I believe it is pump churn at rated engine speed x 1.21 + static (the 1.21 is for overspeed up to 110% of rated speed)
Mike Morey, CFPS, SET Planner Scheduler/Designer BMWC Constructors, Inc. 1740 W. Michigan St, Indianapolis, IN 46222 O: 317.651.0596 | C: 317.586.8111 [email protected] | www.bmwc.com ________________________________________ From: [email protected] [[email protected]] on behalf of Greg McGahan [[email protected]] Sent: Thursday, December 19, 2013 2:19 PM To: [email protected] Subject: Diesel Pump Relief Valve NFPA 20 2010 4.18.1.1 Is the intent of this section to do the following: Pump Rated pressure + 21% + Static OR CHURN pressure +21% ) Static? Thanks and Merry Christmas -- Greg McGahan Living Water Fire Protection, LLC <http://www.livingwaterfp.com> 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 fax 850-937-1852 _______________________________________________ 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
