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SY~ HYI"2I~ C3%J~CULATIOIq <br /> <br />.gFATI C }~LAD <br />(vet~tical elevation differ~ from the pump base <br />to the pressure distu, ibution latea~als) <br /> <br />(includes di_qtribution piping losse~ and a 5 foot <br />resid[~l head disctkTrge at the distribution laterals <br /> <br />FRICTION tt 'EAD <br />(tt~rmport pipe friction loss as result of flow rate) <br /> <br />10' fcet <br /> <br />(a) Calculate Flow Rate <br /> <br />Diameter of orifices -- l/g--- inch <br /> <br />lhmM~er of orifices = N <br />Orifice cliscgmr~e r-ora = R (see over) <br />N X R = Flow Rate iD gallons per minute <br /> <br />.(N) <br /> <br />(b) C~nlculate Friction I~ss <br /> <br />Imngth of trar~port pipe = L <br />Friction loss coefficient --- F (see over) <br />L X F = Friction }lead in f~et <br /> <br />(I/lO0 ft) (F) <br /> <br />, F.~ ......... feet: <br /> <br />q'CII'AL DYNAMIC ItEAD <br />(r;um of static head, <br />frictio~l head) <br /> <br />system allowance & <br /> <br />D__,fl ~a a.,.. f t/'ITl I <br /> <br />* In abs~te of specific head loss calculations, use 10 ft. factor <br /> <br /> <br />