Each side is evaluated independently of the other, so in order to omit both valves you need two conforming stairs, one on each side of the fire area separation wall. Also, be sure to carefully review Fig. A.7.3.2.2.1 (NFPA 14, 2016 ed.) as it gives a clear illustration of the intent of this exception. If you have a stairwell standpipe connection that enables you to reach the entire floor on one side of a horizontal exit within the 130' threshold, then you can omit the valve on the OTHER side of the exit (the one in the adjacent fire area).
The foregoing is my opinion only and is not intended to represent the NFPA 14 Technical Committee, nor serve as an interpretation of the standard. Steve Leyton Protection Design & Consulting San Diego, CA From: Sprinklerforum [mailto:[email protected]] On Behalf Of Kyle.Montgomery Sent: Tuesday, August 29, 2017 10:27 AM To: [email protected] Subject: Hose Valves at Horizontal Exits IFC 905.4 states that hose connections shall be provided on each side of the wall adjacent to horizontal exits, except where there is an exit stairway located within 130 feet (100' of hose + 30' of stream). In order to omit hose connections from both sides of the horizontal exit, am I required to have two exit stairs (one in each fire area) located within 130 feet of the horizontal exit, reachable from both sides? Or is any one exit stairway within 130 feet of the horizontal exit OK? Kyle Montgomery [cid:[email protected]] Aero Automatic Sprinkler Co. 21605 N. Central Ave. Phoenix, AZ 85024 Direct: 623.580.7820 Cell: 602.763.4736 [email protected]<mailto:[email protected]>
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