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Anyone ever shine their 1W+ 445 on one of these?

Nordhavn

Nordhavn

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Joined
Oct 12, 2007
Messages
285
Points
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Common sense goes a long ways but perhaps there should be a list of things that one should not do!

This would be one such thing :D

sprinkler_head.gif
 





I have been told many times, by many different people - usually sprinkler installers and the like - that when one of these pops, it's just the one, not the entire system, as Hollywood would have you believe...


Still not a good idea, because if there is no fire in the hotel room, and the sprinkler started sprinkling, they may very well blame (= $charge) the occupant.

I await the video of someone trying to prove me wrong.
 
Leodahsan said:
I think they activate by smoke rather than heat...
Click to expand...


These are individually (non managed) sprinklers. They activate when the liquid inside the capsule expands and fills up the empty space. Without that capsule to hold back the water, it comes out and boy will it come out! :crackup:

Yeah I definitely don't recommend doing this to a head on a charged line! Find a spare and do it on your desk. It will still make a little mess like breaking a thermometer but that beats having 100s or even 1000s of gallons of stinky water gushing in. :na:
 
The fluid is even RED for perfect absorption. LOL..

And yeah, those sprinkler heads was one of the FIRST things I thought of when I started reading about the 445nm's..
 
it would probrably even work from like 25 feet away.........(rubs hands together)
 
It would take a mounted 1W 445 laser and probably about 3 minutes to heat up the entire volume of the capule high enough to break it. It wouldn't exactly be something you could do in a few seconds....
 
maybe not. These things are sensible because they need to save lifes. anyways, if someone is going to try, I recommend a lotta O-rings and waterproof testing :p.
 
I never tried this cause i thought it would turn on ALL the other ones in a building too.
 
Unless there's a remote 'detonation' system in place, they won't pop on their own accord without external force or heat being applied to them.

They work by the red glass envelope bursting, releasing the water behind them. Unless it has electronic triggering, one of the heads triggering won't cause every other one to open.
 
Okay, ill try it sometime when I'm in a place that doing it wont cause that much harm.
 
THe ones we use have some sort of copper slug that pops off when enough heat is applied to them. It takes a LOT of heat, i.e. fire, to get them to pop.

Our apartment heads have a water supply which goes to an alarm box which is monitored- if one pops, the alarm sounds and the fire alarm goes off, and the fire department reponds. If you get caught triggering a false alarm, God help you... (fire department charges are expensive!).

Each one triggers individually, unlike the movies. And the heads are quite expensive!

-Dave
 
saki302 said:
THe ones we use have some sort of copper slug that pops off when enough heat is applied to them. It takes a LOT of heat, i.e. fire, to get them to pop.

Our apartment heads have a water supply which goes to an alarm box which is monitored- if one pops, the alarm sounds and the fire alarm goes off, and the fire department reponds. If you get caught triggering a false alarm, God help you... (fire department charges are expensive!).

Each one triggers individually, unlike the movies. And the heads are quite expensive!

-Dave
Click to expand...

Nvm then. Im not gonna do it then if theres bills..
 
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