Laserfiche WebLink
m mm <br />( <br />WJMPSBLICTIQN <br />A. DctemfaitpwRpcapadtyi <br />j ,{#:•( Ml] •/LE <br />Gmily DitIrlbulSon <br />1. Mlnlmuimiigyiiwlit600gallootpgrhour(10gpm)loiUyhMKtol <br />water UM rale. <br />2. Maximum fuggeiled for delivery to a di^ box of a home system if 2700 <br />galions per hour (45 gpm) to prevent build-up of pressure in drop box. <br />00 wwoawiox V A rearoaiiiD uuhim . <br />Pressure Disiribulloa <br />3. a. Select nuiriberof perforated laterals, <br />b. Select perforation spacing • ~L <br />Subtract 2 ft from the rock layer length. <br />- 2 ft - Jik. ft- <br />e. <br />f. <br />Determine the number of spaces between pe^rations. <br />Length perf. spacingft ♦JL-. ft* spaces <br />.spaces♦ 1 ■ * perforatioits/latcral <br />Multiply perforations per lateral by number of laterals to <br />get tc^ number of pffforations. ^ <br />-----perforations. •» <br />gpm. <br />SELECTED PUMP CAPACITY.gpw <br />B. Delenninc head lequiiements: <br />1. Elevation difference between pump and point of discharge. <br />^ fret <br />2. If pumping to a pressure distribution system* add five feet for pressure <br />icquir^ at manifold <br />5" feet <br />3. Friction loss <br />a. Enter friction loss table with gpm and pipe diameter. <br />Read friction loss in feet per 100 feet from table. <br />F.L. - ft./100 ft of pipe <br />b. Determirre total pipe length from pump to discharge <br />point. Add 25 percent to pipe len^h for fitting <br />loss* or use a Htting loss chart. Equivalent pipe <br />length -1.25 times pipe length » <br />I - J X 1.25 * / 'y ’■ feet <br />c. Calculate total friction loss by multiplying <br />friction loss in ft/100 ft by equivalent pipe length. <br />Total friction loss * • .x / - -t-lOO =__y. <br />Total head required is the sum of elevation diflcretvje, <br />special head requirements* and total friction loss. <br />r <br />(1) (2) <br />TOTAL HEAD _ <br /><3c) <br />feet <br />C. Pump selection <br />1. A pump must be selected to deliver at least <br />with at least feet of total head (Step B). <br />j_gpm (Step A) <br />Hum tar iM* <br />ssTr&'sur <br />TAMJOFPIIFOIIAIION OOCHAIICBMCPM <br />Hmt <br />V.V. <br />iJOi OSS SJ4 <br />U OiS a« <br />ijOb OJO IjM <br />2S OJS 1.17 <br />SjO O.W 111 <br />4j0 I.U U7 <br />SjO IM US <br />aUe UHbot oOmd far Midmital ^UciM. <br />Pipe Length <br />Pun'ofDiiciMm <br />—— ’-Tc-jr <br />Eteveiion DifToaiM <br />1 <br />F-lIb <br />gpm <br />IJinch 2.0inch S.Oindi <br />FrioioR taM l»a if <br />10 0.20 <br />12 0.96 0.28 <br />14 1.28 0.38 <br />Ifi 1.63 0.48 <br />18 2.03 0.60 <br />20 2.47 0.73 0.11 <br />2S 3.73 1.11 0.16 <br />30 5.23 1.55 0.23 <br />35 7.90 2.06 0.30 <br />40 11.07 2.64 0.39 <br />4S 14.73 3.21 0.41 <br />50 3.99 0.58 <br />55 4.76 0.70 <br />60 5.60 0.82