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$~_~HYtl%~LIc ~ATION <br /> <br />STATIC ~gAD <br /> (vertical elevation cliffere~uc~ from the pu~9 ba~e <br />to the pressure dimtri~ation late=als) <br /> <br />feet <br /> <br />2. SYSTEM <br /> (include~ distribution piping losses and a S foo= <br /> ~idual head discharge at the distribution laterals) <br /> <br /> FRICTION HEAD <br /> ,!Transport pipe friction :lus~ a~ re~llt of flow rat~) <br /> <br />feet <br /> <br />(a) Calculata¥1c~Rate~ <br />Diameter of orifi~ = ~ <br /> <br />Number of orifices = N <br />Orifice discharge rat~ = R (see ~ver} <br />N X R ~ Flow Rate in gallonsperminuta <br /> <br />(b) Calculate Friction Loss <br /> <br />Length of tran~por~ pipe <br />Friction lo~s coeffici~n~ <br />LXF <br /> <br />= L ~w <br /> <br />-- Friction Head in ~ee~ <br /> <br />feet <br /> <br />(sum of s~atic head, systam allowance & <br />friction head) <br /> <br /> ft/ l DH <br />I$, <br /> <br />* In absence of Specific head loss ¢aloulat~ion~, us~ 10 ft. factor <br /> <br /> <br />