• EN 16447:2014

    Current The latest, up-to-date edition.

    Explosion isolation flap valves

    Available format(s): 

    Language(s): 

    Published date:  09-07-2014

    Publisher:  Comite Europeen de Normalisation

    Pure ENs are not available for sale, please purchase a suitable national adoption

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Explosion isolation flap valves
    5 Experimental testing of efficacy and mechanical
      integrity
    6 Information for use
    7 Marking
    Annex ZA (informative) - Relationship between this
             European Standard and the Essential
             Requirements of EU Directive 94/9/EC
    Bibliography

    Abstract - (Show below) - (Hide below)

    This European Standard describes the general requirements for flap valves used for dust explosion isolation. An explosion isolation flap valve is a protective system, which prevents a dust explosion from propagating via connecting pipes or ducts into other parts of apparatus or plant areas.An explosion isolation flap valve can only stop the propagation of a dust explosion when it propagates against the direction of the normal process flow. It does not stop explosions running in the normal process flow direction. This European Standard specifies methods for evaluating the efficacy of explosion isolation flap valves.This European Standard is applicable only to the use of explosion isolation flap valves that are intended for avoiding explosion propagation from a vessel, into other parts of the installation via connecting pipes or ducts. The standard covers isolation of such vessels that are protected by explosion venting (including flameless venting), explosion suppression or explosion resistant design.NOTE 1The standard assumes that the explosion starts in a vessel and not in ducting.Explosion isolation flap valves are not designed to prevent the transmission of fire or burning powder transported by the normal process flow.NOTE 2It is necessary to take this into account in risk assessments.This European Standard is only applicable for dust explosions.This European Standard is not applicable for explosions of materials listed below, or for mixtures containing some of those materials:a)gases, vapours and hybrid mixtures;b)chemically unstable substances;c)explosive substances;d)pyrotechnic substances.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 305
    Development Note Supersedes PREN 16447. (07/2014)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    16/30348296 DC : DRAFT DEC 2016 BS EN 14460 - EXPLOSION RESISTANT EQUIPMENT
    EN 12779:2015 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
    I.S. EN 12779:2015 SAFETY OF WOODWORKING MACHINES - CHIP AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATION - SAFETY RELATED PERFORMANCES AND SAFETY REQUIREMENTS
    VDI 2263 Blatt 6:2017-08 Dust fires and dust explosions - Hazards - assessment - protective measures - Dust fires and explosion protection in dust extracting installations
    DIN EN 12779:2016-03 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
    I.S. EN 14460:2018 EXPLOSION RESISTANT EQUIPMENT
    EN 14460:2018 Explosion resistant equipment
    BS EN 12779:2015 Safety of woodworking machines. Chip and dust extraction systems with fixed installation. Safety requirements
    UNE-EN 12779:2016 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
    EN 15089:2009 Explosion isolation systems
    EN 16009:2011 Flameless explosion venting devices
    EN 14373:2005 Explosion suppression systems
    EN 14797:2006 Explosion venting devices
    EN 13237:2012 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
    EN 14491:2012 Dust explosion venting protective systems
    1994/9/EC : 1994 DIRECTIVE 94/9/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL OF 23 MARCH 1994 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective