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. OSTP Pump Selection Desi�n --�. . UNIVERSITY � �`,�, �} Mi�so�ta� Pollution W��'�($heE,at OF IVIINNESOTA '�`�� 10. Equiralent length of pipe fittings. Equivalent Len�th Factors(ft.)for PVC Pips Sectian f0 is Jor Cdlection Systems ONLY and does NOT need to be Fittin�s completed far individtio!subsurfoce sewage treaGrt/snt systems. F�� ' �P��r(ie.)3 Quantity X Equivalent Length Factor=Equivalent Length Gate valve 1.07 1.38 2.04 90 Deg Eibow 4.03 5.17 7.67 Fitting Type Quantity �E�h�r Equival°nt 45 Deq Elbow 2.15 2.76 4.09 Len$th(ft) Tee-Flaw Thru 2.68 3.45 5.11 ee- ranc ow Gate Valve X � Swtng Check Vatve 13.40 17.20 25.50 90 Deg Etbow X = Angte valv�e 20.10 25.80 3g.qp 45 Deg Elbow X � Globe Valve 45.60 58.60 86.90 ButOerfly Valv�e - 7.75 11.50 Tee-Flow Thru X a Tee-Branch Flow X = NOTE:Equivalent length val�s for PVC pipe Swing Check Vatve X = fittings are based on calculations�aing the Hazen- Wiltiams Equation. See Advanced Designs for SSTS Angle Valve X = for equation. Other pipe materiat may require Gtobe Valve X a different equivalent length factors. Verify other equivalent length fadors with pipe material Butterfly Valve X = manufacturer. Valve 10 X = NOTE:System instalter sFwuld contact system Valve 11 X � desiSner if the numbe�of fittings varies from the desiqn to the actual irutallation. A. S�n of Equivalent Length due to pfpe fittiogs: C�ft Hazen-Williams Equation for h B. Total Plpe LenSth =SupptY�Pe�3�(5.B)+Equivatent Pipe Length(9.A) 1�.5 �^� y� - ��Q_��_ss �:L �� ft `�� ft a L�Jft I D4.87 C. Hazen-Williams fricti�loss d�to pipe fittings and wpply pipe(hr)� Q in gpm L in feet D in inches C=130 (10.5 + Pipe piameter'-�) X ( Flow Rate $ Constant)�'85 X Total Pipe Length(10.6) (10.5 + ��ina.s�� X ��9Pr►►+130),.as X 1._�ft =�ft �1• Tota(Head requirement is the sum of the Elewotion Difference (Line 3),the Distribution Head Loss(line 4),Additional Head Loss(line 5), and efther Supply Friction Loss(Line 9),or Fridion Loss from the Supp(y Pipe and Pipe Fitti�gs for coltection systems(Line 10.C) NOTE:S�p/y Friction Lo�ss(Line 8)need ONLY be�ed if NOT a col(ection systern. NOTE:Friction L�s from the S�ply p;pe Qr�d p�pe Fittings(Line 9.C)need ONLY be used if system is a col(ection system. 16.0 ft + 5.0 ft + ��ft + 3.4 ft m 24.4 ft 3. PUMP SELECTION A P�P must be setected to dHiver at least 29 GPM(Line t or Line 2)with at least 25 feet of total head. Comme�ts: PumP tYPe �hereby certify thffi I have c�mpleted this work in accoManoe with aN applicable or�inanc�,rules and laws. '��SOp 810 05/11 H 0 (�5�) (Sigrwture) (License!1) (Date )