Wear rings wearing?
On Wed, Aug 7, 2013 at 1:34 PM, Todd - Work <[email protected]> wrote: > I am working with a school system that has 3 diesel driven vertical > turbine fire pump at various schools, each taking suction from concrete > cisterns. The pumps range in age from 5 to 15 years old. The performance on > each of then has been declining for the past several years. Example, churn > decrease from 74 psi to 68 psi. Similar declines in flows at 100% and 150%. > The gauges on the last test were my calibrateds. An investigation showed > the suction screens are clean, so that isn't the issue. All 3 diesel > drivers seem to be operating properly. Any thoughts on what to look for > next? > > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > www.fpdc.com > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
