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F-17
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<br /> A. Determine pump capac.
<br /> Gravity Distribution tint T-1
<br /> " � e vtinimum su:Sc ted ,t YJ Sailor. cr hour J ;ay cad of S` k' K i�
<br /> water use rate. ti a
<br /> 1'aximum sut,pcs ted to a crop b<n of aic., --i,S_.7U'1
<br /> r "t �-ailons per ho i, (45 ).o p c.cnt bard-un of csi: toi.
<br /> ,j }'gess urc Dig tibut:on ...,., ,.,. -
<br /> � Alec:number of laterals
<br /> '-.S`ct'rX'rfon ion spat ' ?. fret_
<br /> C. Sub ract 2 ft.rcM the-(-,ck laver Icrs;ti; a?
<br /> 2 ft._ feet ± ..
<br /> ! r: L},tcrminc the num1Y i �pac*s t c n
<br /> s i L'Cnt th per spac. -
<br /> u _ - cvlu ind Ocrio:aUoa ih<hsn;c
<br /> .n¢.ilions cr.-minute(^Pml
<br /> ,pa ccs a+ l '�l perfocols/ii c it '.
<br /> d '.ful plv}_rtor tion; la cral 1
<br /> < l ;
<br /> [,ct total n �c.rof^c..,,rationc _� '
<br /> FPn
<br /> _ `� ,3
<br /> n k SELECTED F'I.-MI'CAPACITY 1. Q_Jr6 �./
<br /> i
<br /> 13.Determine head requiremc s:
<br /> a. Use fcr smile family`comes v-
<br /> 1. Elevation difference t cen pump and ;r l.. b.Ux for all other appitcations
<br /> �x feet
<br /> n�N2. If pumping to a pre`St _ 'is,nb Sten'::%t2 C"U.'12
<br /> required at manifold
<br /> 7xi✓�{;a .: �e t
<br /> Friction loss y
<br /> a. Enter friction loss to c with Spin and pipe diameter. P:ti L�cCti
<br /> Read friction loss in fct�t pr ILO feet from tib!e.
<br /> Point of DLccha:gc
<br /> F.L._ �,'-! ft./1CsJ ft of pipe _
<br /> b. Determine total pip--!cngth from pump to discharge �� - on DifCc cncc t
<br /> w point. Add 25 ps
<br /> erce 'to pipe length for fitting -t Dnp
<br /> w
<br /> r: loss,or use a fitting''ss chart. Equivalent pipe
<br /> length-1 2-7 times p length- r-18b
<br /> 1 c> x 1.25- I ) , -',t
<br /> ° C. Calculate total friction loss by multiplying I 1.5inch 2.0 mch 3.0 inch `
<br /> frit ion loss in ft/lffft by equivalent'pipe Icr
<br /> r :0 0.69 0.20 ;
<br /> rr r Tctal friction loss- `-t 4 T7 n
<br /> x� 1 - ;C^:l _-__;,et 6 r. .
<br /> ! 0.96 0.25 ,
<br /> Total head required is t sum ut eicvahon c' �erCi cc, .S 0.33
<br /> w anti special head reyuireme'1.ts,zinc!total tn, ;on io 16 i 1.63 04S
<br /> 060
<br /> inA 20 1 2.47 0.73 i 0.11
<br /> 3-73 1.11 0.16
<br /> n
<br /> (3 c) 3 0 i a23 1.55 I 0.23 k .
<br /> 790 2 06 0.30
<br /> 40 11.07 2-64 n.',9
<br /> TOTA tiLAD feet 4S 3.73 3?8 0.45
<br /> 30 3.99 O.SS
<br /> 0.70 ,•
<br /> C. Pump selection60 5.60
<br /> 1. A pump mus- .e selected to deliver at leapt _
<br /> `,« fi _`r�gprrt (Step /•.)with :east feet of total head(Step B).
<br /> et'{
<br /> r� r i $ �:. r "�� t -- '� a rl ".k.� ri p' t 3. ' ri �' `S. ,��it�s�. is,"+'4,;a3• # �"va _
<br /> .� - i4� yr.#i 5 rS,. � ra,'�`a r�l"r '�p�4` t 1d s�s_ fi A s•;yy�i ) jh s rk t �'"'"�:t' y�'4nM... �., r k �x :r :. r•
<br /> R
<br /> i�j
<br /> dt':-�`y�,'�^�V����n� t� �Y#M 33� 8., �x Ya�"� Yh3y�. 44"� [ r x t _� "�,���'" ��r.�' f Xr�J •� �r, ,t. '�k�� � f dx ,? r �r����
<br /> - k '7S � +++.ic:M .IT. ,`', {vr� � .'CtF : i��'",�Ir ,^r�M"i,tb s, t:y�y.t.r � 'rr �t� ,�,�:a.tr�.�yf.rT s. T;: :�' 1f `? _�"H�, t4,�y f .bn ,� ¢r-•4.
<br /> k .ts
<br /> �f� r
<br /> -T• p
<br /> .} ,r. . .Y''` 'x,'�"'$,:u. TIq.,::.a-
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