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STAT/C H~AD <br />(vertical elevation dlfferenc~ from the pu~3 base <br />to the pressure distribution laterals) <br /> feet <br /> <br />SYEr~M A//~NCE <br />(includes distribution piping losses and a 5 foot <br />residual head discharge at the distribution laterals) <br /> <br />10- feet <br /> <br />FR~C~PION ~HEAD <br />~transport pipe friction: loss as result of flow rate) <br /> <br />(a) Calculata Flow Rate <br />Diameter of orifices <br /> <br />Number of orifices -- N <br />Orifice discharge rate = R (see over) <br />N X R ---- Flow Rate in gallons per minute <br /> <br />X = GPM <br /> <br />(b) Calculate Friction Loss <br /> <br />Lmngth of transport pipe <br />Friction loss coefficieht <br />L×F <br /> <br /> F (se~ over) <br />Friction Head ~% feet <br /> <br /> 1~. X = feet <br />(I~/lO0 ft) <br /> <br />· C~AL DYNAMIC HEAD <br /> (sum of static head, system allowance & <br /> friction head) <br /> <br />HYDRAULIC SPECir'±CATIONS <br /> <br />* In absence of specific head loss calculations, use 10 ft. factor <br /> <br /> <br />