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� � _ OSTP Pump Selection Desi�n , �_, <br /> • ' ^' LTNIVERSITY � ;�, <br /> Minnesota Pollution Worksheet OF MINNESOTA ' <br /> Conirol A ent " �- ``'=�� <br /> 10. Equivalent length of pipe fittings. Equivatent Len�th Faetors(f�)for PVC Pipe <br /> F'ttNr�gs <br /> Settion f0 is for Collection Systems ONLY and dces NOT need to be p(pe Diameter(in.) <br /> campleted for individual subsurface sewage treotment systems. Fittin;Type �� Z 3 <br /> Quantity X Equivalent Length Factor=Equivalent Length Gate Valve 1.07 1.38 2.04 <br /> 90 Deg Elbodv 4.03 5.17 7.67 <br /> Fitting Type Quantity Equlvalent Equivalent 45Deg Etbow 2.15 2 76 4:09 <br /> Le�gth Factor length(ft) Tee-flow 7tuu 2:68 3:A5 5:11 <br /> ee- <br /> Gete Valve X ' Swing Check Vatve 13,40 17.20 25.50 <br /> 90 Deg Elbow X Angte Yalv�e z0.10 25.80 38.40 <br /> Globe Valve 45.60 S$:60 86.90 <br /> d5 0eg Elbow X ' Buccerfty Vatve 7:75 1 t.5o <br /> Tee-Flow Thru X • <br /> T�_B���� X NOTE:Equivalent length values for PVC pipe <br /> fittings are based on calculatlons using the Hazen- <br /> Swing Cheek Valve X ' Wiltiams Equation. See Advanced Designs for SSTS <br /> Angle Vatve X = for equation. Other pipe ma[eriat may require <br /> Globe Vatve X � differeni equivalent length factors. Verify other <br /> equivaleM length factors with pipe materiat <br /> Butterfly Valve X � manufacturer. <br /> Valve 70 X = NOTE:System installer should contact system <br /> va`�" X � designer if the number of Nttings varies from the <br /> desiqn to the actualinstatlation. <br /> A. Sum of Equivalent length due to pipe fittings: �f� <br /> Haze�-Williams Equation for h <br /> B, Totat Prpe length =Supply Pipe Length(5.8)+Equivalent Pipe Length(9.A.) �O.5 <br /> 0 ft �0 ft `�rc hs — Da.s� �`�Q=C)�.ss ,�L <br /> C, Hazen-Witliams friction loss due to pipe fittings and supply pipe(h�): Q in gpm L in feet D in inches C=130 <br /> (10.5 . Pipe Diameter°�8�) X ( Flow Rate + Constant)''B5 X Total Pipe Length(10.B) <br /> (10.5 : �i�4.s�� X �(-�9pm T�30),.e� X ��ft =�ft <br /> I-_ i <br /> 11• Total Head requirement is the sum of the E(evatfon Dtfference (Line 3),the Distributlon Head Loss(Line 4),Additional Head Loss(Line 5), <br /> and either Supply Friction Loss(Line 9),or Friction Loss from the Supply Pipe and Pipe Fittings for collection systems(Line 10.C) <br /> NOTE:Supply Friction Loss(tine 8)need ONLY be used if NOT a collettion system. <br /> NOTE:Friction Loss from!he Supp(y Pipe and Pipe Fittinqs(Line 9.C)need ONLY be used ij system is a collection rystem. <br /> 11.0 ft � 5;0 f� + �ft + 1.6 ft = 17.6 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to de[iver at least 3$ GPM(Line 1 or Line 2)with at least �$ feet of total head. <br /> Eomments: Pump type <br /> I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. <br /> Joseph J OfSon � 810 09l25/10 <br /> (t?esigner) (Signature) (License IJ) (Date) <br />