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OSTP Basic Pump Selection Design <br /> Minnesota P+�Intion Worksheet UNI VBRSITY <br /> �o� OF MINNESOTA ��:�'�'"' <br /> i,.r. 1. PUMP CAPAGIIY Project ID: <br /> Pumpdn�to Gravky or Pressure Distributio�: 0 cxa�nty Q areRswe Selection required <br /> 1. If pwnpfng to gravity enter the gallon per minute of the pump: �GPM (f0-45 gpm) <br /> 2. If pumping to a pressurized distribution system: 36.0 GPM <br /> 3. Enter pump descriptlon: <br /> 2. HEAD REQUIREMENTS �`^°''"°� <br /> A. Elevation Difference 11 ft � <br /> smvd'�w"` <br /> between ptanp and point of discharge: <br /> v� �;'. <br /> B. Disuibution Head Lass: �ft ---- <br /> C. Addltlonal He3d LO55: �ft�due to spectat equ�vment,etc.) ----------------------------- -------------• <br /> Tabte I.F�ictton Loss in Ptastic 100tt <br /> Diaerlbutlon Head Voss <br /> Gravity Distcibution � Oft Flow Rate P1 DiameteK(inches) <br /> {GPM) 1 1.25 1.5 2 <br /> Pressure Distributlon based o�Minimum Average He� 10 9.1 3.1 1.3 �.3 <br /> Value on Peessure Distributian Worksheet: �2 �Z,g 4.3 1.8 U.4 <br /> Mnimum Avera e H�d Qistribution H�td Lou �4 17.Q 5J 2.4 0.6 <br /> 1ft 5ft 16 21.8 7.3 3.0 0.7 <br /> 2ft 6ft 18 9.1 3.8 �.4 <br /> Sft 10ft 20 11.1 4.b t.1 <br /> 25 16.8 6.9 t.7 <br /> D. t.Supply Pipe Dtameter. 2.0 in 30 23.5 9.7 2.4 <br /> �"' 2.Supply Pipe Ler�gth: �ft qp 16.5 4.1 <br /> E. FrlcHon Loss in Plastic Pipe per 1OOft from Table 1: �5 20.5 5.0 <br /> 50 6.1 <br /> Friction Loss= 3.32 ft per 1�ft of plpe 55 7.3 <br /> 60 8.6 <br /> p, Detem►ine EqulvQten!Plpe Length from ptxnp discharge to soft dispersal area discharge 65 10.0 <br /> point. Estimate by adding 25`.K to supply pipe Length for NtUng lass. Su�ly Alpe Longth �a 11.4 <br /> (D.2) X 1.25-EqutHotent Plpe Length � 13 Q <br /> 85 16.4 <br /> 75 ft X 1.25 = 93.8 ft qg 20.1 <br /> G. Calculate Supply Frictia�Loss by multiplying Frictfon Lass Per f00ft (Line E}by the Equi�alent Pipe Length (Line F)and divide by 100. <br /> �P�Y Friction Loss= <br /> 3.32 ft per100ft X 93.8 ft + 100 = 3.1 ft <br /> H• Tota!Head requlrerr�ent is the sum of the£(evctlon Difrerence (�ine A),the Distrtbution Head Loss(Line B),Additional Head Loss(Line C),a�d <br /> the Suppiy Friction Loss(Line G) <br /> 11.0 ft + 5.0 ft + �ft + 3.1 ft = 19.1 ft <br /> 3. PUMP SELECTIQN <br /> A pump must be setected to deliver at least 36.Q GPM(Line 1 or Line 2)with at least 1 g.� feet of totat head. <br /> Comments: <br /> �-. <br />