Yes, each check valve is loaded with springs, the pressure loss is due to the energy it takes to overcome the load.
Therefore I say unto you, Take no thought for your life, what ye shall eat, or what ye shall drink; nor yet for your body, what ye shall put on. Is not the life more than meat, and the body than raiment? MAT 6:25 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. JHN 3:5 > On Jan 11, 2017, at 7:40 AM, Dewayne Martinez > <[email protected]> wrote: > > Is there really a pressure loss at 0gpm flow for backflow preventers like the > curves show? I am trying to figure out my static pressure on a floor level > with a fire pump at churn and it needs to be accurate. > Thanks, > > Dewayne Martinez > Fire Protection Design Manager > > TOTAL Mechanical > Building Integrity > W234 N2830 Paul Rd. > Pewaukee, WI 53072 > [email protected] > Ph: 262-522-7110 > Cell: 414-406-5208 > http://www.total-mechanical.com/ > > <image001.jpg> <image002.jpg> <image003.jpg> <image004.jpg> > > TOTAL Mechanical voted “Top Workplace” for a 4th consecutive year. > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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