You may have to seek an interpretation from NFPA. I personally don't think the requirements in 20 apply to the underground supply.
Ed Kramer Littleton, CO > -----Original Message----- > From: [email protected] [mailto:sprinklerforum- > [email protected]] On Behalf Of Dewayne Martinez > Sent: Thursday, November 17, 2011 9:34 AM > To: [email protected] > Subject: RE: fire pump suction piping - flushing > > Under 2-9.1 Suction pipe and fittings > The suction components shall consist of all pipe, valves, and fittings > from the pump suction flange to the connection to the public or private > water service main, storage tank...... > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ed Kramer > Sent: Thursday, November 17, 2011 10:17 AM > To: [email protected] > Subject: RE: fire pump suction piping - flushing > > Dewayne, > > I'm going off memory, so you probably should verify this. I believe > somewhere in NFPA 20 (the 'scope' section, maybe?), it says NFPA 20 > requirements begin at the suction control valve. Assuming that's > correct, any piping upstream of that is not subject to NFPA 20 > requirements. > Therefore the underground suction pipe need only be flushed per the > requirements of NFPA 24, not 20. > > Your mileage may vary. > Ed Kramer > Littleton, CO > > > > > -----Original Message----- > > From: [email protected] [mailto:sprinklerforum- > > > [email protected]] On Behalf Of Dewayne Martinez > > Sent: Thursday, November 17, 2011 5:03 AM > > To: [email protected] > > Subject: RE: fire pump suction piping - flushing > > > > Sorry, > > I had the standards flipped in my original email. I was trying to > > confirm of I needed to use the flushing rates from NFPA 20 (11-1.2, > > 99ed)not 24 for the UG supply pipe when a fire pump is involved on a > > project. > > I have been running into opposition when trying to get the UG > > contractor to flush per 20 and just wanted to make sure they needed > > to. I have a local consultant who works for many of the AHJ's that is > requiring this. > > Dewayne Martinez > > > > Design Build Fire Protection > > > _______________________________________________ > 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
