EZQ 20/4 E E Ex e - Maico fans

PLANNINGINSTRUCTIONSEZQ 20/4 E E Ex eVentilation as the central measure for primary explosion protectionIf it is not possible to exclude the use of combustible materials, the build-up of a potentially explosive atmospheres can often be avoided withsuitable ventilation measures. Gases and dust are only explosive when the mixture with air falls within certain concentration levels.The use of suitable ventilation equipment can often result in bringing the concentration below the lower explosion level, which in turn is areliable method of preventing the build-up of explosive atmospheres. In any case, the probability of them occurring or the scope of areas atrisk of explosion (zones) is reduced.Applications for ventilation equipment in areas subject to explosion hazardsTypical applications for ventilation equipment in areas subject to explosion hazards are:■ Storage facilities■ Process technical applications■ Workshops■ Petro-chemicals■ Battery rooms■ LaboratoriesBasically in such cases, a ventilation system is always necessary to convey the combustible gasses, vapours or mist from the explosiveatmosphere out of the building.Version: 17.12.2013 - MAICO VENTILATOREN, www.maico-fans.com - We are not responsible for mistakes or printing errors and retain theright to make technical modifications without giving prior noticePage 17