Meeting the criteria for ATEX with Quadro®

Directive 94/9/EC (ATEX 95), and Directive 99/92/EC (ATEX 137) were introduced by the European Parliament and the Council of the European Union in order to protect the lives and health of workers who are using equipment in hazardous areas.

 

Directive 94/9/EC (ATEX 95) is also commonly known as the ‘Equipment Directive’. As of July 1, 2003, all new equipment placed on the market in the European Community must conform to this directive. This directive applies to equipment used in hazardous “zoned” areas and also to equipment used to process potentially explosive materials. Equipment that is manufactured to this Directive is marked with the ‘Ex’ logo.

 

 

 

Directive 99/92/EC (ATEX 137) is also commonly known as the ‘Worker Protection Directive’. This directive requires the employer to assess the explosion risks by zoning and posting signs in their plant to identify the hazardous area, writing an Explosion Protection Document (EPD), specifying the proper Category of equipment required for the hazardous area, and ensuring that all equipment is safe for use in the hazardous area. This directive is currently mandatory for all new equipment installed on or after July 1, 2003 and will become mandatory for all existing equipment installations effective July 1, 2006.

 

Quadro ATEX Comil®

 

When milling potentially explosive products, or milling in a hazardous “zoned” area, special measures must be taken in the design and in the operation of the Comil. Proper bonding and grounding of the mill and mating equipment is essential to minimize static charges. In some cases, it is necessary to monitor temperature, amperage and product level inside of the Comil to prevent ignition. In other cases, when milling products with a low Minimum Ignition Energy (MIE<3 mJ) or low Minimum Ignition Temperature (MIT<300º C), it may be necessary to inert the Comil or use explosion Pressure Shock Resisitant (PSR) construction.

 

The Quadro Comil is certified for the following ATEX Categories:

 

Quadro Vac® ATEX Vacuum Conveyors

 

When pneumatically conveying potentially explosive bulk materials or conveying in a hazardous "zoned" area, special measures must be taken in the design and operation of the the Quadro Vac. Proper bonding and grounding of the vacuum conveyor and the mating equipment is essential to minimize static charges. The Quadro Vac is suitable to convey dry products with low Minimum Ignition Energies (MIE>3 mJ). Conveying hybrid mixtures or discharging into a gas explosive atmosphere is not allowed.

 

The Quadro Vac is certified for the following ATEX Categories:

 

Quadro® ATEX FlexSift

 

When security screening or sifting potentially explosive products or using the FlexSift in a hazardous "zoned" area, special measures must be taken in the design and operation of the Quadro FlexSift. Proper bonding and grounding of the FlexSift and the mating equipment is essential to minimize static charges. When sifting products with a low Minimum Ignition Energy (MIE<3 mJ) or low Minimum Ignition Temperature (MIT<300º C), it may be necessary to inert the FlexSift or use explosion Pressure Shock Resistant (PSR) construction.

 

The Quadro FlexSift is certified for the following ATEX Categories:

 

Quadro® ATEX Fine Grind

 

When milling potentially explosive products, or milling in a hazardous “zoned” area, special measures must be taken in the design and in the operation of the Fine Grind Mill. Proper bonding and grounding of the mill and mating equipment is essential to minimize static charges. Hard, foreign objects must be screened from the product prior to milling and no flammable solvents are allowed inside the mill. In some cases it is necessary to limit the speed of the feeder that charges the mill, monitor temperatures, amperage and flow rates inside the mill to prevent ignition. When milling products with a low Minimum Ignition Energy (MIE<3 mJ) or low Minimum Ignition Temperature (MIT<300º C), it may be necessary to inert the Fine Grind Mill.

 

The Fine Grind Mill is certified for the following ATEX Categories:

  •   II 1D 140º C (internal)/2GD IIB 160º C (external) suitable for use in a Zone 1, 2, 21, 22 hazardous area. Zone 20 inside the Fine Grind Mill (FSA 08 ATEX 1858X)
  • EC Type Examination Certificate - EN

 

Annex IV - Quality Assurance Notification

 

This certifies that Quadro has a production quality system which complies with Annex IV of ATEX Directive 94/9/EC (ATEX 95).

 

What can Quadro offer?

 

Quadro offers a free evaluation of your Comil installation and a quotation indicating what upgrades are necessary to meet ATEX.

 

Rely on the experts for the right answers

 

Quadro Engineering is the originator of conical screen milling and has been supplying Comils for use in hazardous areas since 1976. Since 2003, when the new directive was introduced, Quadro has been delivering ATEX certified Comils for a broad range of classifications. Quadro is the ATEX Expert when it comes to conical screen milling.

 

Why take any chances?

 

Put our ATEX experience to work for you!

 

For more information, email us at: qecsales@idexcorp.com

 

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