§7.10.1.1.5 (2019 ed) The maximum flow rate shall be 1000 gpm (3785 L/min) for buildings that are sprinklered throughout, in accordance with NFPA 13, and 1250 gpm (4731 L/min) for buildings that are not sprinklered throughout, in accordance with NFPA 13.
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On Wed, Apr 3, 2024 at 9:06 AM John Denhardt <[email protected]> wrote:
Correct - for standpipe calculations purposes, buildings protected with NFPA 13R systems do not meet the requirements to limit the flow to 1,250 GPM
10.6.1.1.6 in NFPA 14 - 2024
John August Denhardt, P.E.Vice-President Engineering and Technical ServicesAmerican Fire Sprinkler Association301-343-1457
On Apr 3, 2024, at 09:49, Fpdcdesign <[email protected]> wrote:
13R buildings are not considered to be fully sprinklered.
Why would you do 1250 if it’s a fully sprinklered building?
Shawn Foor, SET
FOOR DESIGN, LLC10208 E 98TH STTULSA, OK 74133P:918-237-1400
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On Wed, Apr 3, 2024 at 08:43 <[email protected]> wrote:
Asking this on behalf of Rowe Sprinkler Systems (Temporally Un-Retired)
We have a 4-story modular apartment building sprinklered in accordance with NFPA 13R with allowed exceptions, with 4 standpipes. The standpipes are connected at the 1st floor level. One each at the ends of the L shaped building and two at the approximate mid-point on either side of a 2-hour separation wall with self-closing, rated doors in the corridor.
The question is for purposes of calculating the standpipe can these be treated as two separate buildings? For example, 250 gpm at the far end of the 4th floor, 250 gpm at the far end of the 3rd floor and 250 gpm at the at the connecting point of the middle standpipe, for a total of 750 gpm.
Or do we have to calculate the additional standpipes up to 1250 gpm. Available water is the issue.
Richard L. Mote CET
Rimrock Design Services, LLC
Middleburg, PA 17842
Mobile 570-541-2685
EMAIL [email protected]
WEB: www.rimrockdesignservicesllc.com
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Shawn Foor, SET
FOOR DESIGN, LLC10208 E 98TH STTULSA, OK 74133P:918-237-1400
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