There is a kind of sprinkler system that activates all the sprinklers when only one is triggered. It consists of a dry pipe fitted with nozzles and a wet pipe with normal sprinklers. When a sprinkler in the wet pipe system activates and loses pressure, the dry pipe gets charged with water or foam from a pump, which flows out of the nozzles. This system is mandatory in garages in Taiwan, making it very common here.
The type of system you described is a deluge system, which is widely used not only in garages but also on theater stages and at hazmat storehouses. They not only respond quickly to fires but also prevent the combustion from spreading out.
Water deluge systems do exist, basically if any heat is detected anywhere then the entire system is activated, such as in high hazard areas where there are lots of combustibles. And the clip shown from the equalizer is a place where a water deluge system could be used, funny enough. A hardware store has tones of chemicals and combustibles! Although I have no idea if hardware stores usually use them, this might be one of the rare movies where this trope could actually makes sense.
If all sprinkles go at the same time, it's most likely a deluge system. It's triggered by a secondary (dry or wet) sprinkler system. The dry deluge pipe has open heads, the trigger system closed heads. When fire triggers a closed head, the air or water pressure drop opens the deluge valve, allowing water discharge thru all heads of that primary system.
I've head that there are nice systems, that increase the preassure in the pipes high enouth to break the glas tubes in the other sprinklers, but those are really seldomly used.
6:19 some fire sprinklers do go off all at once with the triggering of a smoke alarm (these are similar to dry pipe but are missing the bulb) I understand they're common on car carrying boats. [Another commenter pointed out they're called a deluge system] Deviant Ollam has a really great talk about fire code including in-depth explanations of *all* the sprinklers.
Thanks for the video, it is really interesting. Also I liked how with time sprinkler system has become as simple as possible compared to initial design.
Ummm... there is a 3rd type of system, which does trigger all the heads at once. This one doesn't have valves at each head, but instead is controlled by a valve or valves and is triggered manually by an activation panel or by a fire alarm system. It usually exists in manufacturing plants or places where dust or materials can get to a concentration and cause a dust explosion, and where if there is an issue in one place you do want the whole area wet down, not just the specific small area where there is a fire. It is not used in an office area, as that sort of area, the cost for remediation is too high to have them all trigger (replacing all the papers, furniture, computers, etc)
The only thing you failed to mention is that instead of nice clean water, what you get when a sprinkler is activated is the most foul smelling liquid you’ve even experienced spraying everywhere. The water has often been sitting up there since the buildings construction, and all the time turns it into something I pray no one ever experiences. I can still smell it.
Also, sprinklers must always be situated at the very top of the room, at a very close distance to the ceiling. That's because hot air from fire quickly rises, and stays at the very top part of the building volume, if the sprinkler is not there, it couldn't activate at needed time.
To fix the flickering: I think you can try to use a super big plane as the light source (assuming you haven't tried mucking with the denoising settings).
Good work on the fire sprinkler modelling! Learned a lot here, awesome stuff. I like the comparison of first patent invention vs modern. It really minimized parts complexity.
You forget about deluge system, with one pressurized air pipe and one dry pipe. The pressurized air pipe has the glasses and keeps air pressure up to keep a watervalve closed at the dry pipe. When one goes off al go off :). ( Used a lot in chemical factorys)
In high school, a class mate was practicing some basketball moves in the hallway. At some point they threw the ball hard enough to hit the ceiling, well it struck a sprinkler and broke the glass. Sure enough there’s absolutely no more sports happening in the halls outside the gyms.
There is another system I have seen on a boat where the pipes are filled with low pressure water but as soon as 1 sprinkler pops a high pressure pump activates the rest of them
I also don't get why, in a movie, they always search for a lighter to set off the sprinkler system when they're already holding something else that can easily break that glass bulb by simply smashing it, like a hammer or crowbar.
You're actually incorrect and tv shows are accurate that when one goes off, all go off. Some systems are designed to over pressure the liquid lines in order to burst all other ampules if the system notices a significant drop in pressure from one bursting.
@@Deconstructed_Animations also the thing that you forgot to mention about the wet pipe sprinkler systems is that because the water often just sits in the pipes for long periods of time until the sprinkler heads are triggered often the water that comes out initially is brown and gross from corrosion in the pipes
@@aeDoesThings I use audio technica m50x and never had problems with them also it would be weird if I had problems in only one video wouldn't it? Check out the bass difference between the beginning of this video and 2:50
I am probably way off base here. But I'm curious if dry systems are more prone to activating multiple sprinklers when only one sprinkler is tripped. I wonder if the transition from gas to liquid on an old system might cause some plugs to fail. Maybe even wet systems are prone to a similar failure point. So maybe that's where that 'hollywood' sprinkler scene comes from.
Channels like yours fill the hole in our hearts that Discovery Channel, TLC, and History Channel used to fill before they went all in on reality TV.
Most creators have gone onto Curiosity Stream... but that costs money. There is a distinct lack of documentaries on here these days :(
So true.
There is a kind of sprinkler system that activates all the sprinklers when only one is triggered. It consists of a dry pipe fitted with nozzles and a wet pipe with normal sprinklers. When a sprinkler in the wet pipe system activates and loses pressure, the dry pipe gets charged with water or foam from a pump, which flows out of the nozzles. This system is mandatory in garages in Taiwan, making it very common here.
The type of system you described is a deluge system, which is widely used not only in garages but also on theater stages and at hazmat storehouses. They not only respond quickly to fires but also prevent the combustion from spreading out.
Water deluge systems do exist, basically if any heat is detected anywhere then the entire system is activated, such as in high hazard areas where there are lots of combustibles. And the clip shown from the equalizer is a place where a water deluge system could be used, funny enough. A hardware store has tones of chemicals and combustibles! Although I have no idea if hardware stores usually use them, this might be one of the rare movies where this trope could actually makes sense.
If all sprinkles go at the same time, it's most likely a deluge system.
It's triggered by a secondary (dry or wet) sprinkler system.
The dry deluge pipe has open heads, the trigger system closed heads.
When fire triggers a closed head, the air or water pressure drop opens the deluge valve, allowing water discharge thru all heads of that primary system.
The amount of effort required for these videos is amazing
I LOVE your videos! I love learning how things work.
I never thought to question how fire sprinklers are triggered all together in movies!
Awesome animations!
I've head that there are nice systems, that increase the preassure in the pipes high enouth to break the glas tubes in the other sprinklers, but those are really seldomly used.
And in like high risk places you can trigger them manually 😊
These videos are incredibly well made and easy to understand
Awesome video. Really nicely done. And the Hollywood explanation at the end was golden. Thank you.
Heck yes, love your channel.
6:19 some fire sprinklers do go off all at once with the triggering of a smoke alarm (these are similar to dry pipe but are missing the bulb) I understand they're common on car carrying boats. [Another commenter pointed out they're called a deluge system]
Deviant Ollam has a really great talk about fire code including in-depth explanations of *all* the sprinklers.
I love this channel and the graphics and animations are incredible ❤
6:45 that's from Constantine. My first thought when you mention movie misconceptions
The Matrix (1999) too
Such an amazing job guys. Keep it up.
Thanks for the video, it is really interesting. Also I liked how with time sprinkler system has become as simple as possible compared to initial design.
Ummm... there is a 3rd type of system, which does trigger all the heads at once. This one doesn't have valves at each head, but instead is controlled by a valve or valves and is triggered manually by an activation panel or by a fire alarm system. It usually exists in manufacturing plants or places where dust or materials can get to a concentration and cause a dust explosion, and where if there is an issue in one place you do want the whole area wet down, not just the specific small area where there is a fire.
It is not used in an office area, as that sort of area, the cost for remediation is too high to have them all trigger (replacing all the papers, furniture, computers, etc)
CZcams channels like these are why I love youtube
Amazing video, love that you're adding the historical aspect as well!
just a comment for the algorithm
I'll see that and raise you another
Good.
Very well done
Great comment
No,
Wait…
You have to make a video showing dry fire sprinkler suppression systems...
Thank you!
Thank you too for the enlightenment
Informative video. Thanks !
Thanks from Italy!
Great info!
The only thing you failed to mention is that instead of nice clean water, what you get when a sprinkler is activated is the most foul smelling liquid you’ve even experienced spraying everywhere. The water has often been sitting up there since the buildings construction, and all the time turns it into something I pray no one ever experiences. I can still smell it.
Great video
The misconception is that when you pull the fire alarm, it activates the sprinklers...
Oh god yes it's this exactly. I said something fairly close but this one annoys me a lot more than actual fire setting off all of them.
Also, sprinklers must always be situated at the very top of the room, at a very close distance to the ceiling. That's because hot air from fire quickly rises, and stays at the very top part of the building volume, if the sprinkler is not there, it couldn't activate at needed time.
I happened to know all this, but your great explanation and animation got you a sub
Great video ❤
This is amaaaaaaazing video. I appreciate it. It help me a lot.
Best youtube channel
To fix the flickering: I think you can try to use a super big plane as the light source (assuming you haven't tried mucking with the denoising settings).
Awsome! Definitely learned something new! 😉
Great job, keep up the awesome work!
How about a follow-up on why different sprinkler heads have different temperature triggers?
very nice
this comment so that the algorithm helps this educational video instead of a drama one.
Nice
You guys are great!
Great !
Good work on the fire sprinkler modelling! Learned a lot here, awesome stuff. I like the comparison of first patent invention vs modern. It really minimized parts complexity.
Great job!❤❤
Informative video
Nice 👍
Good job!!
You forget about deluge system, with one pressurized air pipe and one dry pipe.
The pressurized air pipe has the glasses and keeps air pressure up to keep a watervalve closed at the dry pipe.
When one goes off al go off :). ( Used a lot in chemical factorys)
Movie myth: pulling fire alarm does not make springer release any water.
Wanna keep seeing these videos
In high school, a class mate was practicing some basketball moves in the hallway. At some point they threw the ball hard enough to hit the ceiling, well it struck a sprinkler and broke the glass. Sure enough there’s absolutely no more sports happening in the halls outside the gyms.
The Hollywood misconception is that when one goes off they all go off. Only the ones exposed to the heat go off. Often only one is activated.
There is another system I have seen on a boat where the pipes are filled with low pressure water but as soon as 1 sprinkler pops a high pressure pump activates the rest of them
Yes
I also don't get why, in a movie, they always search for a lighter to set off the sprinkler system when they're already holding something else that can easily break that glass bulb by simply smashing it, like a hammer or crowbar.
nice
cool video!
Adding to comment chain for algorithm.
They activate immediately after a fire
W content
You're actually incorrect and tv shows are accurate that when one goes off, all go off. Some systems are designed to over pressure the liquid lines in order to burst all other ampules if the system notices a significant drop in pressure from one bursting.
😊👍
the best things arise from people trying to solve real problems they actually have, but unfortunately that’s not profitable anymore
I think you meant pendant. Not pendent.
Thank you for pointing that out! The correct term is actually “pendent” in the context of fire sprinkler heads.
@@Deconstructed_Animations Really? I wonder how that came about?
@@Deconstructed_Animations also the thing that you forgot to mention about the wet pipe sprinkler systems is that because the water often just sits in the pipes for long periods of time until the sprinkler heads are triggered often the water that comes out initially is brown and gross from corrosion in the pipes
Great informative video but please normalize your audio. It is all over and I had to constantly watch over my volume.
Had no issues here, maybe your speakers are broken?
@@aeDoesThings I use audio technica m50x and never had problems with them also it would be weird if I had problems in only one video wouldn't it?
Check out the bass difference between the beginning of this video and 2:50
For the algorithm
And here I was, smug that I knew the answer to the Hollywood sprinkler myth. I stand corrected!
Completely eliminating the air bubble? Unless the bubble dissolves in the liquid, the bubble should just get smaller as the pressure increases
the raytracing noise is hurting my eyes!!
i don't use this 🤓 lightly, but you are a SUPREME nerd if such a minor thing is "hurting your eyes" bro
@@ponponpatapon9670 how does that make them a nerd? Some people are more sensitive to flickering than others
These videos need to go into the Ark. We need keep them safe in case we ever need to rapidly tech back up.
Algorithm comment 🙌🏻
I am probably way off base here.
But I'm curious if dry systems are more prone to activating multiple sprinklers when only one sprinkler is tripped. I wonder if the transition from gas to liquid on an old system might cause some plugs to fail. Maybe even wet systems are prone to a similar failure point.
So maybe that's where that 'hollywood' sprinkler scene comes from.
I guess, the mistake is that you can trigger it just by smoking a cigarette in the room
It's pronounced "water" not "warder".
Who asked? Who cares?
Algorithm
Comment
My 3 yr old thinks fire comes out the sprinkler
Hyperintersing
Great video!
Great video