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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 />SYSTEM ALLOWANCE: <br />(includes distribution piping losses and a 5 foot <br />residual head at discharge of distribution piping) <br /> <br />FRICTION MEAD 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 />1/8 inch <br /> <br />.41 (see over) <br /> <br />N x R <br /> <br />= Flow Rate (Gallons per Minute) <br /> <br />42 x ,41 <br />(N) <br /> <br />GPM <br /> <br />(b) <br /> <br />CALCULATE FRICTION LOSS: <br />Length of transport pipe (L) <br />Friction loss coefficient (F) <br /> <br />L x F = Friction Head loss <br />100 <br /> <br />(L/zoo) <br /> <br /> ?~ __feet <br /> _(see over) <br /> <br />in feet <br /> <br />TOTAL DYNAMIC HEAD: <br />(sum of static head, <br />and friction head) <br /> <br />system allowance <br /> <br />HYDRAULIC SPECIFICATIONS: <br /> <br />PUMP DUTY: 17.22 GPM @ <br /> <br />TDH <br /> <br />BRAND: Bos~ St~2nless St~l £u~p p~mp ( Grundfos ) <br /> <br />MODEL: ~00 ; HORSEPOWER: % <br /> <br />CAPACITY: _~0.3 TDH @ ~ ..... GPM, and <br /> _~ GPM @ TDH <br /> <br />*In the absence of specific head loss calculations, use 10 feet. <br /> <br />10' feet <br /> <br />10' feet <br /> <br />~. feet <br /> <br />~FEET <br /> <br /> <br />