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, <br /> ' Pump Selection Design �>���_ <br /> 'JEWAGE <br /> Worksheet T' `'�T':"'T <br /> Minnesota Pollution , <br /> Control A enc `'' f� •'����� <br /> , Equivalent Length Faeton(ft.)for PVC Pipe <br /> 10. Equivalent length of pipe fittings. Fittin�s <br /> Section 9 is for Collection Systems ONLY and does NOT need to 6e Pipe Diameter(in.) <br /> completed for individuol subsurface sewage treatment systems. Fimng Type �yg 2 3 <br /> ' Quanity X Equivalent Length Factor=Equivalent Length Gate Valve 1.07 i.38 2.04 <br /> 90 Deg Elbow 4.03 5.17 7.67 <br /> 45 Deg Elbow 2.15 2.76 4.09 <br /> Fitting Type Quantity Equivalent Equivalent Tee-Flow Thru 2.68 3.45 5.11 <br /> , Length Factor - Length(ft) �- ranc ow . t . 1 . <br /> Swing Check Valve 13.40 17.20 25.50 <br /> Gate Valve X Angle Valve Z0.10 25.80 38.40 <br /> 90 Deg Elbow X = Globe Yalve 45.60 58.60 86.90 <br /> ' - Butterfly Valve 7.75 11.50 <br /> 45 Deg Elbow X <br /> Tee-Flow Thru X - <br /> , Tee-Branch Flow X - NOTE: Equivalent length values for PVC pipe <br /> X _ fittings are based on calculations using the Hazen- <br /> Swing Check Valve Williams Equation. See Advanced Designs for SSTS <br /> ' Angle Valve X = for equation. Other pipe material may require <br /> different equivalent length factors. Verify other <br /> Globe Valve X equivalent length factors with pipe material <br /> X _ manufacturer. <br /> Butterfly Valve - <br /> , X _ NOTE:System installer should contact system <br /> Valve 10 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 /> ' B. Tota(Pipe Length =Supply Pipe Length(5.6)+Equivalent Pipe Length(9.A.) Hazen-Williams Equation for h <br /> � ft + � ft = �ft 1�.J * L * \� - l.)1.852 Q in gpm <br /> h.� T�4.8655 L in feet <br /> , C. Hazen-Williams friction loss due to pipe fittings and supply pipe(h): L D in inches <br /> 10.5 X Total Pipe Length(9.B) X (Flow Rate �Constant)''852 + Pipe Diameter'��ss <br /> ' 10.5 X �ft X (�gpm + 130)'�Z + �fY4.6655 _ �ft <br /> �1� Total Head requirement is the sum of the Elevation Difjerence (Line 3),the�istribution 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(Line 8)need ONLY be used if NOT a collection 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 /> 18.0 ft + 10.0 ft + �ft + 9.6 ft = 37.6 ft <br /> ' 3. PUMP SEIECTION <br /> A pump must be selected to deliver at least 38 GPM(Line 1 or Line 2)with at least 38 feet of total head. <br /> � I hereby certify that I have completed this work in accordance 'th all a 'cab ordinances,rules and laws. <br /> � � � I �( r �� <br /> (Designer) (Sig ature) (License tJ) (Date) <br /> , <br />