I think that the sections I referenced are quite clear: "For Class III systems installed without hose, the water supply requirements shall be as specified for Class I systems."
That would be ALL of the water supply design criteria, including both maximum and minimum pressures. Steve Leyton Protection Design & Consulting The foregoing is the opinion of the writer alone, and does not necessarily represent the intent of the NFPA 14 Technical Committee, nor constitute a formal or informal interpretation of the standard. -----Original Message----- From: Timothy W Goins [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 30, 2007 12:49 PM To: [email protected] Subject: RE: NFPA #14 and pressures Steve, In my opinion the 100 PSI reducer is still required for that reducer and it's proposed hose, if it is ever used. If I'm wrong please let me know and I'll paste it in my 14. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Leyton Sent: Tuesday, January 30, 2007 2:36 PM To: [email protected] Subject: RE: NFPA #14 and pressures Timothy: Check out 7.3.4.1.2 (2007 ed.) and 7.3.4.1 (2003 ed.) Steve -----Original Message----- From: Timothy W Goins [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 30, 2007 12:20 PM To: [email protected] Subject: RE: NFPA #14 and pressures The definition os a Clas III requires 1½" Hose statoins (hose included) and 2½" hose connections; 3.3.27.3 Class III System. A Class III standpipe system provides 38-mm (11⁄2-in.) hose stations to supply water for use by building occupants and 65-mm (21⁄2-in.) hose connections to supply a larger volume of water for use by fire departments and those trained in handling heavy fire streams. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Todd Williams - work Sent: Tuesday, January 30, 2007 2:12 PM To: [email protected] Subject: RE: NFPA #14 and pressures And even if they find one, would you trust an untrained person on the end of a hose with 100 psi discharge? At 03:02 PM 1/30/2007, you wrote: >One thing that does not make sense....where are these untrained people >going to get 1 1/2" hose? > >Paul J. Pinigis, P.E. >Chief Life Safety Engineer > > > >Must meet both criteria. The 1½" hose station is available for >untrained persons thus the pressure limit. > Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut 860-535-2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
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