BRILEX - Explosion Diverter

Explosion diverters were probably the first method employed to decouple dust explosions. The advantage of this method was always that it provided protection in both directions as it allowed pressure to be reliably decoupled at the explosion diverter, irrespective of whether the explosions came from the extractor or filter sides.



But the method wasn't very effective when it came to the suppression of flames, and spreading flames facilitate the propagation of explosions and often cause serious damage. The method also produces massive pressure losses in the affected systems, which also severely restricts the widespread use of such diverters.

But DIN EN 16020:2011 has now created a way of using explosion diverters safely. The testing procedures that it specifies with the design regulations and the detailed catalogue of requirements that it contains clearly set out the demands that such diverters must satisfy, if they are to be used in protective systems.



But what can the standard deliver when massive losses of pressure in this "pipe in pipe" system put the cost-effectiveness of such diverters into question? Classical geometries defined in the standard produce pressure losses of up to 1500 PA, which would require huge additional fan performance to compensate.

However, new flow-simulation programs now make it possible to reduce pressure losses with standard-compliant designs by over 60% to 550 Pa. This means that, technically, the loss of pressure has been reduced to the levels that can be achieved with non-return valves – which for many years have been broadly accepted as cost-effective decoupling systems.

Explosion diverters may also be employed to provide cost-effective bidirectional safety and protection.

Explosion Diverter

Explosion Diverter

Dimensions

DN A/B (mm) C (mm) D (mm) H (mm) without Explosion Vent
140 309/309 217 51 420
180 500/300 268 91 500
224 537/385 327 122 602
250 490/490 366 133 665
300 570/570 432 174 780
315 690/550 448 175 807,5
355 788/645 490 181 877,5
400 735/735 567 192 1010
450 1000/666 622 215 1105
500 1198/690 705 249 1250
560 1000/1000 787 296 1390
630 1100/1100 884 285 1560

The right explosion vent

Explosion Vent

BRILEX - GE

It's important for explosion diverters that the mechanical integrity of the fitted explosion vent has been certified accordingly. The explosion vent must be able to withstand the extreme conditions caused by the progress of the explosion in the explosion diverter.
BRILEX - GE, a rectangular explosion vent with specially shaped curvature that is resistant to vacuums and therefore delivers sufficient stability, is suitable for such applications. The explosion vent withstands severe pressure cycles without limit while providing reliable protection.

Explosion Diverter

Explosion Diverter

Dimensions

DN Diverter A/B OD Explosion Vent Vent Size ID Type Explosion Vent
140 309/309 229 x 229 GE / DIV
180 500/300 220 x 420 GE / DIV
224 537/385 305 x 457 GE / DIV
250 490/490 410 x 410 GE / DIV
300 570 /570 490 x 490 GE / DIV
315 690/550 470 x 610 GE / DIV
355 788/645 525 x 668 GE / DIV
400 735/735 645 x 645 GE / DIV
450 1000/666 586 x 920 GE / DIV
500 1198/690 610 x 1118 GE / DIV
560 1000/1000 920 x 920 GE / DIV
630 1100/1100 1020 x 1020 GE / DIV