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s�..w Basic Pump Selection Design Worksheet M C N T OLA AGENCY POLLUTION <br />CONTROL AGENCY <br />1. PUMP CAPACITY L Project ID: v 04.01.2020 <br />Pumping to Gravity or Pressure Distribution: Pressure <br />A. If pumping to gravity enter the gallon per minute of the pump: GPM (10 - 45 gpm) <br />8. If pumping to a pressurtzed distribution system: 36.0 GPM <br />C. Enter pump description: <br />2. HEAD REQUIREMENTS aad■dd�^ u <br />A. Elevation Difference ft WA <br />Baa <br />between pump and point of discharge: <br />B. Distribution Head boss: 5 ft I <br />C. Additional Head Loss: ft (due to saeciai egopment, etc.) ._..----- <br />Table I.l:riction Loss in Plastic Pamper 100ft <br />Distribution Head Loss <br />Gravity Distribution = Oft <br />Pressure Distribution based on Minimum Average Head <br />Value on Pressure Distribution Worksheet: <br />Minimum Avera a Head Distribution Head Loss <br />1ft 5ft <br />2ft Eft <br />5ft 1Oft <br />25 16.8 6.9 <br />D. 1. Supply Pipe Diameter: 2.0 in 30 23.5 9.7 <br />35 12.9 <br />2. Supply Pipe Length: 75 It 40 16.5 <br />E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 20.5 <br />50 <br />Friction Loss = 3.32 ft per 100ft of pipe 55 <br />60 <br />F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area 65 <br />discharge point. Estimate by adding 25% to supply pipe length for fitting loss. 70 <br />Supply Pipe Length X 1.25 - Equivalent Pipe Length 75 <br />85 <br />75 ft X 1.25 93.8 ft 95 <br />G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft by the Equivalent Pipe Length and divide by 100. <br />Supply Friction Loss - <br />3.32 <br />It per 100ft X 93.8 It 100 = 3.1 ft <br />-2-- <br />0.3 <br />2_0.3 <br />0.4 <br />0.6 <br />0.7 <br />0.9 <br />1.1 <br />1.7 <br />2.4 <br />3.2 <br />4.1 <br />5.0 <br />6.1 <br />7.3 <br />8.6 <br />10.0 <br />11.4 <br />13.0 <br />16.4 <br />20.1 <br />H. Total Head requirement is the sum of the Elevation Difference + Distribution Head Loss, + Additional Head Loss + Supply Friction Loss <br />8.0 ft 5.0 ft + E::::::::]ft + 3.1 ft = 16.1 ft <br />3. PUMP SELECTION <br />A pump must be selected to deliver at least 36.0 GPM with at least 16.1 feet of total head. <br />Row Rate <br />(GPM) <br />Pi a Dfameter <br />(in <br />1 1.2_5_ <br />1.5 <br />1.3 <br />10 <br />9.1 3.1 <br />12 <br />12.8 4.3 <br />1.8 <br />14 <br />17.0 5.7 <br />2.4 <br />16 <br />21.8 7.3 <br />3.0 <br />18 <br />9.1 <br />3.8 <br />20 <br />11.1 <br />4.6 <br />25 16.8 6.9 <br />D. 1. Supply Pipe Diameter: 2.0 in 30 23.5 9.7 <br />35 12.9 <br />2. Supply Pipe Length: 75 It 40 16.5 <br />E. Friction Loss in Plastic Pipe per 100ft from Table I: 45 20.5 <br />50 <br />Friction Loss = 3.32 ft per 100ft of pipe 55 <br />60 <br />F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area 65 <br />discharge point. Estimate by adding 25% to supply pipe length for fitting loss. 70 <br />Supply Pipe Length X 1.25 - Equivalent Pipe Length 75 <br />85 <br />75 ft X 1.25 93.8 ft 95 <br />G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft by the Equivalent Pipe Length and divide by 100. <br />Supply Friction Loss - <br />3.32 <br />It per 100ft X 93.8 It 100 = 3.1 ft <br />-2-- <br />0.3 <br />2_0.3 <br />0.4 <br />0.6 <br />0.7 <br />0.9 <br />1.1 <br />1.7 <br />2.4 <br />3.2 <br />4.1 <br />5.0 <br />6.1 <br />7.3 <br />8.6 <br />10.0 <br />11.4 <br />13.0 <br />16.4 <br />20.1 <br />H. Total Head requirement is the sum of the Elevation Difference + Distribution Head Loss, + Additional Head Loss + Supply Friction Loss <br />8.0 ft 5.0 ft + E::::::::]ft + 3.1 ft = 16.1 ft <br />3. PUMP SELECTION <br />A pump must be selected to deliver at least 36.0 GPM with at least 16.1 feet of total head. <br />