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. � OSTP Basic Pump Selection �esign <br /> U1V IVERSt"CY <br /> Minrtesota Pollution Warksheet OF �IINNESOTA <br /> Cantrot A ��,,,� <br /> 1. RUMP GAAACI7Y Pea�ect tD: v 06.12.13 <br /> Pumping ta Gravrty or Pressure Distrlbutian; Q trevity Q aesare Selection required <br /> 1. If pumping to gravity enter the gallon per minute af t#�e purnp: �GpM (td-45 gpm) <br /> 2. If pumping to a pressurized distribution system: 23.0 GPM <br /> 3. Enter pump descnption: <br /> 2. HEAD REQUIREMENTS ��of�, <br /> A. Elevation Difference 19 {� � "" <br /> between pump and poiot o(discharge: �'� <br /> B. Distributian Head Loss: ��ft <br /> � �mN�erer�rce,r'•` <br /> C. Additiona!Head Loss: ��€t fduecospeciatequ;pme�,c,ecc.� ' ----•--•------............... .............. <br /> Table t.FNttion Lass#n Plastic Plpe�er t�ft <br /> Dis�tribut�an He�ad t�as <br /> GravlLy Diste~ibutlon m Oft F�ow Rate T�.p�Diameter Iinchesl <br /> t��r�� � �.z� � z <br /> Pressure t3lstributior� tsaseci c�Artinlrrtcrrrs Average �iead 1C� ` 9�.f 3.1�� °.�1.3�{ 0.3 <br /> �atu�on Pressur�C►isLributior►Wc�rkshe�et: 12 12.8 43 t.8 I Q.4 <br /> Mrinirrtuet�I►vera e Hemid ;Dfs�riEsut�t� ti+s�ad;Loss 1 4 1'7.0 5.7 2.4 � 0.6 <br /> ��t �`�� f 6 � 21.8 7.3 3.0 � 0.7 � <br /> 2ft ��t 18 9.1 3.8 � Q.9 <br /> g�t 't tJft �� � 11.1 � 4.6 � f.t <br /> 25 ' f6.8 ; 6.4 • 1.7 <br /> D. 1.Suppty Pipe Oiameter: 2.0 in 3fI �3.5 9.� � 2.4 <br /> �� ' 12.9 3.2 <br /> 2.Supply Pipe Lengtfi: 235 ft � � �$.� � 4.i <br /> E. Fridion Loss in Ptastic Pipe per iOAft from Tabte E: `�� I i 2f}.5 5.0 <br /> � i � � 6.1 <br /> Friction Loss= 1,45 ft per 700ft of pipe 5� 7.3 <br /> � � � 8.G <br /> F. Determine EquivaEent Pipe Lenqth from pump discharge to soit dispersa€area discharge �yg � , , rt�.� <br /> point. Estimate by addirsg 25%to supply ptpe tenqth for fitting loss. Sup�ly Prpe Length �p � ( � ,�� 4 <br /> (D.2) X 1.25=Equivatent Pipe LengtM 75 ( <br /> ' f 13.� <br /> 235 ft - X 7.25 � 293.8 {� �� � [6•4 <br /> 9� � 20.t <br /> G. Calwlate Su�pty Frrction tass by rnuttiplying Friction loss Per tOQft (line Ea by the Equivrr#ent Pipe tength (Line F)and divide by 100. <br /> Supply Frtction Loss= <br /> t.45 fC per 10dit X 293.8 fi + 100 = 4.3 ft <br /> H• 7ofvt Nead requirement is the sum af the Eteuotion t3fjference (Line Ay,the Distnbutio�Head Loss(Line B►,Additiona[Head Loss(Line C},and the <br /> Suppfy Frictian Loss(Liae G ) <br /> t9.0 ft - 5.0 ft + ��ft + 4.3 ft = 28.3 ft <br /> 3. PUN1P SELECTtON <br /> A pump must be selected to detiver ai least ,23.Q GP�41 f Line i ar Line 2)with at teast �$�3 feet of tatal head. <br /> Camments: <br />