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OSTP Pump Selection Desi�n UNIVERSITY Mlnnesota Pollution Worksheet OF MINNESOTA - Control A enc � `�L' 1. PUMP CAPACITY A. Pumping to Gravity or Pressure Distribution: O c�ravity OO R-essure 2 1. If pumping to gravity enter the gatlon per minute of the pump: �GPM 2. If pumping to preswre, is the pump for the treatment system or the collection system: �r�a�,c srsrem O ca�,sysc� � 3. If pumping to a pressurized treatment system,what part or type of system: ❑Soit Treatment Unit ❑Media Filter ❑Other 4. It pumping to a pressurized distnbution system: 36.0 GPM /Line 1 f of Preswre Distribution or Line f0 of Non-Level or enter if Co(lxt3on System) 2. HEAD REQUIREMENTS veaanent sysrem 3. Etevation Difference 10 ft &point ot disdwrge between pump and point of dixharge: `a NOTE:IFsystem is nn individuat subwrface sewage treatment we��"�� system,complete steps 4-9. If sysYem is a Col(ection System, nletprye m ��;�� skip steps 4,5, 7 ond 8 and go to Step f0. `��1Y1e i I ,' i 4. Distribution Head Loss: �ft �-_ ..� ----------------------------- -------------� 5. Additional Head Loss: �ft(due to special equipment,etc.} Distribution Head �oss Fnct�on Loss�n astic P�pe per Gravity Distribution = Oft C=130 Nominal Pipe Diameter Pressure Distribution based on Minimum Average Head F aw Rate value on Pressure Distribution Worksheet: GPM 1 1'/4 114 2 3 Minimum Avera e Head Distribution Head Loss �p 9.11 3.08 1.27 0.31 -- �ft 5ft �2 12.77 4.31 1.78 0.44 -- 2ft 6ft 5ft �pft �4 16.89 5.74 236 0.58 - 16 --- 7.36 3.03 0.75 0.10 6. A.Supply Pipe Diameter: 2.0 in �g --- 8.14 3.76 0.93 0.13 B.Supply Pipe Length: 130 ft 2O --- 11.11 4.'S8 1.13 0.16 25 -- 16.79 8.92 1.71 0.24 7. Based on Friction Loss in Plastic Pipe per 100ft from Tabte I: 30 --- -- 9.69 2.39 0.33 Friction Loss= 3.32 ft per 100ft of pipe 35 --- -- 12.90 3.18 0.44 40 --- -- 16.52 4.07 0.57 g_ Determine Equivalent Pipe Length from pump discharge to soil dispersal 45 --- -- --- 5.07 0.70 area discharge point. Estimate by adding 25%to supply pipe length for fitting toss. Supply Pipe length(5.B) X 1.25=Equivalent Pipe Length 50 --- --- --- 6.16 0.86 55 -- -- --- 7.35 1.02 130 ft X t.25 = 163.0 ft 60 --- --- --- 8.63 1.20 9. Calculate Supply Friction Loss by multiptying Friction loss Per i00ft (Line 6)by 65 --- --- --- 10.01 1.38 Supply Friction Loss= 7O --- --- --- 11.48 1.60 3.32 ft per 100ft X 160.0 ft - t00 = 5.4 ft