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.
[BLANK_AUDIO] [MUSIC] Hi, i'm Eric Roden. >> 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 Training Minutes, filmed at FDIC, 20 eleven, hands on training program. >> These training minutes are based on the urban essentials. The largest [INAUDIBLE] class at FDIC. Come visit us at UrbanFirefighter.com. [NOISE] >> Hi, welcome to training minutes. I'm Lt. John Ceriello from 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 onto a fire in a high-rise building when we're out of reach of any exterior streams. Be it from a tower ladder, or the ground, or an adjoining balcony. Let's take a detailed look at this device. If we look here. Is roughly an 8 foot long piece of 1 1/2 inch tubular aluminum. On this end, we have a simple 2 1/2 inch ball valve. Here we have a T-Handle welded in place and gives us some maneuverability of the nozzle when it is 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's flowing. That keeps it nice and tight, and allows to control that stream. At the far end, at the tip, we have an inch and an eighth tip. So with the two and a half inch line, and inch and an eighth tip, that's the same combination of hose and nozzle we use in our standard high rise packs. It also won't allow any clogging factor to occur. Also in our, in our testing on Governor's Island in 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 downstream. The fog tip was not as effective as the solid board tip. The high rise nozzle is 14 pounds. It's easily transported in elevators and up stair wells. [MUSIC] To employ 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 watered. 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 spanger wall between the floor below window, and the fire window, or the target window. At that same time, with the water hitting the spanger wall, it will rain down and you'll hear the actual nozzle or stream hitting that spanger wall. You continue to push out until the sound disappears and the water is no longer raining down. At that point, you know that you're, the stream is in the window hitting the ceiling above the fire knocking the fire down. The engine company can wiggle a 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. [SOUND] 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 type of challenging fires. I'm Lieutenant John Ceriello. Thank you for watching Training Minutes.