Sounds good
At 01:20 PM 11/2/2009, you wrote: >No takers?? > > > >--- On Fri, 10/30/09, Ralphy Henderson <[email protected]> wrote: > >From: Ralphy Henderson <[email protected]> >Subject: Omitting sprinklers (13 - 22.4.4.6.2) >To: [email protected] >Date: Friday, October 30, 2009, 5:55 PM > >NFPA #13 22.4.4.6.2. allows ommitting sprinklers from the calcs in >certain circumstances with the understanding that those sprinklers >ommitted will still need to be able to discharge at the minimum density. > >Does this mean that I can omit sprinklers in the calc then just make >sure the armover and branchline sizes established by the calcs are >maintained in sizing that particular sprinklers piping? So if I >establish pipe sizes as 1", 1", 1 1/4", 1 1/2" to each sprinkler on >the line I just make sure to not forget to include the head in the >closet as part of the overall sizing scheme? > >Or...???? > > >Thanks, > >RB > > > >For reference: > >22.4.4.6.2 The requirements of 22.4.4.6.1 to include every >sprinkler in the design area to be included in the system discharge >shall not apply where the area of application is equal to or greater >than the minimum allowable area of Figure 11.2.3.1.1 for the >appropriate hazard classification (including a 30 percent increase >for dry pipe systems). Sprinkler discharge in closets, washrooms, >and similar small compartments requiring only one sprinkler shall be >permitted to be omitted from hydraulic calculations within the area >of application. Sprinklers in these small compartments shall, >however, be capable of discharging minimum densities in accordance >with Figure 11.2...3.1.1. > > > > >_______________________________________________ >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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ 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)
