FAQ: Can I place a dust collector inside the facility if we are handling a material with a high Kst?

Yes, a dust collector can be placed inside the confines of a facility even though it may have a relatively high deflagration index (Kst). Both explosion venting and chemical suppression may be options depending on the location of the collector within the facility and its vicinity to an outside wall or ceiling.

Explosion venting can be selected if the dust collector's locale in the facility is within acceptable ducting distance limits as dictated by NFPA 68 calculations. Venting can be accomplished either horizontally or vertically depending on existing space restrictions and utility obstructions that may exist. There is also a flameless venting option available that allows the deflagration to vent inside the facility. This method extinguishes the flame from the vented explosion not allowing it to exit the device.

Chemical suppression (and chemical isolation for the ducting) is the preferred method of deflagration protection for hazardous materials. Explosion suppression systems are designed to detect and chemically suppress an explosion in its earliest stages - before an explosion can cause a disaster or become catastrophic. This prevents the flame and material from being released from the collector into the surrounding environment, protecting personnel and property.

- For more information, read the informative article, Asking the Right Questions About Cartridge Dust Collection. Another relevant article is Five Ways New Explosion Venting Requirements For Dust Collectors Affect You.