Well I guess the questioning would need to look at the facility and are there any other options.
I am on the road so if 20 or 13 don't give guidance what would be the other option don't store that way? Michael O'Brian Code Savvy Consultants www.codesavvyconsultamts.com www.inspector911.com Office: 313-618-6401 Cell: 810-459-0116 On Aug 28, 2009, at 1:59 PM, Ralphy Henderson <[email protected]> wrote: > But can NFPA 25 be invoked since this is a new fire pump going in > and not an existing one? > > --- On Fri, 8/28/09, Michael O'Brian > <[email protected]> wrote: > > From: Michael O'Brian <[email protected]> > Subject: Re: lack of suction volume > To: "[email protected]" <[email protected] > > > Date: Friday, August 28, 2009, 5:54 PM > > Todd > > One that comes to mind was an old warehouse that the fm found with > inadequate sprinkler density for plastic storage > > The incoming water could not flow 150% so it was tested to 100 % and > the insurance was okay, the fm just wanted to make sure he could fall > back on code. Case was made on options and why 150 couldn't be > achieved > > Michael O'Brian > Code Savvy Consultants > www.codesavvyconsultamts.com > www.inspector911.com > Office: 313-618-6401 > Cell: 810-459-0116 > > On Aug 28, 2009, at 1:27 PM, Todd Williams <[email protected]> wrote: > >> I am working on a warehouse which presently has very inadequate >> protection. One of the improvements needed is a fire pump. I have two >> options: a 1500 at 95 or a 2000 at 80. We can't go over the 95 psi or >> we end up with a churn pressure over 175 psi. However, the flow drops >> to 20 psi at 2400 gpm. The ESFR system I am recommending requires >> about 1950 gpm, including hose streams (the fire pump will have to >> supply hose streams as well). I want to use the 2000 gpm pump because >> it gives me better hydraulics, however, I can't test to 150% flow. >> NFPA 25 says "If available suction supplies do not allow flowing of >> 150 percent of the rated pump capacity, the fire pump shall be >> permitted to operate at maximum allowable discharge." Has anyone >> successfully presented this to an insurance company and Fire Marshal >> on a new installation and got them to go along? Any hints on how to >> present it? >> >> 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 > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
