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�.s. OSTP Basic Pump Selection Design <br /> Minnesota Pollution Worksheet UNIVERSITY <br /> Control A enc OF MINNESOTA '�-��L�"' <br /> 1. PUMP CAPACITY Project ID: <br /> Pumping to Gravity or Pressure Distribution: Q crawry QQ Pressure Selection required <br /> 1. If pumping to gravity enter the gallon per minute of the pump: �GPM (10-45 Spm7 <br /> 2. If pumping to a pressurized distribution system: 36.0 GPM <br /> 3. Enter pump description: <br /> 2. HEAD REQUIREMENT$ aomncot'e�sceysiy°e <br /> .a • <br /> A. Elevation Difference 14 ft �`��\8�" <br /> between pump and point of dfscharge: <br /> n�ec wve <br /> B. Distribution Head Loss: ��ft ' _ en�°e': <br /> C. Addittondl Hedd Loss: �ft ldue to spectalequipment�etc.) ------•----------------•----. ...-------.... <br /> Table I.Frlction Loss in Piastic Pipe per 100ft <br /> Disttibution Head Loss <br /> Gravlty Distrlbution = Oft <br /> Flow Rate Pi Diameter(inches) <br /> IGPM1 1 1.25 1.5 2 <br /> Pressure Distribution based on Minimum Average Head 10 9.1 3.1 1.3 0.3 <br /> Value on Pressure Distribution Worksheet: �2 �2,g 4.3 1.8 0.4 <br /> Mlnimum Avera e Head Distributlon Head Loss 14 17.0 5.7 2.4 0.6 <br /> 1ft 5ft �6 2�,$ 7.3 3.0 0.7 <br /> 2ft 6ft 18 9.1 3.8 0.9 <br /> 5ft 1 Oft �p 11.1 4.6 1.1 <br /> 25 16.8 6.9 1.7 <br /> D. 1.Supply Pipe Diameter: 2.0 in 30 23.5 9.7 2.4 <br /> 35 12.9 3.2 <br /> 2.Supply Pipe Length: 95 ft 4p 16.5 4.1 <br /> E. FHction Loss in Plastic Pipe per 100ft 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 Equivnlent 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. Suppl y Pipe Length �� ��.4 <br /> (D.2) X 1.25=Equivo(ent Pipe Length 7g 13.0 <br /> 95 ft X 1.25 = 118.8 ft 85 16.4 <br /> 95 20.1 <br /> G. Calculate Supp(y Friction Loss by multiplying Friction Loss Per f00ft (Line E)by the Equivalent Pipe Length (Line F)and divide by 100. <br /> Supply Friction Loss= <br /> 3.32 ft per 100ft X 118.8 ft + 100 = 3.9 ft <br /> H• Total Head requirement is the sum of the Elevation Difference (Line A),the Distribution Head Loss(Line B),Additional Head Loss(Line C),and <br /> the Supply Friction Loss(Line G ) <br /> 14.0 ft + 5.0 ft + ��ft + 3.9 ft = 22.9 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to deliver at least 36.0 GPM(Line 1 or Line 2)with at least 22�9 feet of total head. <br /> Comments: <br />