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= 4 __ OSTP Basic Pump Selection Design ��: -. <br /> � vy UNIVERSITY -"f - �- <br /> Minnesota Pollution Worksheet OF�INNESOTA hi� <br /> Control A enc ��1� <br /> 1. PUMP CAPACIIY Project ID: v 11.09.22 <br /> Pumping to Gravity or Pressure Distrtbution: Q c+arRY Q ResAre Selection required 2 <br /> 1. if pumping to gravity enter the gallon per minute of the p�xnp: ��GPM (f0-45 gpm) <br /> 2. if pumping to a pressurized distribu[fon system: 29.0 GPM <br /> /une t t o/aressure amtd,non) <br /> �: <br /> s w+m m a�mro� <br /> 2. HEAD REQUIREMEN7'S � z.;; .'::. :. <br /> A. Elevation Difference C�ft S,wd�+�"'"� <br /> between pump and point of discharge: "'°`� e�,,,,,,,:' <br /> mxerc�rce <br /> IK <br /> B. Dist�ibution Head Loss: ��ft - <br /> __._._ . <br /> ` ----------------------------- -------------• <br /> C. Additional Head Loss: �ft(due to special equipment,etc.) <br /> Table I.F�iction Loss in Ptastic Pipe t00ft <br /> Distribution Head L�oss Flow Rate Pi e Diameter(inches) <br /> Gravity Distribution = Oft �GPM) 1 1.25 1.5 2 <br /> Pressure Distribution based on Minimum Average Head 10 9.1 3.1 1.3 0.3 <br /> Vatue on Pressure Distribution Worksheet: �2 �2,g 4.3 1.8 0.4 <br /> N6nimumAvera e Hea�d Distributlon Head Loss �4 17.0 5.7 2.4 0.6 <br /> 9ft 5ft 16 21.8 7.3 3.0 0.7 <br /> 2ft 6ft �g 9.1 3.8 0.9 <br /> 5ft 10ft 20 11.1 4.6 1.1 <br /> 25 16.8 6.9 1.7 <br /> D. t.Supply Pipe Diameter. 2.0 in 30 23.5 9J 2.4 <br /> 35 12.9 3.2 <br /> 2.Supply Pipe Length: 320 ft qp 16.5 4.1 <br /> E. Friction Loss in Piastic Pipe per 100ft from Table 1: 45 20.5 5.0 <br /> 50 6.1 <br /> Friction Loss= 2.23 ft per 100R of pipe 55 7.3 <br /> 60 8.6 <br /> p, Determine Equivetent Wpe Length from pump discharge to soil dispersat area discharge 65 10.0 <br /> polnt. Estlmate by adding 25%to suppty pipe tength for fittir►g loss. Supply Pfpe Length �Q ��.4 <br /> (D.2) X 1.25=Equlvalent Pipe Length 75 13.0 <br /> 320 ft X 1.25 = 400.0 ft 85 16.4 <br /> 95 20.1 <br /> G. Calculate Supp[y FricNon Lou t�muttiplying Friction Loss Per f00ft (Line E)by the Equfvnlent Pipe Length (Line Fj and divide by 100. <br /> St�ply Friction Loss= <br /> 2.23 ft per 10oft X 400.0 ft + 100 = 8.9 ft <br /> H. Totol Hevd requir�ment is the swn of the Elevntion Dlfference (Lir�A),the Distribution Head Loss(Line B),Additional Head Loss(Line C),and the <br /> S�ply Friction Loss(li�G) <br /> 6.0 tt + 5.0 ft + �ft + 8,9 R = 19.9 ft <br /> 3. PUMP SELECTION <br /> A pump mint be setected to deliver at least 29 GPM(Line 1 or Line 2)with at least 2� feet of total head. <br /> Commenu: <br />