If one sprinkler goes off in a building do all of them go off?
2007-03-08 11:30:49 · 5 answers · asked by scootergarrett 2 in Science & Mathematics ➔ Engineering
By definition, a fire sprinkler consists of an orifice with a cap to prevent water from discharging, and a means for automatically releasing the cap. The releasing mechanism operates at a specific set temperature.
So if it is a sprinkler, operation of that sprinkler does not set off any others.
All other fire extinguishing orifices are called nozzles or spray heads.
An exception is the automatic fire sprinkler is used as a releasing device, not for spraying water on a fire. These are used where fire detection is desired, in order to perform some work, other than directly spraying on a fire. An example is a pilot line operated deluge system. Open spray heads are connected to piping fed from a normally closed automatic valve. The valve is opened by loss of pressure in a pilot line, on which fire sprinklers are mounted. When a sprinkler opens, pressure in the pilot line drops, causing the deluge valve to open.
2007-03-09 16:01:55 · answer #1 · answered by Ed 6 · 1⤊ 0⤋
It depends on the type of system. I am sure there are some systems that put water out of all sprinklers.
All the systems I have seen have a spring loaded valve that is held closed with a piece of metal that melts when it gets hot.
When the metal melts it allows the valve to open letting water come out. Controlling the sprinkler heads in this fashion, means only the area that is hot gets the water reducing water damage to the rest of the building.
2007-03-08 11:43:30 · answer #2 · answered by Lost in PA 2 · 0⤊ 0⤋
If they are on a main sensor, yes all sprinklers should go off in building. If they are on individual sensors then no, just the ones that have been triggered will go off.
2007-03-08 11:41:41 · answer #3 · answered by ascendent2 4 · 0⤊ 0⤋
that depends on the type of system
theres a type of system being activated by an external sensor having dry pipes with open valves in the detection area. this means a whole zone is flooded, once the system figures it has to open the central valve
another type has these metal plates inside and pipes under pressurized water ... once a plate melts just this one valve is open and floods the area
another type uses small liquid filled glasses and pipes who are under air pressure. once getting hot the liquid causes the glass to break, releasing the air which then triggers another valve to open which then shoots water into the pipes formerly loaded with air. other glasses in other areas break for the pressure of the water too, if they sit along the same pipe.
2007-03-08 13:54:14 · answer #4 · answered by blondnirvana 5 · 1⤊ 1⤋
No since they are locally activated by the heat of the flames.
2007-03-09 10:53:48 · answer #5 · answered by Scott S 4 · 1⤊ 0⤋