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, , • ,..�.�,��u�r�'•,y�.�.�.r,.�.. ,s.•wr.-,, .-..�. ..n�, . ��+�t r�!+�ir.Trre ysy]Yr6:: . <br /> ' �t.,aa^'r ,���tr: <br /> .. ,. <br /> -�� �sy ' � E-31 '. <br /> �:� .�. c • �: <br /> ��'�� Flgure E•25: Pump SeJection Worksheet � � .. . ; � - <br /> :� *,�V' . � , . <br /> `''-�' � PUMP SELECTION PROCEDURE <br /> � ��{.: . <br /> .•,�:._.: , <br /> � 1. Determine pump capacity: <br /> A. Grovity dlstribution � <br /> � 1. Minimum required discharge is 10 gpm . �i � <br /> � 2 Maxinium suggested discharge is 45 g-pm. For other 2 , <br /> �` establishments at least 10% greater than the water supply rate, �' �"�r'�"'�'�'" <br /> ..,,:;- <br /> ��`���°• but no faster than the rate at which effluent will flo�v out of the ''1.a � "" � <br /> �":�"�= distribuCion device. p tora o� <br /> .;-.;€�: � ' <br /> ��"�'���� 8. Preuure dIstrlbution wer �`''e18VO"O" �, ,(/�-r <br /> �';�. .:. � dnarence � <br /> '`�.�f{��� See pre�sure distrlbutlon work sheet ...... . �" <br /> : ;�.' . � ,,�,(� �- .......................... ....... <br /> ��;;:�� �Ftom A or B Selected pump capaciry: gpm ,. <br /> �. . <br /> '� ` ,' 2. Determine pump head�requ(rements: � � <br /> �''��- �'A.Elevation difference between pump and point of discharge? , <br /> � �'p�i• . � . <br /> ° : `*��_feet . <br /> �� ���B.Speaal head requirement? (See Figure at right - Special Head . � � <br /> � '�'��:��Requiremen s) <br /> ��`��•�. Speclal Head Requirements <br /> -•_� - feet <br /> :�i'fi;�,. <br /> 'a C.Calculate Friction loss Gravity Disuibution o�t� <br /> ';: .•>c::i;; <br /> � -��.�;;� 2 �'j Pressure Disuibution �--.�`� S_ft . <br /> ���'��'' 1. Select pipe diameter � in <br /> �;���7` 2. Enter Figure E-9 with gpm (lA o�) and pipe diameter (C1). : <br /> ` "'" Read friction loss in feet per 100 feet from Figure E-9 <br /> ���' F�lction Loss in Ptastic Pipe; <br /> ', Q-" a Z.� <br /> � ��y '..,:�., <br /> >> ��:�Friction L.qss. __�..h/100ft of pipe <br /> x �' .':';3. Determi.ne total pipe length from pump discharge to soil �pe d��m�eter <br /> • �'�.;trea�ent discharge poin� Esti..mate by adding 25 percent to pipe tlow rote t.�' 2' 3� , <br /> .'. � `length for fitting loss. Total pipe length times 1.25 � equivalent flPm <br /> :�::;� 20 2.41 0.73 0.11 <br /> ��"` �:pipe length g r/ <br /> �' -��=feet x 1.25 a � � feet ,� 25 3.13 1.11 0.16 <br /> .r- --- .... <br /> .4.Calculate total friction loss by multiplying friction loss (C2) :�i�:�:•. � 5.23t.._t. <br /> , uin h/100 by the equivale t ipe length (C3�d d.ivide by 100. � 6.96 2.ob 0.30 <br /> t .�'�,�t� 2'G� h/100ft x �� +100 = Z ft 8.91 � 0.39 <br /> �:�.D;�•Total head required is the sum of elevation diFference (A), special �. 1!�:3��.�::A4�. <br /> ` �:��`'�ead requirements�.B), and total friction loss (C4) 5o t3.aa 3.�9 0.58 <br /> ` .� h+��_ft = 55 a.7o oJo <br /> ::� n`` '�`, Et +—_ <br /> �'� � � total heod: �feer ' -�'s-��'6° �'�'n�� <br /> F:;.�i �,5 6.48 0.95 <br /> �.f,, . . . <br /> p��; s Pump selectlon �o �•� 1•� <br /> �*. . ,,;r <br /> Y4 ' , <br /> �'�� p' um must be selected to deliver ac leasc ��. � <br /> ��` "p' p feet of tocal head (2D) <br /> i.� or B)with at least /_ „3 <br /> . ��`� � <br /> 7: <br /> T3::i7tlR+[•:: i . <br /> �b hsve compk this work in accord��with applicable ordinances„ rules and laws. <br /> r�." �� �si ture) �/!`� l�� (license �) 7 �/� �date) <br /> �z;�.. o✓� g^a <br /> z-� <br /> wt . <br />