Laserfiche WebLink
OSTP Basic Pump Selection Design , . � � <br /> Mi�nesota?'ollution W��.k$���t LINTVERSITY �� �-� <br /> Control Agency OF MINNESOTA �-'A-'L�" <br /> 1. PUMP CAPACITY Project ID: <br /> Pumping to Gravity or Pressure Dist�bution: Q�raviry �Pressure Selection required <br /> 1. If pumping to gravity enter the gallon per minute of the pump: �GPM (f0-45 SPm) <br /> 2. If pumping to a pressurized distribution system: 68.0 GPM <br /> 3. Enter pump description: Demand Dosing Soil Treatment <br /> 2. HEAD REQUIREMENTS a�Po�ioraur��� <br /> A. Elevation Difference 10 ft �ti � <br /> s�av`y„� <br /> between pump and point of discharge: <br /> nlet wDe Elevation:'I' <br /> B. Distribution Head Loss: �ft � e�r���re <br /> . - -- <br /> _ __: -:_. � � <br /> C. Addittondl Head Loss: �ft(duetospecialequipment,etc.) --------------------------- ------------- <br /> Table I.Friction Loss in Plastic Pipe per 100ft <br /> Distribution Head Loss Flow Rate Pi Diameter(inches) <br /> Gravity Distribution = Oft <br /> (GPM) 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 �Z,g � 4,3 1.8 0.4 <br /> Minimum Avera e Head Distribution Head Loss �4 17.0 ; 5.7 2.4 0.5 <br /> 1ft 5ft �6 21,g i 7.3 3.0 0.7 <br /> 2ft 6ft �g ! q,1 3.8 0.9 <br /> 5ft 1oft 2p 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 /> 2.Supply Pipe Length: 23 ft 35 12.9 3.2 <br /> 40 16.5 4.1 <br /> E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 20.5 5.0 <br /> 50 6.t <br /> Friction Loss= 10.78 ft per 100ft of pipe 55 ' 7.3 <br /> 60 � 8.6 <br /> F, Determine Equivolent 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 Length �� � 11.4 <br /> (D.2) X 1.25=Equivalent Pipe Length 75 � 13.0 <br /> 85 � 16.4 <br /> 23 ft X 1.25 = 28.8 ft 9� � Z� 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 /> 10.78 ft per 100ft X 28.8 ft • 100 = 3.1 ft <br /> H. Totol 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 /> 10.0 ft + 5.0 ft + �ft + 3.1 ft = 18.1 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to deliver at least (�$,Q GPM(Line 1 or Line 2)with at least �$,� feet of total head. <br /> Comments: <br />