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y Pump Selection Design ONSITE SEWAGE Minnesota Pollution Worksheet PROGRAM TREATMENT Control Agency Equivalent Length Factors(ft.)for PVC Pipe 9. Equivalent length of pipe fittings. Fittings Section 9 is for Collection Systems ONLY and does NOT need to be Fitting Type Pipe Diameter(in.) completed for individual subsurface sewage treatment systems. 114 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 45 Deg Elbow 2.15 2.76 4.09 Fitting Type Quantity Equivalent Equivalent Tee-Flow Thru 2.68 3.45 5.11 Length Factor Length(ft) Tee-Branch F16W 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 _ Globe Valve 45.60 58.60 86.90 90 Deg Elbow X 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 _ fittings on based calculations using the Hazen- Swing Check Valve X Williams 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 X _ manufacturer. Butterfly Valve X = NOTE:System installer should contact system Valve 10 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.) C� + _ feet h_ 0.128*L*Q1.112 C. Friction loss due to pipe fittings and supply pipe(h): 100*D4.8655 ( 0.128 X Total Pipe Length (9.B) X Flow Rate""' ) _ ( 100 X Pipe Diameter4.8655 ) ( 0.128 X I I 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. 5.0 ft + 5.0 ft + D2.6:]ft + = 22.6 ft 3. PUMP SELECTION A pump must be selected to deliver at least 31 GPM(Line 1 or Line 2)with at least 23 feet of total head. I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. C2 I U 6 c J/ q� p AA /�z� 7/Z,7/ (Designer) (Signature) (License#) (Date)