Tue, 18 Oct 2011|
Lieutenant John Ceriello of the FDNY demonstrates the high-rise nozzle, which allows firefighters to get water on a fire in a high-rise when an external stream is not available.
[MUSIC] [NOISE] >> Hi. I'm Erik Rodin. >> And, I'm Ray McCormack. And, we're the publishers and editors of Urban FireFighter Magazine. >> We'd like to welcome you to this segment of Fire Engineering's Training Minutes, filmed at FDIC 2011 Hands-on Training program. >> These Training Minutes are based on the Urban Essentials. The largest heart class at FDIC, come visit us at urbanfirefighter.com. [SOUND] [MUSIC] Hi, welcome to training minutes. I'm Lieutenant John Ciriello from the New York City Fire Department. This segment, we're gonna take a look at the high rise nozzle. A device that enables the fire service to get water on to a fire, in a high rise building. When we're out of reach of any exterior streams, be it from a towel ladder, or the ground, or adjoining balcony. Let's take a detailed look at this device. If we look here. Is roughly an eight foot long piece of one and a half inch tubular aluminum. On this end we have a simple two and a half inch ball valve. Here we have a t handle welded in place. It gives us some maneuverability of the nozzle when it's in place flowing water into the floor above where the fire is located. Here we have a trussing system which gives rigidity to this pipe because we're gonna get a tremendous amount of downward force when the nozzle is flowing. That keeps it nice and tight and allows it to control that stream. At the far end, at the tip, we have an inch and an eighth tip. So with a two and a half inch line an inch and an eighth, that's the same combination of hose and nozzles we use in our standard high rise packs. It also, wont allow any clogging factor to occur. Also in our testing on Governor's Island 2008, we actually found that, the solid board tip, flowing in and hitting the ceiling of the fire room, basically turning on a sprinkler head, knocked the fire down rapidly, cooling everything down stream. The fog tip was not as effective as a solid board tip. The high rise nozzle is 14 pounds. it's easily transported in elevators and up stairwells. To deploy the high rise nozzle the engine company simply has to place the nozzle on the window sill, give it a slight tilt to one side, and when ordered. Open the nozzle. The water will begin to flow, hitting the side of the building, adjacent to the window. Slowly, that company will push the nozzle out. And at the same time, begin to bring the nozzle square up, pointing straight up. The stream now should be hitting the [UNKNOWN] wall between the floor below window and the fire window, or the target window. At that same time, with the water hitting expansion wall, it will rain down and you will hear the actual nozzle or the stream hitting that spansure wall. You continue to push out till the sound disappears and the water is no longer raining down. At that point, you know that the stream is in the window, hitting the ceiling above the fire, knocking the fire down. The [UNKNOWN] company can also wiggle the nozzle, which will disperse more water in the fire area. After roughly, 30 seconds, they can then shut down, and as they shut down, slightly tilt the nozzle to the side so a water slug does not hit them, on the floor below. And then we look for conditions on the fire floor, if they've changed. And we've knocked the fire down. [MUSIC] There will be times a direct frontal attack will not be capable in these types of buildings, in high-rise buildings. So, this device will actually allow us to get some water on the fire from the floor below, again making for a much safer operation in these types of challenging fires. I'm Lieutenant John Cirello. Thank you for watching Training Minutes.