Inline Deflagration Flame Arrester: Endurance Burning

Inline Deflagration Flame Arrester

Flame Arrester approved to DIN EN ISO 16852 as inline deflagration flame arrester and for Endurance Burning

Deflagration = Explosion propagating at subsonic velocity

Endurance Burning = Stabilized burning for unlimited time.

Inline deflagration flame arresters are fitted with two pipe connections, one on each side of the flame arrester. They are designed to prevent transmission of a deflagration (explosion propagating at subsonic velocity) and also to stop flame propagation in case of endurance burning.

 

Range of products / Data Sheet

Inline Deflagration Flame Arrester – Endurance Burning : Explanation

Deflagration = Explosion propagating at subsonic velocity

Endurance Burning = Stabilized burning for unlimited time.

If explosive gas mixture in a pipe is ignited, then flame will propagate in direction to the e.g. gas tank. If a flame travels through a pipe, the flame speed increases with the length of the pipe. Up to a certain pipe length / pipe inside diameter ratio, the flame propagates at subsonic speed. If the flame propagate at subsonic speed then an inline deflagration flame arrester can stop the flame.

Inline deflagration flame arrester, approved for endurance burning for unlimited time prevents flame propagation to protected side after the gas flow has been switched off, even though the flame arrester is heated.

Inline deflagration flame arresters has a lower pressure drop than detonation flame arresters.

However, consider when installing inline deflagration flame arrester that the distance from ignition source to inline deflagration flame arrester is limited.

Inline deflagration flame arrester tested and authorized for endurance burning are also approved as deflagration flame arrester.

Range of products / Data Sheet

Picture: Endurance Burning – Deflagration Flame Arrester

Inline Deflagration Flame Arrester: Eccentric

Inline deflagration flame arrester designed to prevent the transmission of a deflagration (explosion propagating at subsonic velocity). Inline flame arresters are fitted with two pipe connections, one on each side of the flame arrester.

Inline Deflagration Flame Arrester: Short Time Burning

Inline deflagration flame arrester approved for stabilized burning for specified time. For detection of a stabilized flame a PT100 temperature sensor mounted on the unprotected side is necessary! When a stabilized flame is detected an action within 30 seconds has to be carried out which ensures a safe quenching of the flame. (E.g. stopping the gas flow)

Inline Deflagration Flame Arrester: Concentric

Inline deflagration flame arrester designed to prevent the transmission of a deflagration (explosion propagating at subsonic velocity). Inline flame arresters are fitted with two pipe connections, one on each side of the flame arrester.

Following options of connection are available.:
Thread, DIN EN-Flange, ANSI-Flange, JIS-Flange

Material:
Stainless Steel, Hastelloy or Carbon Steel 

 

 

EXPLOSIONS
GRUPPE
IIA1IIA
DN25 1″
DN40 1 1/2″
DN50 2″
DN65 2 1/2″
DN80 3″
DN100 4″
DN125 5″
DN150 6″
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