No potable standards imposed yet that I'm aware of, just that the BFP be on the discharge side. Not sure of the impetus ...
SML Sent from my Verizon Wireless BlackBerry -----Original Message----- From: "Ron Greenman" <[email protected]> Date: Sat, 5 Dec 2009 12:24:07 To: <[email protected]>; Steve Leyton<[email protected]> Subject: Re: pump sensing line Steve, Good to know. Are they expecting the pump to be merely ductile or are they requiring one of those impossible to find at a price that won't break the Bank of Dubai pumps listed for per AWWA and UL?FM. Just had that come up on a private pump for a college campus where the EOR said it had to meet both criteria because there were fire lines off the dual duty loop. He was finally convinced that that loop for this small city sized campus was similar to a municipal loop and so the pump didn't need to rated for fire service. Then on the on-campus the high rises that needed booster pumps anyways and were off dedicated lines attached to the loop the pumps were UL/FM listed. My favorite Navy backflow install entailed a six inch riser splitting into a six inch bulk main and a four inch bulk main at about thirty feet off the floor. On the four in main (remember this is after the split) there is a four inch RPBA (remember thirty feet off the ground) installed with mega-lugs and rodding (guess what kind of contractor got that bid) and it's all over some machinery for a certain type of weapons testing (wish I could supply a photo but it's one of those have a camera and go to jail forever places). I pointed this out to the Navy Fire Department inspector years ago. This was years ago and hopefully it went to whomever is responsible (maybe the NAVFAC) and it's been corrected by now. Same building had the overhead crane grounded to the sprinkler system. On Sat, Dec 5, 2009 at 11:51 AM, steve <[email protected]> wrote: > A couple of comments: > > 1) I thought that's what Forest said last night, that both the backflow and > the sensing line were on the suction side. That's completely whack and I > can't picture it either. How the hell did they set the pump (and the jockey > for that matter). > > 2). FYI Ron: I don't know if it's in the UFC's or just NAVFAC practice, but > they're requiring the BFP to be on the discharge side of all pumps now. > > Steve > > > > Sent from my Verizon Wireless BlackBerry > > -----Original Message----- > From: "Ron Greenman" <[email protected]> > Date: Sat, 5 Dec 2009 10:14:22 > To: <[email protected]> > Subject: Re: pump sensing line > > Before the pump, between the backflow and the pump, and not after the > pump discharge check? I'm trying to picture what's different than a > typical set-up. > On Sat, Dec 5, 2009 at 10:09 AM, Forest Wilson <[email protected]> > wrote: >> The backflow is installed on the supply side of the pump, city side. >> The sensing line is installed system side of backflow. >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected] >> <mailto:[email protected]> >> <mailto:[email protected] >> <mailto:[email protected]> > ] On Behalf Of Ron >> Greenman >> Sent: Saturday, December 05, 2009 1:00 PM >> To: [email protected] >> Subject: Re: pump sensing line >> >> I'm surprised that the BFP was allowed on the system side of the pump >> at all but since the sensing line is for pressure drop in the system >> having it there (and allowing it as Tom says from the TIAs) makes >> sense. >> >> On Sat, Dec 5, 2009 at 1:24 AM, Tom Duross <[email protected]> wrote: >>> There was a TIA 2 or 3 editions ago for systems with the BFP on the >>> discharge of the pump. Between the loss through the BFP checks and the >>> hammer between the pump chv and the BFP, they allowed for moving it there. >>> It's correct and moreover better, also OK to combine them from the same >>> system tap (assuming the JP is also before the BFP). >>> >>> Tom >>> >>> >>> I saw a pump recently with the sensing line installed on the system side >> of >>> the backflow. >>> What is the reason for installing on the system, rather than the city side >>> of the backflow? >>> Am I correct that it should be on the city side? >>> >>> Forest Wilson >>> >>>_______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >>> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> <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) >>> >> >> >> >> -- >> Ron Greenman >> Instructor >> Fire Protection Engineering >> Bates Technical College >> Tacoma, WA >> >> Member: >> SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM >>_______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> <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 >> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> >> <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> <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) >> > > > -- > Ron Greenman > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > Member: > SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM >_______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > <http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > <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) > >__________ Information from ESET NOD32 Antivirus, version of virus signature >database 4662 (20091205)__________ > The message was checked by ESET NOD32 Antivirus. > http://www.eset.com <http://www.eset.com> <http://www.eset.com > <http://www.eset.com> > > >_______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > <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) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM _______________________________________________ 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)
