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  • BSI
    BS EN 16447:2014 Explosion isolation flap valves
    Edition: 2014
    $316.70
    / user per year

Description of BS EN 16447:2014 2014

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 explosion isolation flap valves which are intended to avoid 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 1 This standard is only applicable to cases where the explosion starts in a vessel and not in pipes or ducting.

Explosion isolation flap valves are not designed to prevent the transmission of fire or burning powder transported by the normal process flow.

NOTE 2 It 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:

  1. gases, vapours and hybrid mixtures;

  2. chemically unstable substances;

  3. explosive substances;

  4. pyrotechnic substances.



Standard NumberBS EN 16447:2014
TitleExplosion isolation flap valves
StatusDefinitive
Publication Date2014-07-31
Identical National Standard OfEN 16447:2014
DescriptorsFlammable atmospheres, Safety devices, Chemical plants, Dust, Flame propagation, Performance testing, Enclosures, Gases, Explosive atmospheres, Detectors, Explosions, Dust explosions, Occupational safety
ICS23.060.50 Check valves, 13.230 Explosion protection
CommitteeEXL/23
ISBN978 0 580 79756 9
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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