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OSTP Basic Pump Setection Design <br /> UNIVERSITY , <br /> Minnesota Pollution Worksheet OF MINNESOTA � <br /> Control A enc "�-�n-� <br /> 1. PUMP CAPACITY Project ID: ���,p9.22 <br /> Pumping to Gravity or Pressure Distribution: O Gravny �Pressure Selection required 2 <br /> 1. If pumping to gravity e�ter the gallon per minute of the pump: ��GPM (10-45 3PmJ <br /> 2. If pumping to a pressurized distribution system: 16.0 GPM <br /> (Une 11 0/Pressure Distrl6utian) o��,p,�����s <br /> y,��„, <br /> R painl ol Aiuhnige <br /> 2. HEAD REQUIREMENTS <br /> _ -.. <br /> _.- <br /> �t�,9�,.-�- <br /> A. Elevation Difference 22 ft S�v��y�"�c'�� <br /> nlec pipe <br /> ---_._ _-,. .--_ <br /> between pump and point of discharge: ___ E��������:� <br /> � d•Nerrnce <br /> B. Distribution Head Loss: �ft � �_ . <br /> " -------------------------- ------------ <br /> C. Additional Head Loss: �ft(due to special equipment,etc.) <br /> Table I.Friction Loss in Plastic Pipe per 100ft <br /> Distribution Head Loss <br /> Flo�v Ra[e P�pe Diameter iinchesl <br /> Gravity Distribution = Oft - <br /> IGPMI 1 � 1.25 1.5 2 <br /> Pressure Distribution based an Minimum Average Head 10 9.1 3,1 1.3 0.3 <br /> Value on Pressure Distribution Worksheet: 12 12.8 ' 4.3 1.8 0.-� <br /> Minimum Avera e Head Distribution Head Loss �4 17.0 ' S.7 2.-1 O.o <br /> 1 ft Sft 16 21.8 ' 7.3 3.0 0J <br /> 2ft 6ft 18 9.1 3.8 0.9 <br /> 5ft 10ft 20 11.1 �1.6 1.1 <br /> 25 16.8 6.9 ?J <br /> D. 1. Supply Pipe Diameter: 2.0 in 30 , 23.5 9J 2.4 <br /> 2. Supply Pipe Length: 150 ft 35 12.9 3.2 <br /> 40 16.5 4.1 <br /> 45 ' 20.5 5.0 <br /> E. Friction Loss in Plastic Pipe per 100ft from Table I: 50 i 6.1 <br /> Friction Loss= 0.74 ft per 100ft of pipe 55 � � <br /> 60 8.6 <br /> p, Detertnine Equivolent Wpe 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. Supply Pipe Length �� �� ;� <br /> (D.2) X 1.25=Equivalent Pipe Length 75 �� 0 <br /> 85 16.•1 <br /> 150 ft X 1.25 = 187.5 ft G5 20.1 <br /> G. Calculate Supply 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 /> 0.74 ft per 100ft x 187.5 ft + 100 s 1.4 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 the Suppl <br /> Friction Loss(Line G ) <br /> 22.0 ft + 5.0 ft + �ft + 1.4 ft = 28.4 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to deliver at least �(� GPM(Line 1 or Line 2)with at least 29 feet of total head. <br /> Commenu: <br />