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� , � � OSTP Basic Pump Setection Design uN � <br /> MinnesotaPollutbn I ERSITY <br /> �� � Worksheet OF MINNESOT� � <br /> 1. RUMP CAPACITY 1-' <br /> ProjpctlD: v Ob.12.13 <br /> Pumping to Gravity or Pressure Distribution: Q �ravny Q qesnre Selection required <br /> 1. It pumping to gravity enter the gallon per minute of the pump: �GPM /10-45 gpm) <br /> 2. if pumping to a pressurized distribution system: 36.0 GPM <br /> 3. Enter pump description: � <br /> 2. HEAp REQUIREMEN75 a�maar w� <br /> A. Elevation Difference g � <br /> ��ft � <br /> between pump and point of discfiarge: ww`'+a"` <br /> ft �� EtlNflFMte� ,,. <br /> B, Distribution Head Loss: r 5� ---- <br /> �_. <br /> C. Additional Head loss: �ft(due co spec;a�equipmenc,ecc.) ----------------------•- <br /> Distriisution Head t�oss Table I.FNctlon Loss in Plastlt Pi per t00ft <br /> Gravtty Dtstrtbuttor► @ oft Flow Race Pi Dfarrneter �inches) <br /> IGPM) 1 1.25 1.5 ! 2 <br /> Pressure Distrlbution based on Min9mum Average Nead 10 9.1 3.1 1.3 0.3 <br /> Value on Preswre Oisuibutlon Worksheet: <br /> 12 12.8 4.3 1.8 0.4 <br /> Minitnurr�Ave�a �We�d Distributbn H�ad Lo�ss, 14 17.0 5.7 2.4 ' 0.6 <br /> 1ft 5ft 16 2�,g 7.3 3.0 0.7 <br /> 2ft 6ft <br /> 5ft 1�t 18 9.1 ' 3.8 0.9 <br /> 20 11.1 4.6 1.1 <br /> �5 16.8 6.9 1.7 <br /> D. 7.Suppty Pipe Diameter: 2.0 in 30 23.5 9.7 2.4 <br /> 2.Supply Pipe Length: 70 ft 3S 12.9 3.2 <br /> � 16.5 4.1 <br /> E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 � 20.5 5.0 <br /> � 6.1 <br /> Friction Loss= 3.32 ft per 10pft of pipe SS �,3 <br /> � I 8.6 <br /> F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area discha�e 65 , �p� <br /> point. Estlmate by adding 25%to supply pipe tength for fitting loss. Supply Aipe length �� � <br /> (D.2) X 1.25=Equivalent Pipe Lenqth ��•4 <br /> 75 I 13.0 <br /> �0 ft X 1.25 = 87.5 fi gs 14.4 <br /> 95 20.1 <br /> G. Catculate Suppty Friction Loss by multiplying Friuion Loss Per 1DOft (Line E)by the£quivolent Prpe Length �Line F)and divide by 100. <br /> Supply Friction Loss= <br /> 3.32 ft per 100ft X 87.5 ft f 100 � 2.9 ft <br /> H• Tota(Hend requirement is the sum of the Elevation Dijference {Line A),the Distnbution Mead Loss(Line B),Additional Head Loss(Line C),and the <br /> Supply Friciion Loss(Line G ) <br /> 8.0 ft + 5.0 ft * �ft + 2.9 ft = 15.9 ft <br /> 3. PUMP SELECTlON <br /> A pump musi be selected to deliver at least 36.� GPM�Line 1 or Line 2)with at teast 1 5.9 feet of toWt head. <br /> Comments: <br />