Understanding Flame Arrestor Systems and their Industrial Applications

Oct 23, 2015

Imperial Systems is a leader in the industry for safe, effective dust collector systems. 

There are many types of flame arrestor devices and systems available that meet NFPA standards for explosion protection in industrial dust collection systems.  As a leader in the industry and provider of our proprietary DeltaMAXX IDA (In-line Deflagration Arrester) filters, Imperial Systems presents this comparison of the most common types of flame arrestors and their applications.
flame arrestor is a device which allows gas to pass through it, yet stops a flame in order to prevent a larger fire or explosion. Regardless of types, all flame arrestors operate on the same principle: removing heat from the flame as it attempts to travel through narrow passages constructed of metal or other heat-conductive materials. A flame arrestor can be employed in many industries, including metalworking, pulp and paper, oil exploration and production, sewage treatment, mining, power generation, and bulk liquids transportation, among others.

Most flame arrestor designs fall into one of two categories:

End-of-Line (Vent to Atmosphere) Flame Arrestors

End-of-line flame arrestors are used in applications such as petroleum storage tank vents. The classic application is in preventing fire in the atmosphere from entering an enclosure. For example, flame arrestors have been commonly installed on oilfield storage tank vents for nearly a hundred years in order to keep them from exploding in the event that gas flowing from the vents may be struck by lightning.

In-Line Flame Arrestors (Deflagration or Detonation Arrestors)

In-line flame arrestors are installed in pipes to prevent flames from passing through them.  Most in-line flame arrestor applications protect systems which collect and/or filter gases emitted by liquids and solids. If an ignition occurs, a flame inside or outside of the system could result, with the potential to do catastrophic damage.

The various dynamic states of confined flames can be very dangerous for a process system due to the tremendous energies associated with detonation pressure and flame velocity. Your flame arrestor must be able to stop the flame and withstand the enormous pressures caused by explosions within the confined piping.  It must also be able to absorb the flame’s heat much faster than is required by standard low-to-medium-pressure conditions, as well as being structurally superior to standard low-pressure deflagration arrestors.

In order to safeguard workers in the metalworking industry, Imperial Systems tested our CMAXX Dust Collection System numerous times with the DeltaMAXX IDA filters.  In all tests across the board, each filter was able to isolate the flammable dust and completely stop a flame front consistently every time.   

For more information, contact Imperial Systems today at 800.918.3013.

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