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OSTP Basic Pump Setection Design <br /> ��NIVERSITY �*�� <br /> :=;innesota Po�►ution Worksheet OF MINNESOTA <br /> Control Agency `��;^- <br /> 1. PUMP CAPACITY Project ID: v 06.12.13 <br /> Pumping to Gravity or Pressure Distribution: � (� c�avity (i)aess�re Selection required <br /> 1. If pumping to gravity enter the gatlon per minute of the pump: �GPM (10-45 gpm) <br /> 2. if pumping to a pressurized distribution system: 47.0 GPM <br /> 3. Enter pump description_ <br /> 2. HEAD REQUIREAhENTS Gv��,�o d���n;�e <br /> A. Elevation Difference 14 ft e„��„� <br /> " swN�v�`",',�i' <br /> between pump and point of discharge: t-- _ <br /> nlet[r�p�. '-" EI•�tion% <br /> B. Distribution Head Loss: �ft � ; ' n�ir�•���M,• . <br /> ��' _� f ' ii <br /> I ; ' <br /> C. Additional Head Loss: �ft�auecosPec;a�eq�Pmenc,ecc.� �-------------------------- ------------ <br /> Table I.Friction Loss in Plastic Pipe per 100ft <br /> - - _- - - - -- -__.. <br /> D�stn ution Head Loss pi e Diameter (inchesl <br /> Gravity Distribution = Oft Fiow Rdte __ _ P _... _ <br /> (GPMI 1 1.25 ' 1.5 '- 2 <br /> . _ __ . _ , <br /> Pressure Distribution based on Minimum Average Head 10 9.1 3.1 1.; � 0.3 <br /> Value on Pressure Distribution Worksheet: �Z i �Z,g 4.3 1.8 � 0.�4 <br /> i ' <br /> Minimum Avera e Head Distribution Head Loss �.} 17.0 5.7 2.4 0.6 <br /> 1ft 5ft ib 21.8 7.3 ! 3.0 OJ <br /> 2ft 6ft �g 9.1 � 3.8 0.9 <br /> 5ft 10ft 20 ' 11.1 � 4.6 1.1 <br /> 25 � 16.8 i 6.9 1.7 <br /> D. 1.Supply Pipe Diameter. 2.0 in 30 , 23.5 � 9J 2.4 <br /> 35 12.9 3.2 <br /> 2.Supply Pipe Length: 151 ft 40 16.5 ' 4.1 <br /> E. Friction Loss in Plastic Pipe per 100ft from Table I: �5 ; 20.5 5.0 <br /> 50 i 6.1 <br /> Friction Loss= 5.44 ft per t00ft of pipe 55 i , I �•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 by adding 25%to supply pipe length for fitting loss. Suppl y Pipe Length �� ' i �� � <br /> (D.2) X 1.25=Equiva(ent Pipe Length 75 13.0 <br /> 85 ' 16.-1 <br /> 151 ft X 1.25 = 188.8 ft q5 20.1 <br /> G. Calcutate Supply Friction Loss by muttiplying Friction Loss Per f00ft (Line E)by the Equivalent Pipe Length (Line F)and divide by 100. <br /> Supply Friction Loss= <br /> 5.44 ft per 10pft X 188.8 ft - 100 = 10.3 ft <br /> H• Tota(Head requirement is the sum of the Elevation Difference (Line A),the Distribution Head Loss(Line B),Additional Head Loss(Line C),and the <br /> Supply Friction Loss(Line G ) <br /> 14.0 ft + 5.0 ft + �ft + 10.3 ft = 29.3 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected[o deliver at least 47.0 GPM(Line t or Line 2)with at least 2�},3 feet of total head. <br /> Comme�ts: <br />