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EN 14797:2006

Current

Current

The latest, up-to-date edition.

Explosion venting devices

Published date

06-12-2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
   4.1 General
   4.2 Potential sources of ignition
5 Types of explosion venting devices
   5.1 Explosion venting devices with reusable elements
   5.2 Explosion venting devices with non reusable elements
6 Back pressure supports
   6.1 General
   6.2 Opening back pressure supports
   6.3 Non-opening back pressure supports
7 Testing of explosion venting devices
   7.1 General
   7.2 Static activation pressure
   7.3 Explosion testing
8 Information for use
9 Assembly, replacements or reusability
10 Marking
   10.1 General
   10.2 Explosion venting devices with reusable retaining
        elements
   10.3 Explosion venting devices with non-reusable
        retaining element
   10.4 Omission of markings
11 Packaging
   11.1 General
   11.2 Marking
Annex A (informative) Examples for explosion venting devices
      A.1 Re-closing explosion venting devices
      A.2 Devices which require manual repositioning or
          replacement of the retaining element
      A.3 Devices with non reusable elements
Annex B (informative) Service and maintenance
      B.1 General
      B.2 Servicing
Annex ZA (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 94/9/EC
Bibliography
Figures
Tables

This European Standard specifies the requirements for venting devices used to protect enclosures against the major effects of internal explosions arising from the rapid burning of suspended dust, vapour or gas contained within. It includes the requirements for the design, inspection, testing, marking, documentation and packaging. This European Standard specifies explosion venting devices which are put on the market as autonomous protective systems.Explosion venting devices are safety devices comprised of a pressure sensitive membrane fixed to and forming part of the structure that it protects, designed to intervene in the event of an explosion at a predetermined low pressure, to immediately open a vent area sufficient to ensure that the maximum pressure attained by the explosion within the enclosure does not exceed its designed resistance to pressure.The application and specification of explosion venting devices is outlined for dust explosion protection in EN 14491 and for gas explosion protection in prEN 14994. The use of venting devices according to this European Standard on pipelines and on applications other than described in EN 14491 or prEN 14994 needs to be carefully evaluated and where appropriate their suitability needs to be confirmed by tests.Flameless explosion venting devices avoid the breakthrough of flames into the surroundings. They are used to allow explosion venting in situations where the hazards of flames resulting from the venting action are not acceptable. Flameless explosion venting devices are treated in a separate standard.This European Standard does not cover details for the avoidance of ignition sources from detection devices or other parts of the venting devices.

Committee
CEN/TC 305
DevelopmentNote
Supersedes PREN 14797. (12/2007)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

Standards Relationship
NF EN 14797 : 2007 Identical
NS EN 14797 : 1ED 2006 Identical
I.S. EN 14797:2006 Identical
NBN EN 14797 : 2007 Identical
NEN EN 14797 : 2007 Identical
SN EN 14797 : 2007 Identical
UNE-EN 14797:2007 Identical
UNI EN 14797 : 2007 Identical
BS EN 14797:2006 Identical
PN EN 14797 : 2009 Identical
DIN EN 14797:2007-03 Identical

PREN 1127-1 : DRAFT 2017 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
FM 7730 : 2014 EXPLOSION VENTING DEVICES
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
DIN EN ISO/IEC 80079-34:2012-03 EXPLOSIVE ATMOSPHERES - PART 34: APPLICATION OF QUALITY SYSTEMS FOR EQUIPMENT MANUFACTURE (ISO/IEC 80079-34:2011)
17/30365866 DC : 0 BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
I.S. EN 16009:2011 FLAMELESS EXPLOSION VENTING DEVICES
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
DIN EN 1127-2:2002-07 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
DIN EN 14994:2007-05 Gas explosion venting protective systems
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
UNI EN 16447 : 2014 EXPLOSION ISOLATION FLAP VALVES
PREN 14491 : DRAFT 2011 DUST EXPLOSION VENTING PROTECTIVE SYSTEMS
12/30267131 DC : 0 BS EN 16447 - EXPLOSION ISOLATION FLAP VALVES
BS EN ISO/IEC 80079-34:2011 Explosive atmospheres Application of quality systems for equipment manufacture
08/30180312 DC : DRAFT MAR 2008 BS EN 50223 - STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
BS EN 16020:2011 Explosion diverters
11/30247683 DC : 0 PREN 14491 REV - DUST EXPLOSION VENTING PROTECTIVE SYSTEMS
BS EN 50223:2015 Stationary electrostatic application equipment for ignitable flock material. Safety requirements
12/30270980 DC : 0 BS EN 1127-2 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
I.S. EN 16020:2011 EXPLOSION DIVERTERS
UNI EN 16009 : 2011 FLAMELESS EXPLOSION VENTING DEVICES
I.S. EN 1127-1:2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
I.S. EN ISO/IEC 80079-34:2011 EXPLOSIVE ATMOSPHERES - PART 34: APPLICATION OF QUALITY SYSTEMS FOR EQUIPMENT MANUFACTURE
NF EN 1127-1 : 2011 EXPLOSIVES ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
I.S. EN 14460:2018 EXPLOSION RESISTANT EQUIPMENT
DIN EN 15233:2007-11 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
DIN EN 14491:2012-10 Dust explosion venting protective systems
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 1127-2:2014 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
I.S. EN 12779:2015 SAFETY OF WOODWORKING MACHINES - CHIP AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATION - SAFETY RELATED PERFORMANCES AND SAFETY REQUIREMENTS
I.S. EN 14491:2012 DUST EXPLOSION VENTING PROTECTIVE SYSTEMS
VDI 2263 Blatt 8.2:2014-12 Dust fires and dust explosions - Hazards - assessment - protective measures - Explosion suppression and combination of structural protective measures in elevators
VDI 2263 Blatt 7:2010-07 Dust fires and dust explosions - Hazards - assessment - protective measures - Dust fires and explosion protection in spraying and drying integrated equipment
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
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
PREN 50223 : DRAFT 2013 STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE FLOCK MATERIAL - SAFETY REQUIREMENTS
09/30209992 DC : 0 BS EN 16020 - EXPLOSION DIVERTERS
PREN 12779 : DRAFT 2014 SAFETY OF WOODWORKING MACHINES - CHIPS AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATIONS - SAFETY REQUIREMENTS
UNE-EN ISO/IEC 80079-34:2012 Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture
PREN 16985 : DRAFT 2016 SPRAY BOOTHS FOR ORGANIC COATING MATERIAL - SAFETY REQUIREMENTS
BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
DIN EN 1127-2:2014-09 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
DIN EN 12779:2016-03 Safety of woodworking machines - Chip and dust extraction systems with fixed installation - Safety requirements
UNI EN 1127-2 : 2014 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
UNI EN 14491 : 2012 DUST EXPLOSION VENTING PROTECTIVE 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
14/30292850 DC : 0 BS EN 12779 - SAFETY OF WOODWORKING MACHINES - CHIPS AND DUST EXTRACTION SYSTEMS WITH FIXED INSTALLATIONS - SAFETY REQUIREMENTS
UNI EN 1127-1 : 2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
DIN EN 16447:2014-09 EXPLOSION ISOLATION FLAP VALVES
UNI EN 16020 : 2012 EXPLOSION DIVERTERS
CEI UNI EN ISO/IEC 80079-34 : 2013 EXPLOSIVE ATMOSPHERES - PART 34: APPLICATION OF QUALITY SYSTEMS FOR EQUIPMENT MANUFACTURE
I.S. EN 16447:2014 EXPLOSION ISOLATION FLAP VALVES
EN 14460:2018 Explosion resistant equipment
16/30335146 DC : 0 BS EN 16985 - SPRAY BOOTHS FOR ORGANIC COATING MATERIAL - SAFETY REQUIREMENTS
NF EN 16009 : 2011 FLAMELESS EXPLOSION VENTING DEVICES
ISO/IEC 80079-34:2011 Explosive atmospheres Part 34: Application of quality systems for equipment manufacture
BS EN 14491:2012 Dust explosion venting protective systems
BS EN 12779:2015 Safety of woodworking machines. Chip and dust extraction systems with fixed installation. Safety requirements
EN ISO/IEC 80079-34:2011 Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture (ISO/IEC 80079-34:2011)
BS EN 13237:2012 Potentially explosive atmospheres. Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
BS EN 1127-2:2014 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology for mining
EN 14491:2012 Dust explosion venting protective systems
EN 16009:2011 Flameless explosion venting devices
EN 16020:2011 Explosion diverters
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
09/30190323 DC : 0 BS EN 14491 - DUST EXPLOSION VENTING PROTECTIVE SYSTEMS
S.R. CEN/TR 16829:2016 FIRE AND EXPLOSION PREVENTION AND PROTECTION FOR BUCKET ELEVATORS
09/30208493 DC : 0 BS EN 16009 - FLAMELESS EXPLOSION VENTING DEVICES (TYPE C STANDARD)
NF EN 16020 : 2011 EXPLOSION DIVERTERS
BS EN 16009:2011 Flameless explosion venting devices
DIN EN 16009:2011-10 Flameless explosion venting devices
PREN 1127-2 : DRAFT 2012 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
UNI CEI EN ISO/IEC 80079-34 : 2012 EXPLOSIVE ATMOSPHERES - PART 34: APPLICATION OF QUALITY SYSTEMS FOR EQUIPMENT MANUFACTURE
DIN EN 16020:2011-10 Explosion diverters
BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
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 1127-2:2014 Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining
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

EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
EN 13980:2002 Potentially explosive atmospheres - Application of quality systems
EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
EN 13463-1:2009 Non-electrical equipment for use in potentially explosive atmospheres - Part 1: Basic method and requirements
IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
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
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
ISO 4126-2:2003 Safety devices for protection against excessive pressure Part 2: Bursting disc safety devices
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
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

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