA 04XT 334’

The actual features on the fan (eg. gas tight etc) will vary according to Zone, gas/dust type, ignition temperature and whether zone is inside and/or out, open inlet or fully ducted. Fans & Blowers have a range of ATEX fan grades to cover all eventualities which will be carefully selected by our experienced technical sales team. Please contact us to discuss this if you are unsure and we will guide you through your requirements. We will supply an ATEX questionnaire to assist you with this.

Please note however that the determination of the actual zone has to be specified by the customer as this must be based on a site hazard assessment, again our ATEX questionnaire will guide you on this.

If you have any questions or enquiries regarding ATEX fans please contact our sales team on 01278 784004 or send your enquiries to [email protected] We will be happy to support you in any enquiries and answer any questions you may have.

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