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. , <br /> ` ;� ._;:: OSTP Basic Pump Selectio Design ;:� �� <br /> U�IIVBRSITY <br /> MlnnesotaPo)iution Worksheet OP MINNESOTA �� <br /> Controi A enc `;;;�,�y <br /> 7. FUMP CAPAGITY ProJec[l0: v 11.09.22 <br /> Pumping to Gravtty or Pressure Dfstrtbut(on: O�r+rihr OO Rus�+e Setection requfred 2 <br /> 1. If pumpfng to gravity enter the gallon per mloute of the pump; GPM (f0•d5 gpn) <br /> 2, if pumping to a pressu�ized dist�ibution system: 5.0 GPh1 <br /> �u.,�»o�A-��a,a�wn«y <br /> � <br /> ay�na <br /> 2. FiEAD R£QUIREMENTS � , <br /> A. £levatMn Difference 22 ft y„�,,v�� <br /> between Q�xnp and pofnt of dfscharge: � �y„��' � <br /> �.ti. <br /> B, Distribut(on Head Loss: �ft - <br /> ., ._ <br /> --._ ._ . <br /> : ---------------•-•-••-------- --•---•-•---.. <br /> C. Addttional Head loss: ��fc(Gue to spectat equipment,etc.} <br /> Table l.Frictlon L6ss in Plasttc Pipe er i00ft <br /> Distributiot�Flaad t_oss ` <br /> Gravity Dtstributlon A ott ftow Rate P( e Diameter(inthes) <br /> (GPM) T1 1.25 1.5 2 <br /> Pressure DlsLrJbutiorr based on Minfmum Average Head 10 9.1 3.1 1.3 Q.3 <br /> Vatue on Pressure DSstribution Worksheet: i2 12,8 4.3 1.8 0.4 <br /> MInfmumAvers e Head flist�lbution Head R.oss- �q 17.0 5.7 2.4 0.6 <br /> 1ft Sft 1b 21.8 7.3 3,0 0.7 <br /> 2ft bf£ 78 9.1 3.8 0.9 <br /> 5ft 10ft 20 71.1 9.6 Li <br /> 25 '!b.8 6.9 9.7 <br /> D, t.Supply Pipe Dtameler. 2.0 in 30 23.5 9.7 2.4 <br /> 35 12.9 3.2 <br /> 2.SupplY PiPe��5�� 200 ft 4p 16.5 4.1 <br /> E. Fr)ction Loss in Ptasdc Pfpe per 100ft from Table i: QS 20.5 S.Q <br /> SO 6.1 <br /> Friction Lass= 3.32 ft per 10Df�ot plpe 55 7.3 <br /> 60 8.6 <br /> F, Determine fquimfent Pipe Length from pump discharge to so►l dtspersal area diuhnrge 65 10.0 <br /> poiat. Estimate Dy addfng 25%to suppty pfpe(ength for fittlng Ioss. Suppfy Pipe length <br /> (0.2)X 1.25<Ec�utvn[ent Plpe te�th �� t i.4 <br /> 75 13.0 <br /> 20Q ft X 1.25 - 250.0 ft 85 t6.4 <br /> 95 20.i <br /> G. Calculate Svpply F�c[lon Loss by multfplying Frlctlon Loss Per f00/c(L4ne E)by ti�e Equ fent Pipe Length {Line F}and divlde by 100. <br /> Supply Frictton Loss- <br /> 3.32 ttperto0ft x 250.0 R + t0p = 8.3 ft <br /> N. 7ofal Nead requirement is the sum of the Elemt7on DiJJe�ence (Lfne A),the Distr�uHon Head Loss(Ltne B►,Additfonal Mead Loss(itne C),and the <br /> Supply Frktion t.oss(LSne G) <br /> 22.0 fc + 5.0 ft + ��R . 8.3 R a 35.3 tt <br /> 3. PUMP SELECTION <br /> A pump must be se[ected to delNer at[�st 36 GPM{Line 1 or l.ine 2) th at least 3(j teet ot totat head. <br /> Comments: <br /> �� <br />