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APR-23-2007 10:39 From:GORDON JAMES <br /> , ' , I <br /> - University of Min�esota:Pump Selection Procedure - i 0125104 <br /> ai�ed�����enrea,u���w��a oe c�acea. <br /> !. Detentlble pumP capacity: T� <br /> I►. Graviy►D'�tr'ibuNon ��oo.e•.. ��- <br /> 1.Minimum required�ischa�e is 10 gpm <br /> 2.Ma�amum s�,gges�d discharge is 45 gpm . <br /> ! For otltet est�ments at least 1096 grea6et th2u�ihe vret�r � <br /> Supply tale,but no�ter tl�an the tele 8t whiCh efllum►t w�flow <br /> out of Ihe asb�ution dovioe. <br /> B. Pt+�tsu►e Distribu�ion-see p�+e�rcc design rrat�heet -� ;�rso�-�+�+� <br /> 8�Poi� .,l,Qf,��cnorge <br /> :.�. ,. <br /> SNected Pump Capacity: 47 gpm to►d cr�x+ � <br /> ;vng'tt ; <br /> 2A.Eaevo'Icr�; <br /> itl�e��._.-:_r:.... . d�lre�e^ce 1 <br /> Z De�in!Totaf Dynank Haad(FDHy �;�i; ;, ; <br /> ,�: , <br /> A �v�n d�e�oe betweer►pixr�p and point of d�ge. ;Y� . ... �; ; <br /> 17 feet �i:,�---�--�,r..,"�; -....... .. . .. ....... . <br /> B. Speciad head r�equi�r,enC�(Seo Fiptme-Special Head RequAsm�ts) <br /> ��feet Head Requirements <br /> �Y� � <br /> C. Fnction bss in 6u�tr pipe �e Disbibution 5ft <br /> 1_ Selec�pipe dlarneter �in <br /> 2, Ence�Figu►e E-g with�m(1A a B)and ppe diamebr(C1) <br /> Read hicbon loss m feeR 100 feet from Fgure E-9 EA Fridion l�s m PI�Pipe <br /> FricOon bs� 3.99 N 100 ft of pipe 100 n <br /> nominal <br /> 3.Dete�mine�otal pipe lengti bvm pump�Chargs b�sdi s�em d�sct�arge�oin� Flow Ra�e � 6ameler <br /> EstimaEe by adding 25 pe►oent;b P�e length(a fri�.�6on loss In 1�. 1.S 2.0" 3' <br /> �times 1.25=equivalertt p�e ien�h • �ZQ 2�7� •'0.73'. :'��l:1:�:. <br /> R x 1.25= 25t1 feet ?.5 3.73 1.11 0.16 <br /> � 30 5.23 9.55 0.2i� <br /> 4.C�ate�tal�i�oc�loss by multplying ficdon I�s(C2) 35 6.96 2.06 0.3 <br /> by 1he equivalerrt Pipe 1�►(p)and�bp 100. . 40 8.91 Z64 0.� <br /> Fnc�ion Lnss- 3.99 N1001t X 250 ft / 100= 10.0 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> D. 7otal head requirement is tl�e eum oi eleva�n difierenoe(A),spea� S5 4.76 0.7 <br /> head requiremenls(8),ar►4�ofal iric6on los�(C4). 60 5.6 0.82 <br /> 17 R + 5 R + 10.0 R 65 6.48 0.95 <br /> 70 7.44 1.(19 <br /> Totaf liesd: 32.0 feet <br /> 3. Pump Selection <br /> 1.A pump must be selected b�delirer at�agt 47 9Pm(1A or B) I <br /> �w1h at least 32.0 teet.ol total hea� �. <br /> I <br /> I t�ereby oe�tif�r tl�I have oom�ed this vrork in aacordanoe with aA applicable i ina�►oea,n,�les and lews. <br /> (signaturE) 810 �Hoense� 5/30J2006 Date <br /> � <br /> �age 1 of 1 <br />