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OSTP Pump Setection Design UNIVERSITY Mi�nesota Pollutlon Worksheet OF MINNESOTA � j Control A enc d i� 10. Equivalent length of pipe fittings. Equivatent Len�th Factors(ft.)for PVC Pipe Fitti�y�s Section f0 is for Co(tection Systems ONtY and dces NOT need to be p�p�pameter(in.) completed for itfdividuo!sub.wrface sewqge treatrnent rystems. Fitting Type 1 S4 2 3 Quantity X Equivalent Length Factor=Equivalent Length Gate valve 1.07 7.38 2.04 90 Deg Elbo�w 4.03 5.17 7.67 Fitting Type Quantity Equivalent Equivalent 45 Deg Etbow 2.15 2.76 4.09 Length Factor Length(ft) Tee-Flaw Thru 2.68 3.45 5.11 ee- ranc ow 1 . 0 Gate VaNe X - Swing Check Vatve 13.40 17.20 25.50 90 Deg Elbow X = Angle vatve 20.10 z5.80 38.40 Gtobe Valve 45.60 58.60 86.90 45 Deg EtbOw X - eutterfty Valve - 7J5 11.50 Tee-Flow Thru X = Tee-Branch Flow X = NOTE: Equivalent length values for PYC pipe fittings are based on calculations using the Hazen- Swing Check Valve x - Witliams Equation. See Advanced Designs for SSTS Angte Vatve X = for equation. Other pipe material may require Gtobe Valve X _ different equivalent length factors. Verify other equivalent length factors with pipe material Buttertly Valve X = manufacturer. Yalve 10 X = NOTE:System instatler should contact system Valve 11 X _ designer if the number of fittings varies from the desiqn to the actualinstallation. 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 � fc ,. � fc = �fc hr - Da.s� *�Q=C)�.as *L �, Hazen-Will9ams friction toss due to pipe fittings and supply pipe(h,): Q in gpm L in feet D in inches C=130 (10.5 = Pipe Diameter'�87) X ( Ftow Rate = Constant)''85 X Totat Pipe Length(10.B) (10.5 : ��ina.s�� X (��9Pm+130)i.es x �ft =�ft 11• Total Head requirement is the sum of the Elevation 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 Suppty Pipe and Pipe Fittings for collection systems(Line 10.C) NOTE:Supply Frictron Loss(line 8)need ONLY be used if NOT a co[lection system. HOTE:Friction Loss from the Supp(y Pipe and Pipe Fittings(Line 9.C)necd ONLY 6e used if system is a collection system. 10.0 ft + 5.0 ft + �ft * 5.4 ft = 20.4 ft 3. PUMP SELECTION A pump must be setected to detiver at teast 36 GPM(Line 1 or Line 2)with at least 2� 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 810 04/09/10 (Designer) (Signature) (License#) (Date►