Hello Todd, There might have been an office area in there at one time the smaller pump was for. No telling from here :) Good Luck and please let us know what you end up doing.
Friday, March 7, 2014, 2:23:27 PM, you wrote: > I have no idea what the purpose of the smaller pump is. The > 2500@125 pump would (in theory) produce 3750 gpm at 81 psi. The > churn pressure for the 2000@65 pump is 78 psi. The smaller pump is > not going to have any impact on the available water until the > pressure falls below 78 psi, which would probably be somewhere > around 4000 gpm (assuming the actual flow will exceed the 150% > point). If all 3 pumps are flowing, that number goes up to 8000 gpm. > At 8000 gpm, 500000 gallons will last 62.5 minutes. If you have a > fire that is demanding 8000 gpm, it is probably time to get out the > marshmallows and call CNN. > I know there were some funky things that went on with the old IRI > Maximum Reliability Systems. Could this have possible been one of those? > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > www.fpdc.com > 860-535-2080 (ofc) > Begin forwarded message: >> From: Todd - Work <[email protected]> >> Date: February 25, 2014 at 4:42:15 PM EST >> To: Barbara Corbeil <[email protected]> >> Subject: Video by uconnwbb > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > www.fpdc.com > 860-535-2080 (ofc) >> On Mar 7, 2014, at 7:57 AM, "Tom Duross" <[email protected]> wrote: >> I emailed and received order info on the remaining original pump. I emailed >> the factory back and asked if three were ordered at once and what the sizes >> were. >> I have no idea what the demand is Todd, maybe I should refer you to take a >> look on that end. I do know it was a refrigerated warehouse when the order >> was placed in 1971. >> I just boggles me that, assuming they were all the same, one replacement was >> ordered so small. Two 2500@125 and one 2000@65. Not even 2000@125, >> 2000@65. >> Scott, my thinking (and it's just me) would be to progress from small to >> large like with jockeys when in duplex/triplex fashion. >> The automatic pressure controls will be difficult either way so maybe sync >> the baby for lag 2 seeing yard pressures will probably be down 75-100 PSI at >> that point. >> I doesn't appear much has been done here in 10 years and it's an FM job >> which is surprising. >> I do have some thoughts about PLD and possibly a lower pressure on the >> replacement for the remaining original but can't make a move until someone >> smarter than me looks at what's on the other end of that 150 PSI yard main >> and huge building full of paper. >> I've also reached out to the local shop who replaced 2 of them but not >> getting much response. >> I'll keep the list updated. >> TD >> I'll ask another question. How many and what size pumps are required to meet >> the sprinkler demand? >> Todd G Williams, PE >>>> On Mar 6, 2014, at 10:08 PM, Brad Casterline <[email protected]> >>> wrote: >>> It occurs to me you are looking for answers not questions-- I'll run >>> back up to the nosebleed section now and just spectate >>>> On Mar 6, 2014, at 8:41 PM, Brad Casterline <[email protected]> >> wrote: >>>> Shouldn't the order of operation be farthest from tank, middle, closest >> to tank? Especially if farthest is weakest? >>>>> On Mar 6, 2014, at 8:30 PM, "J. Scott Mitchell, PE" >> <[email protected]> wrote: >>>>> 100% guess, but the first two may be intended to support the fire >> sprinkler system in the building with the third one coming on late in a bad >> game to support hose streams. >>>>> Just a thought. >>>>> J. Scott Mitchell, PE >>>>> Sent from my Verizon Wireless 4G LTE smartphone >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org -- Best regards, Charles Thurston mailto:[email protected] Systems Design Manager NICET Certified _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
