Its exponential- small bump in speed can give amazing results :) when you find yourself a little short. Yes, our driver WAS listed for the higher speed back in 1968....
George L. Church, Jr., CET Rowe Sprinkler Systems, Inc. PO Box 407, Middleburg, PA 17842 877-324-ROWE 570-837-6335 fax [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Brooks Sent: Wednesday, May 09, 2012 12:32 PM To: [email protected] Subject: RE: Adjusting Pump Curves for Pump Speed Thanks, age is a good thing in some products, but ... Bill Brooks -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Wednesday, May 09, 2012 12:20 PM To: [email protected] Subject: RE: Adjusting Pump Curves for Pump Speed See NFPA 20, A.14.2.5.4(7)(f) on page 90 of the 2010 ed. Steve Leyton -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Brooks Sent: Wednesday, May 09, 2012 9:11 AM To: [email protected] Subject: Adjusting Pump Curves for Pump Speed This is something I should know, but how are pump curves adjusted for pump speed? I'm looking at a curve based on 3450 rpm (60 Hz) and want to adjust it for 2900 rpm (50 Hz). Is this possible? Bill Brooks William N. Brooks, P.E. Brooks Fire Protection Engineering Inc. 372 Wilett Drive Severna Park, MD 21146-1904 410-544-3620 410-544-3032 FAX 412-400-6528 Cell _______________________________________________ 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
