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� ---- --- <br /> , __— --- --. . <br /> � OSTP Pump Selection Design UNIVERSITY <br /> Minnesota Pollution Worksheet OF IVIINNESOTA <br /> Control A <br /> Equ�+ralarxt Le�Eh Faetorx,�.�fpr'�Ii'�PIp��dy <br /> 10. Equivatent tength of pipe fittings. - <br /> ;:; FxE�r�+s r�, <br /> Section 10 is for Collection Sys=�s ONLY and does NOT need to be �ps���� <br /> completed for individual subsurfcce sewage treatment systems. "���i'� y�; ;� ' � ,,y <br /> Gate Valve 1.07 1.38 2 D4 <br /> Quantity X Equivalent Length Factor=Equivalent Length , <br /> �o.a�=�woyr . ::: a.o3'r . . .�.� , t�.��.,s.. <br /> Equivalent Equivalent 45 Deg Elbow 2 7 5 2:7b 4 09 <br /> Fitting Type Quantlty Length Factor Length(R) :'f,ee:,.�7au�r?hru ::' 2:f�B :3±� �r �u;�;�,...�i'., <br /> ee- ranc aw '10. <br /> Gate Valve X � "'�JW1��l�+n��� :�: �{��T�} �a ��;,ri" ����� <br /> X � Mgle Valwe 20.10 25.80 36 40 <br /> 90 Deg Elbow ;; Globe;?�a1�v�e �45:+6�1 �c�! �� .;;�@�;�, <br /> ' 45 Deg Elbow X ' Butterfly Val.ve - 7.75 11.50 <br /> Tee-Flow Thru X <br /> X _ NOTE: Equivalent length values for PVC pipe <br /> Tee-Branch Flow fittings are based on calculations using the Hazen- <br /> Swing Check Valve X - Williams Equation. See Advanced Designs for SSTS <br /> ' Mgle 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 /> � Butterfly Valve X = manufacturer. <br /> � X NOTE:System installer should contact system <br /> i Valve 10 designer if the number of fittings varies from the <br /> Valve 11 X - desiRn to the actual installation. <br /> A. Sum of Equivatent Length due to pipe fittings: ��ft <br /> Hazen-Williams Equation for h <br /> B. Total Pipe Length =Supply Pipe Length (5.B)+Equivalent Pipe Length(9.A.) h — 1 Q.5 * r�_�,�1.85 �ic L <br /> � ft +�� ft = ��ft f D4.87 � <br /> �, Hazen-Wittiams friction loss due to pipe fittings and suppty pipe(hf): Q in gpm L in feet D in inches C=130 <br /> , (10.5 .- Pipe Diamete�'67) X ( Flow Rate : Constant)''°� X Total Pipe Length(10.6) <br /> � (10.5 = ��ina.s�� X ��9Pm-130)�.ss X ��ft -L�Ift <br /> � 11. Tota!Head requirement is the sum of the E(evotion 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 /> t <br /> � NOTE:Supp(y Friction Loss(Line 8)need ONLY 6e used if NOT a collection rystem. <br /> ! NOTE:Friction Loss from the Supply Pipe and P►pe Fittings(Line 9.C)need ONLY be used if system is a collection system. <br /> i 15.0 ft + 5.0 ft + �ft + 2.b ft = 22.6 ft <br /> 1 3. PUMP SELECTION <br /> '� A pump must be selected to deliver at least 34 GPM(Line 1 or Line 2)with at least 23 feet of total head. <br /> '� <br /> ' Commenu: Pump type <br /> II <br /> I <br /> i <br />