Do you really have to calc hose? I use 3" hose for everything, with 2 1/2" couplings. Hose is hard to predict because of bends, kinks, etc. You can't just use the FDC as inflow and prove at the HMD valve(s) outlet? TD
Usually, the friction loss in rubber-lined hose is LESS than friction loss for steel pipe of same diameter, even with hose couplings that restrict. The calc with C=120 (used for steel pipe) would then be conservative on most rubber-lined hose applications. scot deal _______________________________________________ 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)
