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OSTP Basic Pump Selection Design uN��ERs�TY <br /> Minnesota Pollution Worksheet OP MINNESOTA �''^ <br /> Control Agency ,��,�� <br /> 1. PUMP CAPACIIY Project ID: v 06.12.13 <br /> Pumping to Gravity or Pressure Distribution: �; c�avity (��Ress�e Selection required <br /> 1. If pumping to gravity enier the gallon per minute of the pump: ��GPM (10-45 gPm) <br /> 2. If pumping to a pressurized distribution system: 31.0 GPM <br /> 3. Enter pump description: <br /> 2. HEAD RE UIREMENTS �«=a,�*��>r5���m <br /> Q 6 pomt of tlncha�ge <br /> A. Elevation Difference �ft `^Q,a <br /> SU�`Y„n�¢ . <br /> betwee�pump and point of discharge: __ <br /> II--tt nlel pipc ElevaYron%'' <br /> B, Distribution Head Loss: � � I ft r � • � dJfeirme <br /> L__1 L ; ' � i : <br /> �i <br /> C. Additional Head Loss �ft(aue co speciat equipmenc,etc.) �-1 .I <br /> F------------------------ •-�--•------ <br /> Table I.Friction Loss in Plastic Pipe per 100ft <br /> -- - -i _--- ._ _._. <br /> stnbution Head Loss Pi e D�ameter Iinchesl <br /> Gravity Distribution = Oft Flo�v Rate ; ._ G___ �___ <br /> IGPM1 1 1 25 1 5_ � 2 <br /> Pressure D55tribution based on Minimum Average Head 10 9.1 3.1 � 1.3 4 D.3 <br /> Value on Pressure Distribution Worksheet: 12 12.8 4.3 i 1.8 j 0.4 <br /> Minimum Avera e Head Distribution Head Loss 14 17.0 5.7 � 2.4 i 0.6 <br /> 1ft Sft 1b ' 21.8 7.3 i 3.0 � 0.7 <br /> 2ft 6ft 78 9.1 3.8 0.9 <br /> Sft 'i Oft 20 ' 11.t � 4.6 1.1 <br /> i <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 � i i2.9 ;.2 <br /> 2.Suppty Pipe Length: 70 ft 4p % ; 16.5 i 4.1 <br /> E. Friction Loss in Plastic Pipe per 100ft from Table I: '�5 ', I�� 20.5 ! 5.0 <br /> 50 ' � � b.1 <br /> Fnction Loss= 2.52 ft per 100ft of pipe 55 ' �•3 <br /> 60 ' 8.6 <br /> F, Determine Equivalent Pipe Length from pump discharge to soil dispersat area discharge 65 I 10.0 <br /> point. Estimate by adding 25%to supply pipe(ength for fitting toss. Suppl y Pipe Length 70 � � 11.4 <br /> (D.2) X 1.25=Equivalent Pipe Length 75 ., , �3 � <br /> 85 I j 1b.4 <br /> 70 ft X 1.Z5 = 87.5 ft 95 j 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 Friction Loss- <br /> 2.52 ft per 100ft X 87.5 ft 100 = 2.2 ft <br /> H- Totof Heod requirement is the sum of the Eievation Drfference (Line A),the Distribution Head Loss(Line B),Additional Head Loss�Line C),and the <br /> Supply Friction Loss(Line G) <br /> 8.0 ft + 5.0 ft + �ft + 2.2 ft = 15.2 ft <br /> 3. PUMP SELECTION <br /> A pump must be seleded to deliver at least 3�.Q GPM(Line 1 or Line 2)with at least �5,2 feet of total head. <br /> Comments: <br />