I believe it's based upon 250 GPM per valve and this would provide your 500 GPM delivery.
Tom - NFPA 14 requires "an additional 2 1/2" hose connection" at the highest landing (if stairs go up to the roof) or at the roof, at the hydraulically most remote standpipe riser to facilitate testing of the system. I've never seen an additional hose connection being provided. I've been told by contractors that the hose connection at the highest floor level can be used for this purpose, which would be a difficult task as most buildings don't have access to the roof. What is the normal practice out there? Tony _______________________________________________ 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)
