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SYSTEM HYDRAULIC CALCULATIONS <br /> <br />STATIC HEAD: <br />(vertical elevation difference from the pump <br />base to the pressure distribution laterals) <br /> <br />feet <br /> <br />SYSTEM ALLOWANCE: <br />(includes distribution piping losses and a 5 foot <br />residual head at discharge of distribution piping) <br /> <br />10, .feet <br /> <br />FRICTION HEAD LOSS: <br />(transport pipe friction loss from flow rate) <br /> <br />(a) <br /> <br />CALCULATE FLOW RATE: <br />Diameter of orifices <br />Number of orifices (N) <br />Orifice Discharge Rate <br /> <br />(R) <br /> <br />~/_~inch <br />~--~(see over) <br /> <br />N x R = Flow Rate <br />(N) <br /> <br />(Gallons per Minute) <br /> <br />(b) <br /> <br />CALCULATE FRICTION LOSS: <br />Length of transport pipe (L) <br />Friction loss coefficient (F) <br /> <br />feet <br /> <br /> (see over) <br /> <br />L x F ~ Friction Head loss in feet <br />100 <br /> <br />(Wi00) <br /> <br />TOTAL DYNAMIC HEAD: <br />(sum of static head, <br />and friction head) <br /> <br />system allowance <br /> <br />HYDRAULIC SPECIFICATI.Q.NS: <br /> <br />CAPACITY: TDH @ <br /> @ <br /> <br />GPM, and <br />TDH <br /> <br />*In the absence of specific head loss calculations, use 10 feet. <br /> <br /> <br />