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OSTP Basic Pump Setection Design <br /> Minnesota Pollution Worksheet UNIVERSITY <br /> Control Agency OF MINNESOTA �1,.�" <br /> t. PUMP CAPACITY Project ID: <br /> Pumping to Gravity or Pressure Distribution: Q Graviry QQ Pressure Selection requlred <br /> 1. If pumping to gravity enter the gallon per minute of the pump: ��GPM (f0-45 3P►n) <br /> 2. If pumping to a pressurized distribution system: 36.0 GPM <br /> 3. Enter pump description: <br /> 2. HEAD RE UIREMENTS s ` <br /> Q point of discMrye <br /> � . <br /> A. Elevation Difference 20 ft <br /> between pump and point of discharge: <br /> S�H K� <br /> ���� Elwatlon%�• <br /> B. Distnbution Head Loss: �ft -- . - a�nenn�e <br /> C. Additional Head Loss: ��ft(due to special equipment,eu.) ----------------------------- -------------• <br /> Tabie I.Friction Loss in Plastic Pi r 100ft <br /> Distribution Head Loss <br /> Gravity Distribution = Oft FIOw Rdte P� Diameter Iinches► <br /> (GPM) i 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 �Z,g 4.3 1.8 0.4 <br /> Minimum Avera e Head Distribution Head L.oss �4 17.0 5.7 2.4 0.6 <br /> ift 5ft �6 Z�,g 7.3 3.0 0.7 <br /> 2ft 6ft 18 9.1 3.8 0.9 <br /> 5ft 10ft 20 ��,� 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 qQ 16.5 4.1 <br /> E. Friction Loss in F[astic 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 /> F, Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge 65 10.0 <br /> point. Estimate oy adding 25%to supply pipe length for fitting loss. Suppty Pipe Length �� 11.4 <br /> (D.2) X 1.25=Epuiva(ent Pipe Length 75 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 100ft (Line E)by the Equivalent Pipe Length (Line F)and divide by 100. <br /> Supply Fnction Loss= <br /> 3.32 �ft per 100ft X 118.8 ft + 100 = 3.9 ft <br /> H• Toto!Heod 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 Fnction Loss(Line G ) <br /> 20.0 jft + 5.0 ft + �ft + 3.9 ft = 28.9 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 28�9 feet of total head. <br /> Comments: <br />