ATEX information AIR CONTROL INDUSTRIES LTD Silver Street - Chard - Somerset - TA20 2AE - UK Tel: ++44(0)1460 67171 - Fax:++44(0)1460 61700 email: sales@air-con.co.uk / web: www.air-con.co.uk ACI the solution providers for air movement problems SCHEDULE TYPE EXAMINATION CERTIFICATE NUMBER: 13. DESCRIPTION OF EQUIPMENT The VB, MR and #MS11 Centrifugal Fans are designed to provide air ventilation at flow rates up to 6000m3/h. They comprise a centrifugal fan that is mounted on the shaft of a suitably ATEX certified motor and enclosed by a housing that is bolted to the motor. The centrifugal impellers are manufactured from aluminium, stainless steel or galvanised steel and are mounted on a hub that fits to the motor shaft. The fan housings are manufactured from stainless steel or cast aluminium and may have a flat air inlet plates or spun air inlet guides that may be fitted with polyurethane foam, retained by mesh, for filtration purposes. The equipment is designed to have suitable clearances between rotating and stationary parts but brass rubbing rings are included as a precaution against incendive sparking in the event of the fan striking the housing. Non-return valves can be fitted if required; these consist of brass flapper plates that swivel in a stainless steel housing. The #MS11 type may have two centrifugal impellers; these are mounted on a shaft adaptor and, with this option, the fan casing includes additional air guides to maximise efficiency. The exterior of the fan is Category 2GD. The interior of the fan is Category 2G and Category 3D (This categorisation has been established through assessment of the equipment against the draft standard for the Design of Fans Working in Potentially Explosive Atmospheres TC305/WG2/SG1 W1 Doc N86-2: 2002-09). The temperature class of the equipment is determined by the temperature class of the associated motor. 14. DESCRIPTIVE DOCUMENTS Drawing No. Rev. Sheet Date Title SK03/1242 1 of 6 4 30 Apr 03 General arrangement SK03/1242 2 of 6 4 30 Apr 03 General arrangement - dimensions SK03/1242 3 of 6 4 30 Apr 03 VB fan details SK03/1242 4 of 6 4 30 Apr 03 2MS11 fan details SK03/1242 5 of 6 4 30 Apr 03 Valve layout SK03/1242 6 of 6 5 21 May 02 Label 14.2. Report No. R53A10033A 15. SPECIAL CONDITIONS FOR SAFE USE None 16. ESSENTIAL HEALTH AND SAFETY REQUIREMENTS (EHSRs) The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in Report No. R53A10033A. 17. CONDITIONS OF CERTIFICATION The use of this certificate is subject to the Regulations Applicable to Holders of Sira Certificates. Holders of Type Examination Certificates are required to comply with the production control requirements defined in Article 8 of directive 94/9/EC. 17.3. The fans shall be marked with the temperature class that is appropriate to its associated motor. 21 May 2003 - This certificate and its schedules may only be reproduced in its entirety and without any change. Ref: ATEX/July’06/Iss3

Customer Date Purchase Order Customer Contact The end user is responsible for assessing the explosion risk on site. In order for ACI to supply the customer with the correct fan we have constructed this form. Please note we can only continue with the order when this is completed. This form will then become part of the contract. Zone required (gas) Inside fan Zone 1 Zone 2 Tick appropriate box Outside fan Zone 1 Zone 2 Gas group (eg IIB) Inside fan Enter appropriate group Outside fan Temperature ‘T’ rating (eg T3 etc) Inside fan Outside fan Zone required (dust) Inside fan Zone 21 Zone 22 Tick appropriate box Outside fan Zone 21 Zone 22 Nature of dust Dry Abrasive Wet Corrosive Max. surface temp. dust Inside fan (enter temp. deg. C) Outside fan Customer Signature Date ATEX Requirements: Air Control Industries Ltd. Silver Street, Chard, Somerset, TA20 2AE, UK Tel: 01460 67171, Fax: 01460 61700 Email: sales@air-con.co.uk Web: www.air-con.co.uk