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. OSTP Pump Selection Design <br /> UNIVERSITY `� <br /> Minnesota Pollution Worksheet OF 1�/IINNESOTA � <br /> Control A enc Y.���, <br /> 10. Equivalent length of pipe fittings. � Equivatent Length Factors(ft.)for PVC Pipe <br /> Fittings <br /> Section 10 is for Co!(ection Systems ONLY and does NOT need to be <br /> completed for individual subsurface sewage treatment systems. ; Fitting Type �Pe Diameter(in.) <br /> 134 2 3 <br /> Quan[ity X Equivalent Leng[h Factor=Equivalent Length �ate valve �.07 �.;8 2.oa <br /> 90 Deg Elbow 4.03 5.17 7.67 <br /> Fittin T e Equivalent Equivalent a5 Deg Elbow Z.15 2J6 4.09 <br /> g yp Quantity <br /> Length Factor Length (ft) Tee-Flow Thru 2.68 3.a5 5.11 <br /> Tee Branch Ftow 8.05 10.30 15.30 <br /> Gate Valve X - I SNring Check Valve 13.40 17.20 25.50 <br /> 90 Deg Elbow X = Angte valve 20.10 25.80 38.40 <br /> Gtobe Valve 45.60 58.60 86.90 <br /> 45 Deg Elbow X - ButterFly valve 7J5 11.50 <br /> Tee-Flow Thru X = <br /> Tee-Branch Flow X - NOTE: Equivalent length values for PVC pipe <br /> fittings are based on calculations using the Hazen- <br /> Swing Check Valve X - Williams Equation. See Advanced Designs for SSTS <br /> Angle Valve X = for equation. Other pipe material may require <br /> Gtobe Valve X = different equivalent length factors. Verify other <br /> equivalent length factors with pipe material <br /> Butterfly Valve X = manufacturer. <br /> Valve 10 X = NOTE: System installer should contact system <br /> designer if the number of fittings varies from the <br /> Valve 11 X - design to the actual installation. <br /> A. Sum of Equivalent Length due to pipe fittings: ��ft <br /> Hazen-Williams Equation for h <br /> B. Toto(Pipe Lenqth =Supply Pipe Length (5.6)+Equivalent Pipe Length (9.A.) 1�� j <br /> jl = � ���- ��i.s� ;� j <br /> � ft + � ft =�ft i D-t.57 �: <br /> C. Hazen-Williams 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°'B7) X ( Flow Rate : Constant)'�as X Total Pipe Length (10.6) <br /> (10.5 = �ina.e� ) X (��gPm=130)'_es X �ft =�ft <br /> L.�I <br /> 11• Totof Heod requirement is the sum of the E(evation Difference (Line 3),the Distribution 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:Supp(y Friction Loss(Line 8)need ONLY be used if NOT a coltection system. <br /> NOTE:Friction Loss from the Supply Pipe and Pipe Fittings(Line 9.C)need ONLY be used if system is a collection system. <br /> 6.0 ft + 5.0 ft + �ft + 2,2 ft = 13.2 ft <br /> 3. PUMP SELECTION <br /> A pump must be selected to deliver at least �$ GPM(Line 1 or Line 2)with at least �4 feet of total head. <br /> Comments: Pump type <br /> I hereby certify that I have completed this work in accordanc with all applicable ordinances,rules and laws. <br /> ��..__..---•--�-"__.__...._____ _ <br /> Joseph J Olson �,,-�,*.°''S� 810 12/29/10 <br /> (Designer) '�< (Signature) (License#) (Date) <br />