One in every stairwell is a starting point but all portions of the floor must be reached (200 ft as Gregg pointed out - some day I’ll learn to look in the book). When the stair wells extend to all floors, additional connections are seldom needed but this type of a case can be expected to trigger the hallway connection.
7.3.2.11* Additional hose connections shall be provided in buildings sprinklered in accordance with NFPA 13 or NFPA 13R where the distance from connections required by 7.3.2.1 through 7.3.2.3 to the most remote portion or story exceeds 200 ft (61 m). 7.3.2.11.1 The distance in 7.3.2.10 and 7.3.2.11 shall be meas‐ ured from the hose connection. Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler Assn. Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> Fire Sprinklers Saves Lives > On May 22, 2017, at 2:20 PM, Jeff Normand <[email protected]> wrote: > > I'm thinking it says a hose valve at every required stairwell. Since this > stair does not have access then it would not be a required stairway. > Therefore hose valve not required. > > I have run into this before on a high rise with 3 stairs on the lower 8 > levels and 2 stairs on upper levels. One of the stairs did not have access on > the lower 8 floors, therefore no hose valve. > > Jeff >
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