So the pump is elevated above the suction supply from the tank? How is the suction flooded? Or did you mean the suction supply is 7' below the tank?
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brian Harris Sent: Thursday, June 02, 2011 9:31 AM To: [email protected] Subject: Gravity Tanks 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)
