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STATIC ~EAD <br />(vertical elevation difference £~ the pu~p base <br />to the pressure di~tr~ laterals) <br /> <br /> (includes distribution piping l~es and a 5 foot <br />~ick~ul head di~ at the distribu~ic~ laterals) <br /> <br />,.(Trans~ pipe fric~io~ lo~ ~s resu%lt of flow l-at~) <br />(a) Calculate Flc~ Rate~ <br />Diameter of orifice~ = /8 inch <br /> <br />10. <br /> <br />Number of orifices = N <br />orifice ~e rat~ = R (~ over) <br />N X R = Flow Rat~ in g~llor~ per mi~ <br /> <br />(R) <br /> <br />Friction lo~ coe£fic/~nt <br />LXF <br /> <br />( L/100 ft) <br /> <br />C~lculate Friction ~ <br /> <br />'~AL DYNAMIC ~EAD <br />(sum of static head, <br />friction h~ad) <br /> <br />sys~m~ allowance & <br /> <br />/n absence Of s~cific head los~ Calcu/ations, %~e 10 ft. factor <br /> <br />feet <br /> <br />feet <br /> <br />feet <br /> <br /> <br />