I'd ask him to please, for your edification, cite the sections of the NFPA Standard where he derived his specification data.
I guess he was looking at sprinkler data sheets and when it didn't say that the sprinkler is designed for 0.10 or whatever gpm/sq. ft he thinks it falls into that category? Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Wednesday, May 19, 2010 6:11 AM To: [email protected] Subject: 13R sprinklers I am working on a project with a rather ignorant engineer who will not accept listed flow requirements for residential sprinklers. He is insisting on using the 12 x 12 spacing, 13 gpm for multiple sprinkler flow and 18 for single sprinkler flow (we have to calculate both). My question may be one of semantics, but this is what the engineer is hanging everything on. Both the above spacing and discharge requirements are under sections entitled "Sprinklers That Have Not Been Listed with Specific (Discharge/Coverage) Criteria". Since virtually all of the residential sprinklers I am aware of have specific design and coverage criteria, am I to assume based on the wording that sprinklers with specific criteria cannot be used under this section? If so, are there any sprinklers without specific criteria currently on the market? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
