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� :. OSTP Basic Pump Selection Design � <br /> MinnesotaPallutlon Worksheet UNTVBRSITY � <br /> Control Agetu OF M I N IV$50'I'A ''�-``�.,i' <br /> 1. PUMP CAPACiTY Project ID: <br /> Pumping to Gravity or Pressure Distrtbutlon: OGravtry �w�esswre Selectfon required <br /> 1. If pumping to gravity enter the galton per minute of the pump: �GPM (f0-45 gpm) <br /> 2. If pumping to a p�essurtzed distribution system: 38.0 GPM <br /> 3. Enter pump description: <br /> 2. HEAD REQUIREMENTS �°"'"°'""` <br /> A. Elevation Difference �ft �� w,dw'""� <br /> between pump and point of discharge: ,-.--• <br /> nkt PK�' EMwuan% <br /> e. Distribution Head Loss: �tt _ e�ra,e��. <br /> C. Additional Head Lo55: �ft/duetospeclatequlpment,ecc.) ------------------_----..... _.--�---•.--- <br /> Tabie l.Frktion Loss in Plastic Pi f00ft <br /> DistribuCion Hesd i_oss Ftow Rate ____ Pi �Diameter�incfies) <br /> Gravity Oistributian � Ofi ��pµ� 1 1 25 I_ 1.5 2 <br /> .. . - <br /> ___. <br /> Pressure Distribution bas¢d on Minimum Average Head 10 9.t 3 1 j 1.3 0.3 <br /> vaiue on Pressure Distrtbution Worksheet: 12 12.8 4.3 � 1_8 0.4 <br /> Mlnimut»Av ra s Head Distributfon Nead Loss 14 47.0 5.7 � 2.4 0.6 <br /> 1ft 5ft 16 � 2i.8 � 7.3 ; 3.d 0.7 <br /> 2ft ��t 18 � 9.1 � 3.8 0.9 <br /> Sft 1Oft 20 f , 11.1 � 4.6 1.1 <br /> ?5 � i 16.8 , 6.4 t.7 <br /> D. t.Supply Pfpe Diameter. 2.0 in 30 � � 23.5 � 9.7 2.4 <br /> 35 � j ; 12.9 3.2 <br /> 2.Supply Pipe Lenqth: L�Jft 4p � ( 1b.5 4.1 <br /> E. Friction Loss in plastic Pipe per 100ft from Table I: `�5 1 20.5 5.0 <br /> 50 � 6.1 <br /> Friction Loss= 3.67 R per i00ft of pipe 5� � �'J <br /> bo ! s:e <br /> p, Determine Equivalent Rpe length from pump discharge to soil dispersal a�ea dtscharge 65 i � 10.0 <br /> point. Estimate by adding 25�to supply pipe length for fitting loss. SupA�Y p+Pe 70 ! j � T1.4 <br /> Length(D.Z)X 1.25=Equtvafent Plpe Length 75 { i 13.0 <br /> � ft X 1.25 = 50.0 ft 85 � I ! 16.4 <br /> 95 � � ! 20.1 <br /> G. Calculate Supply Friction toss by multiplying Friction loss Pe�t00Jt Iline El by the Equiva(ent Mpe Length �Une FI and divtde by 100. <br /> Supply Frictlon Loss= <br /> 3.67 ft per 100ft X 50.0 ft + 100 = 1.8 ft <br /> H. Total Hend requirement 15 the sum of the Elevation Dffference tLine A),the Distribution Head Loss�Line B),Additional Head Loss(Line C),and <br /> the Suppiy F�iction Loss ILine G) <br /> 4.0 ft + 5.0 ft + �ft • 1.8 ft = 10.8 ft <br /> 3. PUMP SELECTION <br /> A pump mus[be selected to deliver at least 3$,� GPM(Ltne 1 or Line 2►with at least ��.$ feet of total head. <br /> Comments: <br />