When I was in college somebody used a lighter to burst one of these things in my dorm. It ended up dripping through 8 stories of the building, including a radio station and an urban outfitters located below, and if I recall correctly, doing $20,000's of damage. And that was just one sprinkler going of in the building. It took the building hours to deal with the problem, and we had to spend the night in the lobby of an apartment building across the street.
also in a wet system, the water inside will be absolutely filthy to the point where it is black due to sitting in piping for what is most likely years on end.
The point that he missed was that dry systems are mainly installed to prevent sludge and rust in the stagnant pipes from blocking the heads. Her in the UK, wet systems are flushed through by the service engineer at least once a year.
Everything he said is 100% correct! one other thing is that when the sprinkler's activate, it trip a device called a water flow switch. When that switch is activated is activated the fire alarm system.
@dnews The bulbs pictured in the video are called "frangible bulbs". Fusible links that Trace said, are small pieces of metal that have a low melting point, thus they melt and release the suppression agent. Great video though! -Firefighter in NC
Red isn't the lowest bursting sprinkler head, it's orange; it bursts at 135 degrees. Red is simply the most common used for residential and commercial applications. Also black sprinkler heads aren't rated for 650 degrees, they're rated for 500. Most heads that you see in warehouses are usually green and occasionally blue.
Dry systems are not empty, they have pressurized air inside the pipes. When a sprinkler head goes off, the air-pressure inside the pipes drop dramatically telling the system to open the valve for water.
True. The air pressure is what's keeping the valve closed and the water pressure behind the valve is what's trying to open the valve. When the air pressure drops, the water pressure becomes stronger and opens the valve through simple force.
Reccaman from what i have been told, if the element in the fire sprinkler is clear it has something to do with the ambient temperature/sunlight. You can google this (simplex) there is no sprinkler that comes factory with no identifying color. I have also been told that if you put the “clear element “ in a cool place the color will come back
Great video. Actually really wondered about this. Can we get more videos on black holes and stuff related? Always a great topic. Especially with all the new stuff being attempted to study them, like the first photographic sightings being done.
how a sprinkler really works is theres a heat sensitive liquid inside a tiny glass tube and builds up pressure and explodes breaks a vacuum tube witch lets water flow water though or it breaks and lets water inside the tube flow down and the tip makes it a spinkler
my dad is a carpenter for over 40 years most of the time was construction of buildings or remodel of buildings and he told me before 1930 all sprinkler for deluge just like he talked about an airport hangars but in the 19 1930s they started doing me pressure pipe and only released where there was a fire
A way to escape using the realistic sprinkler method is after popping the sprinkler, make the people chasing you wait for the fire alarm to go off while you're able to get away
The main purpose of them is so you have a much higher chance of getting out alive. Most cases they will put out or seriously hinder a fire, but their purpose is life safely, not saving the building. The flood damage is typically higher than the fire damage when these systems activate. Hence, almost always, the fire system does more building damage than the fire.
I wonder if the "classic" sprinkler heads with a gallium plug are still in use? Gallium, a metal related to aluminum, melts at about 85 degrees Fahrenheit, so a plug of gallium would melt and release the valve when the temperature at the ceiling reaches that value.
Smoke alarms work by 'seeing' the particles in the smoke when it enters their sensing chamber. The particles will either interrupt or scatter a light beam (photoelectric), or in the ionization type devices, cause a disruption in the ion field. The disruptions are sensed as changes in electrical current to activate the device. CO2 which is carbon dioxide is naturally occurring from us breathing etc and is a gas. CO which is carbon monoxide, is created when carbon based fuels like wood, gas, propane etc are burned without enough oxygen. That too is a gas and a different sensing system is required to pick it up.
To add, the water that comes out of wet systems is also laden with oil that was used to cut and tread the original piping. This "water" is black and smells like oil. It may save your building, but everything that is under that particular head will be all but ruined.
Hay Trace tell me about LPG, Production, Liquefaction, Transportation sply over seas, and problems while carrying it and preventive measures, discharging, and end users consumption
I really hate the person who decided it was a good idea to put the subtitles in a yellow frame. When I see a shiny colour (like the yellow in the frame) contrasted with another bright colour (like white) it gets borrowed, I can barely see anything, and it tires my eyes so it hurts within a few minutes. Ty youtube developers!
I'm at a hotel and was wondering about this because i smoked.. something that rhymes with marine iguana, and noticed there was one inches from my head when i blew smoke out the window. now i know smoke doesn't effect them thanks :D
to add on. most newer sprinkler system's have a electric pump to build pressure. when the bead breaks the pressure will fall fast and a big electric or diesel pump starts up to produce low pressure but high volume off water. u can see this when it beaks u get a splash then a drip and then the big spray. as a bonus if u get a very small leak or a drip the small pump can sens that and warn the maintains team and not trip the big pump and the alarm.
SoY_FooD no, that is incorrect. You only get a fire pump if you do not have the pressure to support a sprinkler system. Nobody installs a $75,000 pump just because. Secondly, once the bulb or fusible link is broken you will immediately get the water pressure in the system. No drip and then big spray. If you are talking about a dry system, you will get whatever residual water may be in that system (probably just a mist) from testing and then you will get whatever pressure the dry valve is holding back. But, yes you are correct about the jockey pump. This maintains the system pressure generally to within 10psi of the main fire pump. However, there is no warning that I’m aware of to the maintenance team unless they are seeing the jockey pump running excessively. The jock pump is supposed to run when it detects a loss of pressure.
Your bulb info is incorrect. Everything else was well done. Orange = 135, Red = 155, yellow = 175, green = 200, blue = 286, purple = 360, and black 400-500+. The Fusible links are: 165, 212, 220 and up.
It seems like they also wouldn't want all of the sprinklers to go off at the same time because they wouldn't want an entire building to get water damage if there was just a localized fire.
That as well as: 1) reduced pressure at the sprinkler head that is closest to the fire assuming it's the most remote from the water source 2) additional hazards for evacuation like slippery floors/stairs, energized puddles where the water may come into contact with the electrical system and poor visibility.
I figured this out when I was just a kid, granted I thought it was different hardnesses of wax that triggered at the right temperature. But that was only because I was too short to see them in detail.
did you seriously put the marker of Amsterdam on the other side of Europe? ...how about some geography lessons for the ones who animated and edited that part? :p
The biggest wildfire in Canadian history was the fort McMurray wildfire and it started 2 months ago and it's still going and I did evacuate fort McMurray
Lol. Close but all the facts aren't true here, do some research! I work for a fire sprinkler company as a fitter, I'm happy to hear somebody sees the lies in movies but a lot of his facts are wrong and he doesn't understand. There is air in a dry system compressed not nothing, in a pre-action system which he doesn't discuss can have no air but generally has compressed air also.
Pre-action system has no water in the pipes (dry pipe), and the air is not compressed. The system is initiated when a device like a smoke detector is activated. That sends a signal to the panel which then causes a solenoid valve to open and allow water into the pipes. That water sits and if there is a fire, the sprinkler head closest to it will open causing the water to be discharged. After the fire is out and the all clear is given, the supply valve is closed, the system is reset and the solenoid valve is allowed to close. The system is drained and the sprinkler heads that were opened are replaced before putting the system back into service. If there is no fire and the all clear is given, the panel is reset. The solenoid valve is closed and the system is drained before the system is put back into operation.
When I get a house, I'm gonna have it built like a commercial building. A building built of 2x4s is asking for trouble and fire. Your average house is like a pile of twigs.
That undershirt is quite the fashion statement -- not in a good way. Trace is unkempt and unprofessional. AT&T DigitalLife should get their money back.
You forgot one important thing... which is that once on. It does NOT stop until all the water in the tank on the roof or whatever is used up. Ergo, taking a hammer to one of them like a prank. Can be a very, very costly prank that might make you a debt slave for a long time.
Why aren't sprinkler systems electronic like fire alarms? This system seems like a slow process and it is! Couldn't it prevent more damage if it activates as early as the alarm?
People install these systems due to the lower cost. It is a very false economy, particularly when they trigger accidentally. Some insurance companies exclude water damage in areas remote from any fire area.
That would happen only with a deluge system where the heads are all open. With a deluge system, the pipes are dry and when a fire detector like a heat or smoke detector activates, a solenoid valve opens to allow water into the system. Residential buildings would use a combination of wet or dry pipe systems and not a deluge system. A deluge system would be used in high hazard occupancies like a saw mill where there is a lot of combustible dust laying around. The dry pipe systems use closed sprinkler heads like the wet pipe system and have compressed air to hold the valve closed. Those would be used in colder locations like the parking garage which may not be heated properly in colder climates to prevent the system from freezing up. The heated areas in the building would use a wet pipe system. Both these systems don't have every sprinkler head going off at the same time. Only the ones that were closest to the fire would be activated. The only way all the sprinklers in your building would go off at the same time is if someone was running around breaking them or using a heat source to pop them.
Nerd_World in a wet system yes. I'm not sure about a dry one. But honestly a sprinkler head would be the last of my concerns after a fire took place in my place.
@@WooferCooker Same with the dry pipe system. All closed sprinkler heads that are used in dry pipe, wet pipe and pre action systems are one time use and need to be replaced after they're activated. That bulb (fusible link in the older style heads), is called a thermal element and is designed to break when exposed to heat exceeding its temperature rating. The sprinkler heads in a deluge system though are open heads (no thermal element or bulb), and don't need to be replaced.
some warehouses where I live don't have air conditioner units and the temperature can get up to 120 F so I'm sure the ceiling gets even hotter so you'd want a sprinkler for a higher temperature
Also some factories have machines which produce lots of heat, so thats also a reason. Or else the sprinklers will go off every time you use that machine.
sometimes you want a sprinkler head to go off at a higher temperature so you do not have too many go off at the same time. if you have to many go off at the same time there will not be enough water pressure to get the required water density out of the sprinkler heads and on the floor to effectively control the fire. ( I do this for a living)
There are many factors involved. The occupancy hazard which is determined by the amount and type of fuels is one example. Different fuels have different temperatures when burning. As for preventing the fire, the water coming out would cause water damage. Fire prevention is done through other methods like safety procedures, maintenance etc. The sprinklers are there in case the prevention doesn't work and it hits the fan.
And the stupid out there will use sprinkler heads to hang clothes hangers on. Yep, seen it. Some hotels/motels have had to install signs to tell the stupid not to to use the sprinklers that way.
I am pretty proud of myself. I figured this out on my own working in a sbarros pizza in the mid 2000's. We had a low ceiling where you could touch one of the heads and I realized that they are independent of each other. I did however think they used a wax rod and not a glass tube but I was close.
Trigger warning, Trace said hotties. Cue the onslaught of comment section SJWs talking about how sexist and demeaning that phrase is when it was really a science pun.
It depends who one asks and to what time period this is referring to, but the city had many names. en.wikipedia.org/wiki/Constantinople#Names_of_Constantinople
The glass is clear. It's the fluid inside that's colour coded to identify the temperature rating of the sprinkler head. That expands and breaks the glass bead to allow a small piece blocking the orifice to fall away to allow the water to flow out.
There are different types of systems in data centers. Inert gas, halon, clean agents and water mist systems. The halon is banned because it destroys the ozone layer. Water mist systems can be used as they produce very fine water droplets that will cool down the air and not cause issues with the electrical equipment.
Well it was probably old. Those beeds have a life span and can weaken after a while. The glass can weaken or the liquid inside can break down causing the glass to break. Or it could have been a faulty sprinkler.
We had one go off in the school's nightclub without apparent cause as well. Apparently the water was very dirty after sitting stagnant for 15 years since the system was constructed.
Melissa0774 We have one nightclub and 18 pubs on campus. One pub is run by staff hired by the student union the rest are run by the students for the students.
@@bradmatthews-barfootthomps5197 It would take a lot for that to happen. Generally if someone were to paint the sprinkler head which could glue the head closed and mess up the temperature rating. Otherwise, they're pretty reliable.
there are specialty sprinkler systems called preaction systems that can have smoke detectors that are interlocked to the sprinkler valve. the system is normally dry but when smoke is detected the valve is "tripped" (opens) and the system floods with water, but the bulb in the sprinkler head or solder has to melt/break before any water is released. they use these systems where they are worried about any water damage from leaky pipes or accidental discharge from mechanical damage to the sprinkler. So in short kinda. (I am a journeyman sprinkler fitter)
The sprinkler heads themselves are activated only by heat. Systems like the deluge or the pre-action though can be connected to smoke detectors that send a signal to a solenoid valve that will open and allow water to enter the system.
That flame on Amsterdam was only about a 1000km off.
lol
Just wanned to say that
They put it on Poland.
Julian Klimczyk
more like Russia (Kaliningrad)
And it barely touches Istanbul!
When I was in college somebody used a lighter to burst one of these things in my dorm. It ended up dripping through 8 stories of the building, including a radio station and an urban outfitters located below, and if I recall correctly, doing $20,000's of damage. And that was just one sprinkler going of in the building. It took the building hours to deal with the problem, and we had to spend the night in the lobby of an apartment building across the street.
now imma go around looking at the colors of the fire sprinklers lol
SAME AND ALL THE TIME
So in a movie you're better off just hitting the glass with the lighter rather than creating a flame…
Yeah you can do that.
Karol Bała ههه
i habe a small collection of different heads. and temps
also in a wet system, the water inside will be absolutely filthy to the point where it is black due to sitting in piping for what is most likely years on end.
Which is why the system needs to be flushed every two years. It can foul a sprinkler head and interfere with its operation.
Thank you for finally using Celcius in your videos :)
what is celcius?
imperial peasant
+Erdem Kostik it's spelled Celsius you commie fuck. That's how you spell it in the US atleast...... Shit.
ahahah.... thanks?
i install fire sprinkler systems! it's awesome that DNews mentioned things that i do every day!
im a 3rd year in calgsry alberta canada ! lol
the temps on the bulbs and hazards classes they talk aboit are wrong lol
Same here, I install these for living too :) a lot of people, even the other construction workers have no idea how these systems work in real life
That must be sad, depressing, boring job
The point that he missed was that dry systems are mainly installed to prevent sludge and rust in the stagnant pipes from blocking the heads.
Her in the UK, wet systems are flushed through by the service engineer at least once a year.
Everything he said is 100% correct! one other thing is that when the sprinkler's activate, it trip a device called a water flow switch. When that switch is activated is activated the fire alarm system.
@Aslin Fire Safety most designers dont understand dry systems at my company either
Note to self: Ignore the temptation to break the bead in your dorm room
@dnews The bulbs pictured in the video are called "frangible bulbs". Fusible links that Trace said, are small pieces of metal that have a low melting point, thus they melt and release the suppression agent. Great video though!
-Firefighter in NC
they are also called solder link
Red isn't the lowest bursting sprinkler head, it's orange; it bursts at 135 degrees. Red is simply the most common used for residential and commercial applications. Also black sprinkler heads aren't rated for 650 degrees, they're rated for 500. Most heads that you see in warehouses are usually green and occasionally blue.
Do you have any videos of "How does it feel to fall unconscious?"
If not, plz make a video about it.
Get intoxicated?
Tell somone to knock you out
Not good.
+Luna Pacheco You're confused. The question is not what being unconscious feels like, but what falling unconscious feels like.
"Simple Physics" = "Rocket Science" To Most
Great explanation of the system and fast. I have learned a lot from you. Thank you!
Dry systems are not empty, they have pressurized air inside the pipes. When a sprinkler head goes off, the air-pressure inside the pipes drop dramatically telling the system to open the valve for water.
True. The air pressure is what's keeping the valve closed and the water pressure behind the valve is what's trying to open the valve. When the air pressure drops, the water pressure becomes stronger and opens the valve through simple force.
Oh lawd Jesus there's a fire.
Aint nobody got time to look for the color of the small glass vials
Very informative. Im in a hotel room and wondered “how does that work” found this video and now I know
-__- Seriously people. Stop commenting before finishing the video. Is this what America became? A comment first competition?
+Jamil that was so passive aggressive lol😂
+Jamil LMAO
lol
+Jamil I am going to take that as a compliment XD
stfu
being from the military I know this is all true, but we have the that melts is clear. is that miltary only or is is a different temperature?
Reccaman from what i have been told, if the element in the fire sprinkler is clear it has something to do with the ambient temperature/sunlight. You can google this (simplex) there is no sprinkler that comes factory with no identifying color. I have also been told that if you put the “clear element “ in a cool place the color will come back
Is it true that no building properly equipped with sprinklers had a fire run out of control?
Very informative! Thank you! 🤴
Great video. Actually really wondered about this. Can we get more videos on black holes and stuff related? Always a great topic. Especially with all the new stuff being attempted to study them, like the first photographic sightings being done.
Being a fire sprinkler fitter, good job on this one
how a sprinkler really works is theres a heat sensitive liquid inside a tiny glass tube and builds up pressure and explodes breaks a vacuum tube witch lets water flow water though or it breaks and lets water inside the tube flow down and the tip makes it a spinkler
No vacuum in a sprinkler system. Just positive pressure.
my dad is a carpenter for over 40 years most of the time was construction of buildings or remodel of buildings and he told me before 1930 all sprinkler for deluge just like he talked about an airport hangars but in the 19 1930s they started doing me pressure pipe and only released where there was a fire
That is not true. Airport hangers are a different animal.
A way to escape using the realistic sprinkler method is after popping the sprinkler, make the people chasing you wait for the fire alarm to go off while you're able to get away
I always meant to get round to researching the true answer.. Thank you .. now that is one I can now tick of my list.
"DNEWS" is by far one of the most informative channels on UA-cam. Keep up the great work! I'll be a subscriber for life!
😍😍😍
you forgot about drama alert
Nice historic review and explanation of the standard fire sprinkler heads. Good review.
Sprinklers scare me to death. I will scream and cry if a sprinkler sprayed water!
Same girl. But I'm glad that they don't turn on together.
I'm always scared on vacation because every hotel bathroom I've been in has one and the ceilings are low
I'm always so afraid I'll hit one
The main purpose of them is so you have a much higher chance of getting out alive. Most cases they will put out or seriously hinder a fire, but their purpose is life safely, not saving the building. The flood damage is typically higher than the fire damage when these systems activate. Hence, almost always, the fire system does more building damage than the fire.
Fixing a flooding building is better than losing the entire building in most cases
Deluge systems like you see in movies are very rare. I’ve only ever seen one in years working in fire safety.
ive installed well over 10.
Could you still set the system off by, say, bludgeoning or shooting one of the sprinklers itself?
ilovethelegend ye
Is there a video about smoke alarms by DNews? I already know how they work, but it would make a neat video for those who don't.
*Claps* I gotta give you credit for coming up with this video idea!
I wonder if the "classic" sprinkler heads with a gallium plug are still in use? Gallium, a metal related to aluminum, melts at about 85 degrees Fahrenheit, so a plug of gallium would melt and release the valve when the temperature at the ceiling reaches that value.
I always Wondered How!
Thanks
Cinou Ayyyeee!! hi
" A sprinkler system out in the wild" hahaha. i love it ^_^
Guess the name of this movie with the following quote "The pool on the roof must have a leak"
Should of included how smoke alarms work, how does it know there is lots of CO2 or whatever in the air?
Smoke alarms work by 'seeing' the particles in the smoke when it enters their sensing chamber. The particles will either interrupt or scatter a light beam (photoelectric), or in the ionization type devices, cause a disruption in the ion field. The disruptions are sensed as changes in electrical current to activate the device.
CO2 which is carbon dioxide is naturally occurring from us breathing etc and is a gas. CO which is carbon monoxide, is created when carbon based fuels like wood, gas, propane etc are burned without enough oxygen. That too is a gas and a different sensing system is required to pick it up.
To add, the water that comes out of wet systems is also laden with oil that was used to cut and tread the original piping. This "water" is black and smells like oil. It may save your building, but everything that is under that particular head will be all but ruined.
ss4u2nv you can flush the system via a flow valve at the end of the run
Hay Trace
tell me about LPG, Production, Liquefaction, Transportation sply over seas, and problems while carrying it and preventive measures, discharging, and end users consumption
I really hate the person who decided it was a good idea to put the subtitles in a yellow frame. When I see a shiny colour (like the yellow in the frame) contrasted with another bright colour (like white) it gets borrowed, I can barely see anything, and it tires my eyes so it hurts within a few minutes. Ty youtube developers!
I'm at a hotel and was wondering about this because i smoked.. something that rhymes with marine iguana, and noticed there was one inches from my head when i blew smoke out the window. now i know smoke doesn't effect them thanks :D
ukickmeikicku there can still be smoke detectors in the room, and most hotels have strict rules against smoking, but vaping may be ok
Much improved articulation!
Awesome thanks for the knowledge 😊
3:26 Trace, your hair is almost exactly the same.
Does a sprinkler has to be replaced after it has been used?
deepvybes yeah
I install these all day long
Didn't know you could find Amsterdam in Poland?
...
to add on. most newer sprinkler system's have a electric pump to build pressure.
when the bead breaks the pressure will fall fast and a big electric or diesel pump starts up to produce low pressure but high volume off water.
u can see this when it beaks u get a splash then a drip and then the big spray.
as a bonus if u get a very small leak or a drip the small pump can sens that and warn the maintains team and not trip the big pump and the alarm.
SoY_FooD no, that is incorrect. You only get a fire pump if you do not have the pressure to support a sprinkler system. Nobody installs a $75,000 pump just because. Secondly, once the bulb or fusible link is broken you will immediately get the water pressure in the system. No drip and then big spray. If you are talking about a dry system, you will get whatever residual water may be in that system (probably just a mist) from testing and then you will get whatever pressure the dry valve is holding back. But, yes you are correct about the jockey pump. This maintains the system pressure generally to within 10psi of the main fire pump. However, there is no warning that I’m aware of to the maintenance team unless they are seeing the jockey pump running excessively. The jock pump is supposed to run when it detects a loss of pressure.
Now I can be that asshole in the theaters yelling "fake!".
could you please elaborate on working of sprinkler having inert gases or foam
Your bulb info is incorrect. Everything else was well done. Orange = 135, Red = 155, yellow = 175, green = 200, blue = 286, purple = 360, and black 400-500+. The Fusible links are: 165, 212, 220 and up.
It seems like they also wouldn't want all of the sprinklers to go off at the same time because they wouldn't want an entire building to get water damage if there was just a localized fire.
That as well as:
1) reduced pressure at the sprinkler head that is closest to the fire assuming it's the most remote from the water source
2) additional hazards for evacuation like slippery floors/stairs, energized puddles where the water may come into contact with the electrical system and poor visibility.
I figured this out when I was just a kid, granted I thought it was different hardnesses of wax that triggered at the right temperature. But that was only because I was too short to see them in detail.
you know what happened in canada ft mcmurry the city burned and it is still happining
did you seriously put the marker of Amsterdam on the other side of Europe?
...how about some geography lessons for the ones who animated and edited that part? :p
i guess a sprinkler guy was at the dnews offices..
The biggest wildfire in Canadian history was the fort McMurray wildfire and it started 2 months ago and it's still going and I did evacuate fort McMurray
Lol. Close but all the facts aren't true here, do some research! I work for a fire sprinkler company as a fitter, I'm happy to hear somebody sees the lies in movies but a lot of his facts are wrong and he doesn't understand. There is air in a dry system compressed not nothing, in a pre-action system which he doesn't discuss can have no air but generally has compressed air also.
@@SPRlNK words of a fitter that cant explain it himself
Pre-action system has no water in the pipes (dry pipe), and the air is not compressed. The system is initiated when a device like a smoke detector is activated. That sends a signal to the panel which then causes a solenoid valve to open and allow water into the pipes. That water sits and if there is a fire, the sprinkler head closest to it will open causing the water to be discharged. After the fire is out and the all clear is given, the supply valve is closed, the system is reset and the solenoid valve is allowed to close. The system is drained and the sprinkler heads that were opened are replaced before putting the system back into service.
If there is no fire and the all clear is given, the panel is reset. The solenoid valve is closed and the system is drained before the system is put back into operation.
When I get a house, I'm gonna have it built like a commercial building. A building built of 2x4s is asking for trouble and fire. Your average house is like a pile of twigs.
0:28 ...Fort Mcmurray... :(
Dry systems do have pressurized air in them
That undershirt is quite the fashion statement -- not in a good way. Trace is unkempt and unprofessional. AT&T DigitalLife should get their money back.
P.S. I certainly want to learn about more systems. Just not from Trace.
Pardon me?
lmao go get the fuck outta here. Edit: I can like my own comment too.
Someone needs to wash your mouth out with soap!
Haha
got up and walked around my building just staring at all the different sprinklers
Amaterdam is in Latvia?
It is possible to physically break the bead causing the system to activate?
NoM4D yeah it's glass
Definitely is. I've seen that done many times.
You forgot one important thing... which is that once on. It does NOT stop until all the water in the tank on the roof or whatever is used up. Ergo, taking a hammer to one of them like a prank. Can be a very, very costly prank that might make you a debt slave for a long time.
Why aren't sprinkler systems electronic like fire alarms? This system seems like a slow process and it is! Couldn't it prevent more damage if it activates as early as the alarm?
Our neighborhood houses have deluge systems, bc once my neighbors had a garage fire and all there sprinklers went off
People install these systems due to the lower cost. It is a very false economy, particularly when they trigger accidentally. Some insurance companies exclude water damage in areas remote from any fire area.
I want to know about zener barrier
I lived in a building where the sprinklers were all on one system. One day a neighbor broke one by accident and they all went off.
no
That would happen only with a deluge system where the heads are all open. With a deluge system, the pipes are dry and when a fire detector like a heat or smoke detector activates, a solenoid valve opens to allow water into the system. Residential buildings would use a combination of wet or dry pipe systems and not a deluge system. A deluge system would be used in high hazard occupancies like a saw mill where there is a lot of combustible dust laying around.
The dry pipe systems use closed sprinkler heads like the wet pipe system and have compressed air to hold the valve closed. Those would be used in colder locations like the parking garage which may not be heated properly in colder climates to prevent the system from freezing up. The heated areas in the building would use a wet pipe system. Both these systems don't have every sprinkler head going off at the same time. Only the ones that were closest to the fire would be activated.
The only way all the sprinklers in your building would go off at the same time is if someone was running around breaking them or using a heat source to pop them.
So does that mean that fire sprinklers aren’t reusable and have to be replaced after fires
Nerd_World in a wet system yes. I'm not sure about a dry one. But honestly a sprinkler head would be the last of my concerns after a fire took place in my place.
@@WooferCooker Same with the dry pipe system. All closed sprinkler heads that are used in dry pipe, wet pipe and pre action systems are one time use and need to be replaced after they're activated. That bulb (fusible link in the older style heads), is called a thermal element and is designed to break when exposed to heat exceeding its temperature rating.
The sprinkler heads in a deluge system though are open heads (no thermal element or bulb), and don't need to be replaced.
Exactly! That's with all closed type sprinkler heads. A deluge system uses open heads and those don't need to be replaced.
As an engineer, I approve this message!
Do fire sprinklers go off if a fire is cause by grease fire?
Of course it does, any sort of heat at the right temperature will trigger the sprinklers.
*anywhere in the northern hemisphere
btw, first, by coincidence...
thank you, outstanding, concise and comprehensive, go ahead and do more for the whole F.F. Systems
I have sprinklers in my house
For growing weed?
Why would you want to have it break at higher temperatures, wouldn't you want it to go off at the same temperature, you know, to prevent the fire?
some warehouses where I live don't have air conditioner units and the temperature can get up to 120 F so I'm sure the ceiling gets even hotter so you'd want a sprinkler for a higher temperature
Also some factories have machines which produce lots of heat, so thats also a reason. Or else the sprinklers will go off every time you use that machine.
sometimes you want a sprinkler head to go off at a higher temperature so you do not have too many go off at the same time. if you have to many go off at the same time there will not be enough water pressure to get the required water density out of the sprinkler heads and on the floor to effectively control the fire. ( I do this for a living)
There are many factors involved. The occupancy hazard which is determined by the amount and type of fuels is one example. Different fuels have different temperatures when burning.
As for preventing the fire, the water coming out would cause water damage. Fire prevention is done through other methods like safety procedures, maintenance etc. The sprinklers are there in case the prevention doesn't work and it hits the fan.
Nice shirt Trace !
And the stupid out there will use sprinkler heads to hang clothes hangers on.
Yep, seen it. Some hotels/motels have had to install signs to tell the stupid not to to use the sprinklers that way.
how much does our soul weigh and would our hearts weigh less with out our soul(living).? ill like to know about that.
I am pretty proud of myself. I figured this out on my own working in a sbarros pizza in the mid 2000's. We had a low ceiling where you could touch one of the heads and I realized that they are independent of each other. I did however think they used a wax rod and not a glass tube but I was close.
Trigger warning, Trace said hotties. Cue the onslaught of comment section SJWs talking about how sexist and demeaning that phrase is when it was really a science pun.
I see no such comments.
There's literally no comments like that.
You can just say İstanbul instead of Constantinople
How about air ducts in buildings being used as an escape route!
Metal is too thin and can't support the weight of an adult. Better to use the stairs.
We are all sitting looking at the sprinkler lol
This was 🔥
Are you being insulting?
It's not Constantinople, it is Istanbul.
yes
What is this "Istanbul"? All I see is Constantinople!
It depends who one asks and to what time period this is referring to, but the city had many names.
en.wikipedia.org/wiki/Constantinople#Names_of_Constantinople
It used to be Constantinople, before savages took it over. And it did burn before it was called Istanbul.
Istanbul, not Constantinople! Istanbul, not Constantinople!
Its heat. the color of the glass is the marker on the heat it will fall off and release water.
The glass is clear. It's the fluid inside that's colour coded to identify the temperature rating of the sprinkler head. That expands and breaks the glass bead to allow a small piece blocking the orifice to fall away to allow the water to flow out.
I miss getting 2 videos a day.
couldn't the glass shards cut someone or get in to someone's eye?
Shards are not big enough and generally, people are not usually looking up. That would be a one in a million shot.
I always though that the red was wax and that it melted to let the water out.
They use inert gas systems in data centers since water+ electricity=bad.
There are different types of systems in data centers. Inert gas, halon, clean agents and water mist systems. The halon is banned because it destroys the ozone layer. Water mist systems can be used as they produce very fine water droplets that will cool down the air and not cause issues with the electrical equipment.
Nah. one went off in my friend's apartment when there was not even a fire, candle lit, or the stove on. Ruined everything.
Well it was probably old. Those beeds have a life span and can weaken after a while. The glass can weaken or the liquid inside can break down causing the glass to break. Or it could have been a faulty sprinkler.
We had one go off in the school's nightclub without apparent cause as well. Apparently the water was very dirty after sitting stagnant for 15 years since the system was constructed.
your school has a nightclub?
Melissa0774 We have one nightclub and 18 pubs on campus. One pub is run by staff hired by the student union the rest are run by the students for the students.
Tim Jadeglans Where do you go to school at?
Have one of these in my room :)
i was at work flicking rubber bands at a sprinkler and broke the plastic part broke and started that sprinkler and i got fired
I work for a fire security company and trust me when a bulb breaks it’s not fun
Its better than death.
Have you come across sprinklers which have failed?
@@bradmatthews-barfootthomps5197 It would take a lot for that to happen. Generally if someone were to paint the sprinkler head which could glue the head closed and mess up the temperature rating. Otherwise, they're pretty reliable.
Are any sprinklers smoke-activated?
there are specialty sprinkler systems called preaction systems that can have smoke detectors that are interlocked to the sprinkler valve. the system is normally dry but when smoke is detected the valve is "tripped" (opens) and the system floods with water, but the bulb in the sprinkler head or solder has to melt/break before any water is released. they use these systems where they are worried about any water damage from leaky pipes or accidental discharge from mechanical damage to the sprinkler. So in short kinda. (I am a journeyman sprinkler fitter)
+Dakota Laine (Qube) thanks for your answer, that was awesome!
Trace Dominguez Cool, I didn't expect to receive a comment from you, Trace.
The sprinkler heads themselves are activated only by heat. Systems like the deluge or the pre-action though can be connected to smoke detectors that send a signal to a solenoid valve that will open and allow water to enter the system.