Passive Explosion Barriers

Passive explosion barriers generally consist of some form of framework upon which loose stone dust is placed or water tubs are suspended. The successful operation of any passive barrier is dependent on the explosion pressure and time delay between arrival of pressure front and flame at barrier site to distribute the inertant into the flame. Traditional stone dust shelf and water trough passive barriers require high triggering pressures to operate, and this why they will not stop a methane only explosion.