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� � OSTP Pump Setection Design UNIVERSITY - Minnesota Poilution Worksheet OF MINNESOTA "' Control A enc ��1� 10. Equivalent length of pipe fittings. Equivalent Length Factors(ft.)for PVC Pipe Fittings Section 10 is for Collection Systems ONLY and does NOT need to be completed for individua!subsurfnce sewage treatment systems. Fitting Type �Pe Diameter(in.) 1 Yz 2 3 Quantity X Equivalent Length Factor=Equivalent Length Gate valve 1.07 1.38 2.04 90 Deg Elbow 4.03 5.17 7.67 Fitting Type Quantity Equivalent Equivalent 45 Deg Elbow 2.15 2.76 4.09 Length Factor Length (ft) Tee-Flow Thru 2.68 3.45 5.71 Tee-Branc F ow 8.05 10.30 15. 0 Gate Valve X - Swing Check Vatve 13_40 17.20 25.5Q 90 Deg Elbow X = Angle valve 20.10 25.80 38.40 Gtobe Valve 45.60 58.60 86_90 45 Deg Elbow X - Butterfly Valve - 7.75 11.50 Tee-Ftow Thru X = Tee-Branch Flow X = NOTE: Equivatent length values for PVC pipe fittings are based on 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 Globe Valve X = different equivalent length factors. Verify other equivatent length factors with pipe material Butterfly Valve X = manufacturer. Valve 10 X = NOTE: System installer should contact system designer if the number of fittings varies from the Valve 11 X - desiQn to the actual installation. A. Sum of Equivalent Length due to pipe fittings: �ft Hazen-Williams Equation for h B. Total Pipe Length =Supply Pipe Length (5.6)+Equivalent Pipe Length (9.A.) 1�.5 ( � ft + � ft - �ft h.r D4.87 *lQ=C�t_85 ,k L C. Hazen-Wiltiams friction loss due to pipe fittings and suppty pipe(hf): Q in gpm L in feet D in inches C= 130 (10.5 .- Pipe Diameter4�87) X ( flow Rate : Constant)1�85 X Total Pipe Length (10.6) (10.5 : �ina.a� � X (�gPm=130)�.as X �ft =�ft �1• Toto(Head requirement is the sum of the E(evation Difference (Line 3),the Distribution Head Loss(Line 4),Additional Head Loss(Line 5), and either Supply friction Loss(Line 9),or Friction Loss from the Supply Pipe and Pipe Fittings for collection systems(Line 10.C) NOTE:Supp(y Friction Loss(Line 8)need ONLY be used if NOT o collection system. NOTE:Friction Loss from the Supply Pipe and Pipe Fittings(Line 9.C)need ONLY be used if system is a co(lection system. 12.0 ft + 5.0 ft + �ft + 4.7 ft = 21.7 ft 3. PUMP SELECTION A pump must be selected to deliver at least 36 GPM(Line 1 or Line 2)with at least 22 feet of total head. Comments: Pump type I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. Joseph J Olson .i''"%`^�'��V N 810 10/06/10 (Designer) (Signature) (License#) (Date)