As stated above,
You are dealing with TWO different calc areas and TWO different calc methods.
Calc the ESFR, per their criteria.
Then do a Density/Area calc for the mezz.
The Only time you would have combined flow is if rack sprinklers were required as a compliment to the overhead.
R/
Matt
3.5" or 5" pipe were pretty good indicators.
Date of system installation is the biggest.
Back in the day, hydraulics were cost prohibitive. So no one did them.
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Matt
Nothing really in NFPA.
Might be a issue with Fire Stopping depending on assembly.
One potential I do see, is that the conduit appears to be touching the sprinkler piping.
NFPA 13 requires nothing be supported from the sprinkler piping.
It is a foreign item touching the sprinkler piping per...
Really enjoying this thread...
I agree with Tmack.
I tend to go with the more stringent as well.
I do feel however, that the Fire Load is a "loaded" description.
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Matt
We've drifted pretty far from the question..,
Please understand, the way you asked the question, tells me that you need a professional contractor's assistance.
That is a question that cannot be answered on a Tips forum IMHO.
There are many ways to find one in your area..
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Matt
I am not sure what a "gripple" wire is, but it does not sound like a listed attachment?
Any items touching the structure, or the pipe, in Fire Sprinkler applications must be listed.
Normally, if permitted by the Steel Manufacturer, some sort of "Sammy Screw", or other approved means is to be...
You already know the answer..
Unfortunately, it places us in the bad for having to tell the owner, the city messed up, we need another $250k for a tank..
I feel we do need to hold them accountable.
The question truly is how.
R/
Matt
Not quite sure of the extent of the questions you are asking.
80,000/52,000 = 1.53, or 2 System Risers minimum.
Pump for each System Riser- I am not sure of what you are asking.
Normally there is one pump for building if needed.
Ring type main- Presumably looped?
Really not enough info here...
