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ptnyrp��E�ON PROCEDURE <br /> A. Determine pump capacitp: <br /> Gravity Distribution <br /> 1. Minimum suggested is 20 gpm <br /> 2. MaXimttal5uggested is 45 gpm � Pertoratlon Dtec�u:ga ia GPM <br /> Had Perforation dLmeter ' <br /> pressure Distibution 3 feet i�+ches <br /> 3.a. Select number of perforated laterals � 32 � � <br /> b. Select perforation spacing a 3 fee� �.oa o.sb' oaa <br /> c. Subtract 2 h.from the rock layer length. is o.69 0.90 <br /> 3'�,,,-2 fc._��fee� . 20� o.eo i.oa <br /> ltedc Vrv <br /> d. Det�e the number of aces between perforations. a vae�.o toot�►gte t►oa►es. <br /> L,ength perf.SpaGislg=�ft.+ �•�f�_�L SPaCes b Use 20 feet tor aaythi�g else. <br /> e. .L3,spaces+1=1�perforations/Iateral <br /> f. Multiply perforations per lateral by numbez of laterals to t 1 y <br /> get total number of perforatlons.� x ���_�perforatioas. <br /> 8• � X '�-�-�- r'���'' <br /> � SELECTED PUMP CAPACITY . a� gpm <br /> B.Determine head requiremenb: <br /> 1, Elevation differeace between pump and point of discharge. <br /> �_feet <br /> 2 If pumping to a pressure distr�ution system,five feet for pressure s°"°�'m'""'r'°`°' <br /> required at manifold if gravity s tem,zero. �o� <br /> s feet �"'a�.'"�a' <br /> 3. Friction loss <br /> a. Enter friction loss table with gpm and pipe diameter. �,,,,,,,s� <br /> Read frictfoa loss in feet per 100 feet from table(F-14). �`�' <br /> ' `/ ....... .. . <br /> F.L=�f�/100 ft of pipe ' . 4S b <br /> b. Deteraline total pipe length from pump to discharge .................................... <br /> point Estimate by adding 25 percent to pipe length for fitting <br /> loss,or use a fitting loss chart(F-15__feet). <br /> Equivalent pipe len 1.25�rnes pipe length= . • <br /> �,.�x 1.2s= 1SSo feec Friction Loss in Plastic Pipe <br /> c Calculate total friction loss by alultiplyiag <br /> friction loss in ft/100 R by equivalent pipe length. � Nominal <br /> Total friC�oilloss a ). � X 15'So +100=_�_feet pipe dia. <br /> 4. Total head required is the sum of elevation difference, �OWm� 1s" 2" 3» <br /> special head requirements,and total friction loss. � <br /> 20 247 0.73 0.11 <br /> �'�+�_+ a ' 25 3.73 1.11 0.16 <br /> ' (1) (2) (3c) 30 .523 � 0.23 <br /> 35 6.% 206 0.30 <br /> 40 8.91 264 0.39 <br /> TOTAL HEAD �_feet 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> C. Pump selection � , 5 60 o si <br /> 65 6.48 0.95 <br /> - 70 � 7.44 1.09 <br /> . : ..��� wAlil�.���In�Y�1�•�k 9e �� f1l Y . : '� . <br /> 1. A pump inust.bejselected to dehver at::least' � <br /> ; d�l �-gpm (Step A),with at;least ��feet�of tolal•head (Step B). <br /> , . . .-';�h' � . <br />