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. j .�.,_ OSTP Pump Selection Design �:� UNIVERSITY g�'`�` ` Minnesota Potlution Worksheet OF MINNESOTA Control A enc "=�� 10. Equivatent length of pipe fit[ings. Eqwivalent LenEth Factors(ft.)for PVC Pipe Fittings Section 10 is for Co(lection Systems ONLY and does NOT rteed to be pipe niameter(in.) comp(eted for individua(subsurface sewage treatment systems. I Fitting Type �� 2 3 Quantity X Equivalent Length Factor=Equivalent Length i Gate vatve �.0� 1.38 2.oa 90 Deq Elbow 4.03 5.17 7.67 Fitting Type Quantity Equivalent Equivalent i 45 Deg Elbav 2.15 2J6 4.09 Length Fador Length(ft) Tee-FtowThru 2.68 3.a5 5.11 i Tee-Branc i ow 1030 15.30 Gate Valve X ` i Swinq Check Valve 13.40 17.20 25.50 90 Deg Elbow X = ' Angte Valve 20.10 25.80 38.a0 � GlobeValve 45.60 58.60 86.90 i 45 Deg Elbow x a eutterfty valve - 7J5 1i.50 I Tee-Flow Thru X = � Tee-Branch Flow X = NOTE:Equivatent length values for PVC pipe Swing Check Valve X fittings are based on calculations using the Hazen- - Wil6fams Equation. See Advanced Designs for SSTS Mgle Vatve X = for equation. Other pipe materiat may require Globe Valve x _ different equivalent length factors. Verify other eyuivalent length factors with pipe material Butterfty Valve X = manufacturer. Valve 10 X = N�TE:System installer should contact system Valve 11 X � designer if the numbe�of fittings varies from the desiQn to the adual installation. A. Sum of Equivalent Length due to pipe fittings: �ft Hazen-Williams Equation for h B. Totaf Pipe Length a Supply Pipe Length(5.8)+Equivalent Pipe Length(9.A.) 1�.5 Qfc `0 rt - �n hf = ��.57 '` (�=G)t.s� �L C, Hazen-Williams friction loss due to pipe fittinvs and supply pipe(h�): Q in gpm L in feet D in inches C-130 (10.5 .- Pipe Diamecer`�67) X ( Flow Rate a Constant)''°5 X Total Pipe Length(10.6) (10.5 � �in4.a�� X (C�9Pm�130j,.a� X �ft =�ft 11• Totaf Head requirement is the sum of the Elevation DifJerence (L1ne 3),the Distribution Head Loss(Line 4),Additional Head Loss(Line 5), and either Supply Friction Loss(Line 9),ar Friction Loss from the Suppty Pipe and Pipe Fittings for collection systems(Line 10.C) NOTE:Supply Friction Loss(Lirte 8)need ONLY be used if NOT a co(lettion system. NOTE:Friction Loss from the Supply Pipe and PiPe Fittings(Line 9.C)creed ONLY be used if rystem is a collection system. 7.Q ft + 5.0 ft + �ft + 1.2 ft - 13Z ft 3. PUMP SELECTION A pump must be selected to deliver at least 3(j GPM(Line 1 or Line 2)with at least �4 feet of totat head. Comments: Pump type I hereby certify that I have completed this work in accorciance with ali applipble ordinances,rules and laws. ��.,,.�.....,�.�.... Joseph J Olson 810 02l11/11 (Designer) (Signature) (License#) (Date)