Bobby, We do it all the time. The only drawback is if there are hydrants and there usually are on the yard loop. The typical fire flow for a 200k sqft. building, depending on construction type, is 4000 gpm (8000 gpm reduced by 50% for sprinklers). You probably have a 1500 gpm pump with an 8" bypass. Getting 4000 gpm through 8" especially if you have a BFP is almost impossible. When we have this situation we end up with a 12" bypass and parallel 10" BFP's. Maybe the fire flow requirements are different in your part of the country or the AHJ's don't verify the fire flow after the private hydrants are installed but its something that should be considered.
Ron Fletcher Aero Automatic Phoenix, AZ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bobby McCullough Sent: Friday, May 04, 2007 4:47 AM To: [email protected] Subject: Single Fire Pump Serving Multiple Buildings Is there something in the IFC or IBC 2006 or NFPA 20 which would prohibit a booster fire pump from supplying multiple buildings on the same property? Would it make any difference if the fire pump was in a stand alone building or inside a two hour enclosure of one of the protected buildings? The scenario is a developer with three detached 200K sq ft spec warehouse buildings with ESFR systems, all on one property, a good public water supply but not quite good enough. All buildings are supplied from a single tap to the public water system with a DDC device in a vault. NFPA 13-07 8.2.5 refers to "systems" or "risers" and I don't see the intent for it to include a booster pump supply. Bobby McCullough _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
