i have deluge system for extinguishing and i want to know is there specific area for deluge valve.
i mean the maximum area can coverage by deluge valve.
I think no any specific req. for that, however the valve should be located in easily access room and sure hydraulic calc. to be done to verify the pipe size/flow/pressure to size the deluge valve
Ihave found something in NFPA15 version 2017
A.184.108.40.206 Single systems should be designed to limit flowrates to as small as practicable, with consideration given to thewater supplies and other factors affecting reliability of theprotection. Large system size could decrease system reliabilityand increase transfer time, water wastage, and environmentalimpact. Large systems should generally be limited to adischarge rate of 2500 gpm to 3000 gpm (9463 L/min to11,355 L/min).
Might depend on what you are trying to protect, and how you are protecting it
NFPA 13 2016 edition
OHHH I am not an engineer, so you can discount my reply if you want, and I cannot do math.
This is my first time on this group, trying to understand the rationality behind NFPA 15 regarding Conveyor Belts. They state at 220.127.116.11 "The water spray system shall be installed to automatically wet the TOP belt, its contents, and the BOTTOM RETURN belt", it looks to be a huge amount of water if you are dealing with a long and wide belt!!!
In case you go for Deluge System, there is no specific area limit neither time to reach de open nozzle, at least I was not able to find it under NFPA 15.
On the other hand, regarding other specific Data Sheets related with Conveyor Belts, there are no restrictions about the Double Coverage (top&bottom) for partially enclosed conveyor, do anybody can tell me about this significant differences.
The only comment I have, since I have not done a NFPA 15 or conveyer belt,
There was some language, about trash and debris possibly being under the belt area.
As for design and amount of water, well just the nature of the beast.
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