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�� � ���� ,� � � � ��`A� k: <br /> � � :j� 1 � �. ��. . .. r� �4,��C <br /> ������. F` .��' ��.. •..+ "�:s�#x . � � . . ' . . .. . 1'.+'J� � n . <br /> , <br /> ,A . <br /> , : , <br /> �: :• . ... ' . <br /> h � <br /> � <br /> , r <br /> ...� . .... .. . ' +.w.' � . � � <br /> . �w_�.. . -.- .,: .,i .� .._ ww .i..�- .� ....... � .. � . . .. r � <br /> � ... .i., � �: � ��:• i . ... . . .. . ... <br /> , -.. '.. . �.,.., «• <br /> � � <br /> . ` -:.' . � ., r`� " ' . . "'iM�'Ww <br /> . • � .z . . . . . , � '�� . . <br /> 'f ,�x,. .. ..,:; . �� . . y� #r* ��. . .-.. � . � k <br /> . .:'� .. ,� . . -. � �.'.� fµyel�r. ..v,v,.n... . .,.... <.. . � '�'"� <br /> �'� <br /> .... _ .. . �!T` . .}. . . . � . . <br /> . � J�_h .. . � . ,.. � . . ' .�vr ', .S . . . <br /> .4" � � � <br /> . . r ���Y i� �. . . `...... ..... � : :�±' � <br /> PUNIP SELECTION PROCEDURE perforation Discharges in gpm � <br /> perforation diameter <br /> A. Deterinine pump capacity: inches <br /> �ravity distribution fee j 1/a` 3/16 7/32 1/4 <br /> 1.Minimum required dischargc is 10 g;pm � <br /> �,OQ 0.18 0.42 0.56 0.74 <br />' . 2,ivlaximum sugbested discharge is 4:i gpm �Ob p,26 0.59 0.80 1.04 <br /> pressure distribution <br /> sec pressure design worksheeet 5.0 0.41 0.94 1.26 1.65 <br /> � °Use 1 A(oot for singi6-family homes. <br /> Selected pump capacity:�- gPm b��2.0 feet for anything eise. <br /> • Potentlal(or plugqlnfl <br /> B. Detcrmine heaci requirements: . <br /> 1. Ll�vation difference Uelween pump and point of discharge. <br /> _�_feet <br /> 2.S}�eci�l head rec�uiremer.t: <br /> Ii pumpinb to a pressurc ciistribution system, five feet for pressure .�. , <br /> rcquired at manifold. if�r�ivity system,zcro. s feet ; soil ireatment <br /> system :r�:r��. <br /> 3. T'ricti��n loss totai ipe • <br /> a`�- <br /> a. Entcr friction loss table with gpm and pipe diameter. � leng� � e�evotion � <br /> P.ead frictio S�oss in feet per 100 feet from table. pl�ee :-�"'�� V �u'� difference b� <br /> . r.L. = l- S ft./ioo fr of p�pe <br /> ,; <br /> ................. . . <br /> b. D��tcrmine total pipe length from pump to discharge ;..--------------•-------•--• ------� <br /> �ouzt. Cstimate by adding 25 percent to pipe length for fittir.g ""' <br /> loss. E� iivalent pipe length times 1.25 = total pipe length <br /> � 2��x 1.25 = 3�_feet F�iction Loss in Floslic Pipe <br /> c. Caiculale total friction loss by multiplying friction Ioss per 100 taet <br /> in ft;"100 lt.by equivalent pipe length. nominol <br /> r S:� -�-100= �- � feet pipe diameter <br /> Total Eriction loss=�_X � tlow rate 1.5" 2" 3" <br /> -�. Tc�tal liead required is the sum of elevation difference,special head pm <br /> � rcquirc::�ents, and total friction loss. 20 2.47 0.73 0.11 <br /> � �_+ S _+, � ' (1) (2) (3�) 3.73 1.11 0.16 <br /> , . 30 5.23 1.55 0.23 <br /> Tot�111ead: i lcet � 35 6.96 2.cti6 0.30 <br /> 40 8.91 2.64 0.39 <br /> . 45 I11.07 3.28 0.48 <br /> C. Pu�np selection � � �o '13.46 3.99 0.58 <br /> � � 4.76 0.70 <br /> . - bp 5.60 0.82 <br /> . 1. A }�ump must be select�ci to deliver at least�gpm � o.�8 0.95 <br /> � (Stc�� A)��ith at least�`9 feet of total head(Step B). �� 7.44 1.09 <br /> , - . _.._�.�_,�.�.. <br />����.-.. - ,� ��,�� �_~�� ,�#3,;��. <br /> f _.�.: <br />