• EN 14491:2012

    Current The latest, up-to-date edition.

    Dust explosion venting protective systems

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    Published date:  08-08-2012

    Publisher:  Comite Europeen de Normalisation

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Venting of enclosures
    5 Sizing of vent areas
    6 Supplementary design considerations
    7 Marking
    8 Information for use
    Annex A (informative) - Explosion venting of dust filters
    Annex B (informative) - Explosion venting of cyclones
    Annex C (informative) - Estimating the L/D ratio when
            calculating vent areas for elongated enclosures
    Annex D (informative) - Protection of buildings
    Annex E (informative) - Deflectors
    Annex F (informative) - Significant changes between
            this European Standard and EN 14491:2006
    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 specifies the basic requirements of design for the selection of a dust explosion venting protective system. The standard is one of a series including EN 14797, Explosion venting devices and EN 14460, Explosion resistant equipment. The three standards together represent the concept of dust explosion venting. To avoid transfer of explosions to other communicating equipment, one should also consider applying EN 15089 Explosion Isolation Systems.This European Standard covers:-vent sizing to protect an enclosure against the internal pressure effects of a dust explosion;-flame and pressure effects outside the enclosure;-recoil forces;-influence of vent ducts;-hybrid mixtures.This European Standard is not intended to provide design and application rules against effects generated by detonation reactions or runaway exothermic reactions. This European Standard does not cover fire risks arising from materials either processed, used or released by the equipment or from materials that make up equipment and buildings. This European Standard does not cover the design, construction, testing and certification of explosion venting devices that are used to achieve explosion venting

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

    Committee CEN/TC 305
    Development Note Supersedes PREN 14491. (08/2012) Supersedes UNE EN 14491. (09/2012)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current
    Supersedes

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

    BS EN 15089:2009 Explosion isolation systems
    PREN 1127-1 : DRAFT 2017 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    DIN EN 16447 E : 2014 EXPLOSION ISOLATION FLAP VALVES
    12/30243081 DC : 0 BS EN 1034-17 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PAPER MAKING AND FINISHING MACHINES - PART 17: TISSUE MAKING MACHINES
    09/30198043 DC : 0 BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    UNI EN 13237 : 2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    16/30348296 DC : DRAFT DEC 2016 BS EN 14460 - EXPLOSION RESISTANT EQUIPMENT
    I.S. EN 15089:2009 EXPLOSION ISOLATION SYSTEMS
    I.S. EN 415-10:2014 SAFETY OF PACKAGING MACHINES - PART 10: GENERAL REQUIREMENTS
    I.S. EN 16009:2011 FLAMELESS EXPLOSION VENTING DEVICES
    UNE-EN 15089:2010 Explosion isolation systems
    I.S. EN 1034-17:2012 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PAPER MAKING AND FINISHING MACHINES - PART 17: TISSUE MAKING MACHINES
    17/30365866 DC : 0 BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    PREN 16770 : DRAFT 2014 SAFETY OF WOODWORKING MACHINES - CHIP AND DUST EXTRACTION SYSTEMS FOR INDOOR INSTALLATION - SAFETY REQUIREMENTS
    BS EN 14994:2007 Gas explosion venting protective systems
    UNE-EN 1127-1:2012 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    BS EN 14797:2006 Explosion venting devices
    DIN EN 14994:2007-05 Gas explosion venting protective systems
    EN 1034-17:2012 Safety of machinery - Safety requirements for the design and construction of paper making and finishing machines - Part 17: Tissue making machines
    DIN EN 14797:2007-03 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 12779:2015 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
    PREN 1672-1 : DRAFT 2012 FOOD PROCESSING MACHINERY - BASIC CONCEPTS - PART 1: SAFETY REQUIREMENTS
    UNI EN 16447 : 2014 EXPLOSION ISOLATION FLAP VALVES
    12/30267131 DC : 0 BS EN 16447 - EXPLOSION ISOLATION FLAP VALVES
    08/30180312 DC : DRAFT MAR 2008 BS EN 50223 - STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
    12/30259421 DC : 0 BS EN 1672-1 - FOOD PROCESSING MACHINERY - BASIC CONCEPTS - PART 1: SAFETY REQUIREMENTS
    BS EN 16020:2011 Explosion diverters
    BS EN 50223:2015 Stationary electrostatic application equipment for ignitable flock material. Safety requirements
    DIN EN 16009:2011-10 Flameless explosion venting devices
    I.S. EN 16020:2011 EXPLOSION DIVERTERS
    UNI EN 16009 : 2011 FLAMELESS EXPLOSION VENTING DEVICES
    PREN 16985 : DRAFT 2016 SPRAY BOOTHS FOR ORGANIC COATING MATERIAL - SAFETY REQUIREMENTS
    BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    NF EN 1127-1 : 2011 EXPLOSIVES ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    DIN EN 15233:2007-11 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
    BS EN 15233:2007 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
    I.S. EN 13237:2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    DIN EN 1127-1:2011-10 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    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 8.1:2011-03 Dust fires and dust explosions - Hazards - assessment - protective measures - Fire and explosion protection on elevators - Examples
    VDI 2263 Blatt 5.1:2014-10 Dust fires and dust explosions - Hazards, assessment, protective measures - Explosion protection in fluid bed dryers - Hints and examples of operation
    VDI 2263 Blatt 6:2017-08 Dust fires and dust explosions - Hazards - assessment - protective measures - Dust fires and explosion protection in dust extracting installations
    VDI 2263 Blatt 7.1:2013-03 Dust fires and dust explosions - Hazards - assessment - protective measures - Fire and explosion protection in spraying and drying integrated equipment - Examples
    VDI 2262 Blatt 1:2013-06 Workplace air - Reduction of exposure to air pollutants - Legal principles, terms and definitions, basic organisational measures for industrial safety and environmental protection
    PREN 50223 : DRAFT 2013 STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
    09/30209992 DC : 0 BS EN 16020 - EXPLOSION DIVERTERS
    DIN EN 15089:2009-07 EXPLOSION ISOLATION SYSTEMS
    BS EN 1034-17:2012 Safety of machinery. Safety requirements for the design and construction of paper making and finishing machines Tissue making machines
    UNI EN 15089 : 2009 EXPLOSION ISOLATION SYSTEMS
    DIN EN 415-10:2014-07 SAFETY OF PACKAGING MACHINES - PART 10: GENERAL REQUIREMENTS
    PREN 12779 : DRAFT 2014 SAFETY OF WOODWORKING MACHINES - CHIPS AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATIONS - SAFETY REQUIREMENTS
    UNI EN 415-10 : 2014 SAFETY OF PACKAGING MACHINES - PART 10: GENERAL REQUIREMENTS
    BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    I.S. EN 1127-1:2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    DIN EN 14994 E : 2007 GAS EXPLOSION VENTING PROTECTIVE SYSTEMS
    DIN EN 12779:2016-03 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
    DIN EN 15233 E : 2007 METHODOLOGY FOR FUNCTIONAL SAFETY ASSESSMENT OF PROTECTIVE SYSTEMS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES
    ONORM EN 14373 : 2006 EXPLOSION SUPPRESSION SYSTEMS
    UNE-EN 50223:2016 Stationary electrostatic application equipment for ignitable flock material - Safety requirements
    13/30284894 DC : 0 BS EN 50223 - STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
    BS EN 16447:2014 Explosion isolation flap valves
    UNI EN 1034-17 : 2012 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PAPER MAKING AND FINISHING MACHINES - PART 17: TISSUE MAKING MACHINES
    09/30208493 DC : 0 BS EN 16009 - FLAMELESS EXPLOSION VENTING DEVICES (TYPE C STANDARD)
    BS EN 415-10:2014 Safety of packaging machines General Requirements
    14/30292850 DC : 0 BS EN 12779 - SAFETY OF WOODWORKING MACHINES - CHIPS AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATIONS - SAFETY REQUIREMENTS
    DIN EN 1034-17 E : 2012 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PAPER MAKING AND FINISHING MACHINES - PART 17: TISSUE MAKING MACHINES
    DIN EN 1034-17:2012-11 Safety of machinery - Safety requirements for the design and construction of paper making and finishing machines - Part 17: Tissue making machines
    DIN EN 15089 E : 2009 EXPLOSION ISOLATION SYSTEMS
    DIN EN 16447:2014-09 EXPLOSION ISOLATION FLAP VALVES
    UNI EN 1127-1 : 2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    UNI EN 16020 : 2012 EXPLOSION DIVERTERS
    I.S. EN 14460:2018 EXPLOSION RESISTANT EQUIPMENT
    I.S. EN 16447:2014 EXPLOSION ISOLATION FLAP VALVES
    EN 14460:2018 Explosion resistant equipment
    14/30301874 DC : 0 BS EN 16770 - SAFETY OF WOODWORKING MACHINES - CHIP AND DUST EXTRACTION SYSTEMS FOR INDOOR INSTALLATION - SAFETY REQUIREMENTS
    16/30335146 DC : 0 BS EN 16985 - SPRAY BOOTHS FOR ORGANIC COATING MATERIAL - SAFETY REQUIREMENTS
    NF EN 16009 : 2011 FLAMELESS EXPLOSION VENTING DEVICES
    DIN EN 14797 E : 2007 EXPLOSION VENTING DEVICES
    BS EN 12779:2015 Safety of woodworking machines. Chip and dust extraction systems with fixed installation. Safety requirements
    BS EN 13237:2012 Potentially explosive atmospheres. Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
    EN 415-10:2014 Safety of packaging machines - Part 10: General Requirements
    EN 14797:2006 Explosion venting devices
    EN 16009:2011 Flameless explosion venting devices
    EN 16020:2011 Explosion diverters
    EN 15089:2009 Explosion isolation systems
    EN 15233:2007 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
    EN 16447:2014 Explosion isolation flap valves
    EN 14994:2007 Gas explosion venting protective systems
    S.R. CEN/TR 16829:2016 FIRE AND EXPLOSION PREVENTION AND PROTECTION FOR BUCKET ELEVATORS
    NF EN 16020 : 2011 EXPLOSION DIVERTERS
    BS EN 16009:2011 Flameless explosion venting devices
    DIN EN 16020:2011-10 Explosion diverters
    I.S. EN 50223:2015 STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
    DIN EN 13237:2013-01 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    UNE-EN 12779:2016 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
    EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    EN 50223:2015 Stationary electrostatic application equipment for ignitable flock material - Safety requirements

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

    EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    EN 15089:2009 Explosion isolation systems
    EN 16009:2011 Flameless explosion venting devices
    EN 14034-2:2006+A1:2011 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds
    VDI 3673 Blatt 1:2002-11 Pressure venting of dust explosions
    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 14034-1:2004+A1:2011 Determination of explosion characteristics of dust clouds - Part 1: Determination of the maximum explosion pressure pmax of dust clouds
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