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�Ki� � <br /> � � OSTP Pump Selection Design UNIVERSITY <br /> Minnes�a Pdlution Worksheet OF MINNESOTA <br /> Control <br /> ��.- a.. <br /> 10. Equivalent Length of pipe fittings. �� k <br /> ._ :. _ .. <br /> Section 10 is for Collection Systems ONLY and dces NOT need to be j'" • <br /> comp(eted for individual subsurfnce sewage treatment systems. "� • <br /> Gate Yabve 1..09 1:38 2:D?I <br /> Quantity X Equivatent Length Factor=Equivalent Length „ <br /> Equivalent Equlvalent ,��45 E�S E►bov.' 2.1�5: •2.7b .�{�E�9. <br /> Fitting Type Q�a^��Y Length Factor Length (ft) <br /> �.- aw <br /> Gate Valve X � <br /> 90 Deg Elbow X a ~ s�r�gleYalve 20:ta 2a.80 $Bir�Q ' <br /> 45 Deg Elbow X ` 8uuerPkY Yalve - 7.:T5 11.5Q <br /> Tee-Flow Thru X 6 <br /> X � NOTE:Equivalent length vaLues for PVC pipe <br /> Tee-Branch Flow fittings are based on calculations using the Hazen- <br /> Swing Check Valve X a Witliams Equation. 5ee Advanced Des9gns for SSfS <br /> Mgle Valve X = for equation. Other pipe materiat may require <br /> different equivalent length factors. Vedfy other <br /> Globe Velve X 6 equivalent length factors with pipe materiat <br /> Butterfty Valve X = manufacturer. <br /> X � NOTE:System instatler shou{d contact system <br /> Valve 1D designer if the number of fittings varies from the <br /> Valve 11 X - desiRn to the actual installation, . <br /> �� _ _ _.. _ _ <br /> _. _ _ _ n <br /> A. Sum of Equivalent Length due to pipe fittings: <br /> Hazen-Williams Equation for� <br /> g. Totol Plpe Length =Supply Pipe Length(5.6)+Equivalent Pipe Length(9.A.) h — 1�.5 *��_C�l,g� *L <br /> � ft +�ft c(_' ft f D 4.87 <br /> �� <br /> �, Hazen-Williams friction loss due to pipe fittingsand supply pipe(hf): Qin gpm L in feet D in inches C�'13D <br /> (10.5 = Pipe Diameter''67) X ( Flow Rate = Constant)''85 X Total Pipe Length(10.6) <br /> (10.5 f �ina.e�� X ��9Pm+130)�as X r�{� .�ft <br /> L.---.— <br /> 11. Total Need requirement is the sum of the Elevatien Difference (Line 3),the Distribution Head Loss(Line 4),Additional Head Lnss(Line 5), <br /> and either Supply Friction Loss(Line 9.),or Friction Loss from the Supply Pipe and Pipe Fittings for colLection systems(Line 10.C) <br /> NOTE:Supply Friction Loss(Line 8)need ONLY be used if NOT a collection system. , <br /> NOTf:Friction Loss from the Supply Pipe and PiPe Fittings(Line 9.C)necd ONLY be used if system is a collection rystem. <br /> 10.0 ft + 5.0 ft + �—�ft + 1.1 ft = 16.1 ft <br /> 3. PUMP SELECTI�N <br /> A pump must be setected to deliver at least 33 GPM{Line 1 or Line 3)with at Least �7 feet of total head. <br /> Comments: Pump type . <br /> .... . i: <br /> I <br /> { <br /> � <br /> ± <br /> j. <br /> � <br /> , i <br /> i <br /> � <br /> - j <br /> � 1 <br /> 1 <br /> � . . . . . . . . . . . . . . .. .. .. . - j.. <br /> ._.. . .. . . . . . . . . . i. <br />