There was no other pump information supplied other than the 500gpm @ 60psi. And yes, the pump suction is 7' below the tank.
Brian Harris, CET FDFP Inc. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, June 02, 2011 9:45 AM To: [email protected] Subject: RE: Gravity Tanks Brian, Did you mean to say the pump sits 7' below the tank outlet in the bottom of the tank?This still wouldn't get you the 71.5 static.Maybe the designer is using the actual shop certified curve plus the elev. head from the tank,or as Ron mentioned,this is an actual pump test result. LV On Thu, Jun 2, 2011 at 9:30 AM, Brian Harris wrote: > Reviewing some calc's for a job that has a 30,000 gallon tank > (gravity) that > feeds a 500gpm @ 65psi pump that sits approx. 7' below the pump > suction, no > other sources of water supply. The current calc's show a static > pressure of > 71.5, residual of 65, and a flow of 500. I'm having a hard time coming > up > with the static of 71.5, what am I missing? > > > Brian Harris, CET > > First Defense Fire Protection > > 11957 Ramah Church Road > > Huntersville, NC 28078 > > Phone: 704.948.3506 > > Fax: 704.948.3507 > > Nicet # 128476 > > > > > > > ======= > Email scanned by PC Tools - No viruses or spyware found. > (Email Guard: 7.0.0.21, Virus/Spyware Database: 6.17450) > http://www.pctools.com/ > ======= > _______________________________________________ > 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) ======= Email scanned by PC Tools - No viruses or spyware found. (Email Guard: 7.0.0.21, Virus/Spyware Database: 6.17450) http://www.pctools.com/ ======= ======= Email scanned by PC Tools - No viruses or spyware found. (Email Guard: 7.0.0.21, Virus/Spyware Database: 6.17450) http://www.pctools.com/ ======= _______________________________________________ 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)
