This is a blog post regarding piercing nozzles, especially as they pertain towards use in residential structure fires.
Under the right circumstances when a fire is compartmentalized and isolated in a confined space, using a piercing nozzle for extinguishment is safe, quick and efficient.
The piercing nozzle throws a 25-foot diameter, umbrella-type, spray pattern which, when converted to steam, can cover a 2,400 square foot area with dense fog. The steam cools the temperature of the fire gases, reducing the heat. It also cools the temperature of the fuel and displaces oxygen, thus smothering the fire.
In live fire tests conducted by the Hoquiam (Wash.) Fire Department, a fully-involved, normal-sized, room fire in a house was extinguished by a piercing nozzle in 6-8 seconds using 3-5 gallons of water. Again, under the right circumstances, using the piecing nozzle is excellent for booster tank attacks when there are a limited number of personnel or when the water supply is limited, delayed, or unavailable.
Read more about this at; piercing-nozzle-can-be-among-the-most-effective.html
Read more about this at; piercing-nozzle-can-be-among-the-most-effective.html
There are quite a few variations of piercing nozzles on the market. Have a look...
Fyrestick - $879 - Invented in Billings, MT -https://www.youtube.com/watch?v=RVTHk85gD08
First Attack - https://youtu.be/mKJObsukXx0
and More;
Fyrestick - $879 - Invented in Billings, MT -https://www.youtube.com/watch?v=RVTHk85gD08
First Attack - https://youtu.be/mKJObsukXx0
and More;
 |
| Boom truck |
How about put a piercing nozzle on a boom on a firetruck? Check it out;
https://youtu.be/Z5a7foK88DQ
Some information on tactics:
A piercing nozzle, particularly if fed by Class A foam or compressed air foam, may be a particularly effective tool on attic fires if it’s pushed through the ceiling and flowed into the attic from below. These nozzles can provide a widely distributed flow of the suppression agent, reaching all around the attic space. For larger buildings, such as garden apartments, two or more of these nozzles placed under a trench cut can make an awesome firebreak, stopping horizontal fire spread. Remember: When applying water overhead, you’re adding weight to the ceiling, which can increase the potential for a ceiling collapse.
Read more about it at; ReadMore
https://youtu.be/Z5a7foK88DQ
Some information on tactics:
A piercing nozzle, particularly if fed by Class A foam or compressed air foam, may be a particularly effective tool on attic fires if it’s pushed through the ceiling and flowed into the attic from below. These nozzles can provide a widely distributed flow of the suppression agent, reaching all around the attic space. For larger buildings, such as garden apartments, two or more of these nozzles placed under a trench cut can make an awesome firebreak, stopping horizontal fire spread. Remember: When applying water overhead, you’re adding weight to the ceiling, which can increase the potential for a ceiling collapse.
Read more about it at; ReadMore
More tactics at; http://www.targetsolutions.com/featured-contributors/strategic-tactical-and-task-level-considerations-for-attic-fires/
and
http://www.firerescuemagazine.com/articles/print/volume-9/issue-7/firefighting-operations/using-alternative-attack-devices-for-concealed-space-firefighting.html
and
http://www.firerescuemagazine.com/articles/print/volume-9/issue-7/firefighting-operations/using-alternative-attack-devices-for-concealed-space-firefighting.html
Tactics on Attice fires without piercing nozzle - video from fdcam.
There is quite a bit of research on the science of attic fires.
NIST - Simulation of an attic fire in a wood frame residence This involved a FF LODD.
The new Canadian National Fire Information Database is now available. I can't wait to get access and map out where all the fires are happening. Check out these stats - chimney fires (heating) are actually quite low according to stats.
There is quite a bit of research on the science of attic fires.
NIST - Simulation of an attic fire in a wood frame residence This involved a FF LODD.
The new Canadian National Fire Information Database is now available. I can't wait to get access and map out where all the fires are happening. Check out these stats - chimney fires (heating) are actually quite low according to stats.
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