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th..wun a)tnouou Pump Selection Design d" Minnesota Pollution Worksheet ,. .,� Control Agency 9. Equivalent length of pipe fittings. Equivalent Length Factors(ft.)for PVC Pipe Fittings Section 9 is for Collection Systems ONLY and does NOT need to be Pipe Diameter(in.) completed for individual subsurface sewage treatment systems. Fitting Type 11/2 2 3 Quanity X Equivalent Length Factor=Equivalent Length Gate valve 1.07 1.38 2.04 90 Deg Elbow 4.03 5.17 7.67 Equivalent Equivalent 45 Deg Elbow 2.15 2.76 4.09 Fitting Type Quantity Tee-Flow Thru 2.68 3.45 5.11 Length Factor Length(ft) Tee-Branch Flow 8.05 10.30 15.30 Swing Check Valve` 13.40 17.20 25.50 Gate Valve X = Angle Valve 20.10 25.80 38.40 90 Deg Elbow X _ Globe Valve 45.60 58.60 86.90 Butterfly Valve - 7.75 11.50 45 Deg Elbow X = Tee-Flow Thru X = Tee-Branch Flow X = NOTE:Equivalent length values for PVC pipe Check Valve X _ fittings on based calculations using the Hazen- SwingWilliams Equation. See Advanced Designs for SSTS Angle Valve X for equation. Other pipe material may require different equivalent length factors. Verify other Globe Valve X _ equivalent length factors with pipe material manufacturer. Butterfly Valve X _ Valve 10 X = NOTE:System installer should contact system designer if the number of fittings varies from the Valve 11 X = design to the actual installation. A. Sum of Equivalent Length due to pipe fittings: ft B. Total Pipe Length =Supply Pipe Length(5.6)+Equivalent Pipe Length(9.A.) + = feet h_ 0.128*L*Q1.852 C. Friction loss due to pipe fittings and supply pipe(h): 100*D4.8655 ( 0.128 X Total Pipe Length(9.6) X Flow Rate1'8-92 ) + ( 100 X Pipe Diameteri'l ) ( 0.128 X X 1.852 ) + ( 100 X 4.8655 )_ ft 10. Total Head requirement is the sum of the Elevation Difference (Line 3),the Distribution Head Loss(Line 4),Supply Friction Loss(Line 8),and Friction Loss from the Supply Pipe and Pipe Fittings-if collection system(Line 9.C) NOTE:Supply Friction Loss(Line 8)need ONLY be used if NOT a collection system. NOTE:Friction Loss from the Supply Pipe and Pipe Fittings(Line 9.C)need ONLY be used if system is a collection system. 10.0 ft + 5.0 ft + 0.0 ft + = 15.0 ft 3. PUMP SELECTION A pump must be selected to deliver at least 38 GPM(Line 1 or Line 2)with at least 15 feet of total head. I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. 06/07/09 !ph J Olson ___ 810 (Designer) (Signature) (License#) (Date)