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, <br /> � �t�STP Basic Pump Select�on Desi�n �, � � <br /> � � � L.1N�I V E1�5ITY <br /> Minnesota Poilution Worksheet OF MTNNESQTA <br /> Cantrpl A enc � <br /> 1. PUMP CAPACtTY Project I0: 15-Qd90 v f <br /> Pumping to Gravity or Pressure Distribudon: �Q c�ravtty QQ aesaxe Selectian requ4red <br /> 1 _..._.__._,._.i <br /> 1. if pumping to gravity enter the gatlon per minute af the{wmp: �GpM (10-4S gpm) <br /> 2. If pumping to a pressurized distribution system: 56.0 GPM <br /> 3. Enter pump description: <br /> 2. HEAD REQUIREMENT$ a��eia <br /> A. Elevation Difference C_Jft N,,,.�`" <br /> between pump and point of distharge: S"�P`� <br /> nl�pqw tiv�i+4un;�• <br /> 6. Distributiai Head Loss: L.�_1 ft e�xM�M� <br /> �; � � : <br /> C. AdditionalHead l.oas: �ft(duetospeciatequipment,ecc.� ` .................•----------- -------- <br /> Tabfe I.Friction Loss in Plastic Pipe per 10Qf <br /> Distributiory Head t,,oss � ��__�� i ���pi e Diameter(inchest <br /> Gravity Distribution = Oft Ftow Rate � __ P_,_ _ <br /> (GPMI 1 L25 1.5�2_ <br /> Pressure Utstribution basead eSn/�hi�imum Average Fi�ad y �p � 9,1 3.1 1.3 0.3 <br /> Vatue on Pressure DistrSbutian Workshe�t: 12 72.8 4.3 1.8 O.�F <br /> Minimum Avera �Wga,d Distributio� H�ad Loss 1� 17.Q 5.7 2.4 0.6 <br /> 1 ft 5ft 16 21.8 7.3 3.0 0.7 <br /> 2ft 6ft 18 9.1 � 3.8 0.9 <br /> Sft 1�t 20 11.1 � 4.6 1.1 <br /> 25 I 16.8 ! 6.9 1.T <br /> D. 1.SuPP�Y�pe Oiameter: 2.0 in 30 ; 23.5 i 9.7 2.4 <br /> 35 ' ` 12.9 3.2 <br /> 2.SuPp�Y�pe�ength: 65 ft 40 I 1 b.5 4.t <br /> E. Friction Loss in Plaxtic Pipe per 700ft frpm Table I: 45 l 20.5 5.0 <br /> 50 I 6.1 <br /> Friction Loss= 7.53 ft per t00ft of pfpe 55 i � � 7.3 <br /> 60 ( � j 8.b <br /> f, Deterrni�e Equivatent P(pe Length from pump discharge to soil dispersat area discharge 6S � 10.0 <br /> point. Estimate by adding 25�to supply pipe length far fitting loss. Supply Plpe Length �p � i 11.4 <br /> (AI} X t.25=Equivatent Pipe Length 7 5 i 1 3.0 <br /> 85 j ; tb.�t <br /> 65 ft X 1.25 = 81.3 ft 95 i 2Q�1 <br /> G. Catculate Suppfy Frictron Loss by muttiplying Friction Loss Per f00ft (Line E)by ihe Equtvalen[Ftpe Length (line F)and divide by 100. <br /> Suppty Frittion Loss= <br /> 7.53 ft per t0pft X 81.3 ft + 100 = 6.1 ft <br /> H• jotol Hend requirement is the sum of the Elevatfon Dlf ference (Li�e Ai,the Distribution Head Loss(Lioe B),Additional Head Loss(Line C�,and the� <br /> Frittion loss(Line G) <br /> 8.Q ft + 5A ft + �ft + 5.1 ft = 19.1 ft <br /> 3. PUMP SELECTIQN <br /> A pump must be selected to deliver at lesst �j(��d GPM(Line 1 or tine 2►with at teast ���� feet of total hea <br /> Commenu: <br />