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TOTAL SIDEROLL <br />HEADLOSS = (Sideroll Length [SRL1) x (Headloss_[1B1 ) x [F1 <br />with 5" Lateral (2.37.)x(100) <br />(/;?fD)x( ) = _:?'U psi [19)' <br />2.37.x100 <br />PRESSURE GAIN (or LOSS) DUE ) x <br />TO FIELD SLOPE = [S1 o x [SRLL = f <br />2.31 x 100 2.31 x 100 <br />NOTE; Look at most <br />restrictive conditions psi (20) pressure <br />in an entire field. due to elevation change <br />PRESSURE VARIATION: <br />Sideroll Headloss 1191 + Elev pressure Gain or Loss [201 <br />[DP) <br />t7 + or 100 = { ) %* <br />*PRESSURE VARIATION MUST NOT EXCEED ± 100 of DP. It flow control <br />nozzles are used, then ± 10o prssure limit can be dealt. with easily. <br />REOUIRED PRESSURE AT MAINLINE AT BEGINNING OF SIDEROLL [MPS <br />For Level Laterals = [DP) + 0.75 [7.93' +l <br /> <br />For Lateral-Laid Downhill = [DPI + 0.75 (19) - 0.5 (20) + 1 <br /> - + 0.75 ( )- - 0.5 )- + 1 = <br />For Laterals Laid Uphill = [DP) + 0.75 [193 + 0.5 [203 + 1 <br />(not recommended) _ + 0.75 1 + 0.5 J_,L + 1 = <br />1.0