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�� OSTP Basic Pump Selection Design <br /> Minnesota Pollution WOrkSheet UNIVERSITY _ <br /> Controi A enc OF MINNESOTA " � <br /> 1. PUMP CAPACITY Project ID: v 04.20.2016 <br /> Pumping to Gravity or Pressure Distribution: Pressure <br /> 1. If pumping to gravity enter the gallon per minute of the pump: ��GPM (10-45 gpm) <br /> 2. If pumping to a pressurized distribution system: 36.0 GPM <br /> 3. Enter pump description: Demand Dosing Soil Treatment <br /> 2. HEAD REQUIREMENTS ev��M� <br /> A. Elevation Difference ��ft �,,,�, <br /> between pump and point of discharge: <br /> suo�'+�"' <br /> n�ec aw. devallon:�-• <br /> �-""�""a` " diHe�anu <br /> B, Distribution Head Loss: �ft � <br /> C. Additional Head Loss: �ft(due to specialequipment,ecc.� ----------------------------- -------------• <br /> Table I.FricNon Loss in Plastic Pipe per 100ft <br /> Distritiution Head Loss Flow Rate Pi Diameter(inches) <br /> Gravity Distribution = Oft <br /> (GPM) 1 1.25 1.5 2 <br /> Preuure Distribution based an Minimum Average Head 10 9.1 3.1 1.3 0.3 <br /> Value on Pressure Distribution Worksheet: �2 �2,g �,3 1.8 0.4 <br /> Minimum Avera e H�ad Distribution Head Loss 14 17.0 5J 2.4 0.6 <br /> 1ft 5ft �6 2�.g 7.3 3.0 0.7 <br /> 2ft 6ft �g q,1 3.8 0.9 <br /> 5ft 1 Oft 20 ��.� 4.6 1.1 <br /> 25 16.8 6.9 1.7 <br /> D. t.Supply Pipe Diameter: 2.0 • in 30 23.5 9.7 2.4 <br /> 35 12.9 3.2 <br /> 2.Supply Pipe Length: 60 ft qp 16.5 4.1 <br /> E. Fridion Loss in Plastic Pipe per t00ft from Table I: 45 20.5 5.0 <br /> 50 6.1 <br /> Friction Loss= 3.32 ft per 100ft of pipe 55 7.3 <br /> 60 8.6 <br /> p, Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge 65 10.0 <br /> point. Estimate by adding 25%to supply pipe length for fitting loss. Supp(y Pipe Lenqth 70 11.4 <br /> (D.I) X 1.25=Equivalent Pipe Length 75 13.0 <br /> 60 ft X t.25 = 75.0 ft 85 16.4 <br /> 95 20.1 <br /> G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Line E)by the Equivalent Pipe Length (Line F)and divide by 100. <br /> Supply Fridion Loss= <br /> 3.32 ft per t00ft X 75.0 ft + �pp = 2.5 ft <br /> H. Total Head requirement is the sum of the Elevntion Difference (Line A),the Distribution Head Loss(Line B),Additional Head Loss(Line C),and <br /> the Suppty Friction Loss(Line G) <br /> 8.0 ft + 5.0 ft + �ft + 2.5 ft = 15.5 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to deliver at least 36.� GPM(Line 1 or Line 2)with at least 15. 'rJ feet of total head. <br /> Comments: <br />