Clean Agent Systems: Trending Options for Localized Fire Suppression

Posted by Zach Nelson on Dec 10, 2015 8:00:00 AM

Watch Lee Kaiser speak about trending technology in clean agent fire suppression. In the video excerpt below, you can watch as he describes trending options for localized clean agent fire suppression systems. 

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There is much more information available in the full video than we will be releasing in our blog series. Don't miss out! If you'd like to watch the entire Trending Technology Clean Agent Systems portion of the seminar, click here to receive the full video. 


Local application can be done, with these small systems, in either a rate by volume or rate by area. So, rate by volume is where I have a given volume within a larger room, and I'm just gonna provide enough agent to flood that volume of space and so I can have different options with rate by volume application in the small systems. I can protect spaces up to 300 cubic feet with clean agents, gets a little larger for CO2, and the largest systems can be with dry chemical.

I can also do rate by area protection where I provide enough agent for a burning area within a space, where it just has a flat area usually containing some sort of flammable or combustible liquid, and then when it catches on fire I want to discharge just enough agent to extinguish the fire on the surface of that fuel. And so we're limited to 100 square foot of fuel surface, typically using CO2. And so, this picture shows us where we might be doing rate by volume protection in a cabinet, and this would be a picture of rate by area protection, just over this burning surface inside of this pan that has a combustible liquid within it. These are all pre-engineered systems, so we follow the manufacturer's guidelines for installation and then we wind up with a listed system.

Cylinder and tube systems are the typical way that we do these small systems. They include a detection tube that is both combination detection and suppression. And so the tube just looks like a little flexible, three-eighths diameter tube and it gets routed from a cylinder through the volume that we're protecting. Imagine that this is like an electric cabinet and we're routing this back and forth. When the fire starts, the flames impinge on that tube and it melts at around 212 degrees. When it melts, it forms a little nozzle and allows the agent to flow out of that, right to the space. So, it does both the detection and the suppression from that tube. And that's really called a direct system.

But we also have an indirect system where we just use the tube for detection, and we use a different tube for suppression to direct the agent to a nozzle. And that's pretty typical for CO2 systems.

This is part 7 of the Trending Technology Clean Agent Systems series. Watch the other parts at the links below:

You can also watch our previous series on Dialer and Communicator Technology Changes at the links below:

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Topics: Clean Agent, Technology Changes

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