Laserfiche WebLink
OSTP Pump Selection Design UNIVERSITY • <br /> Minnesota Pollution Worksheet OF MINNESOTA <br /> Control Agency <br /> 1. PUMP CAPACITY <br /> A. Pumping to Gravity or Pressure Distribution: I 0 Gravity Presse re 1 <br /> 1. If pumping to gravity enter the gallon per minute of the pump: GPM <br /> 2. If pumping to pressure,is the pump for the treatment system or the collection system: <br /> ©Treatment System 0 CoNectian System <br /> 3. If pumping to a pressurized treatment system,what part or type of system: <br /> ❑Soit Treatment Unit p Media Filter ❑Other <br /> 4. It pumping to a pressurized distnDutlon system: 29.0 GPM <br /> (Line 11 of Pressure Distribution or Line 10 of Mon-Level or enter if Collection System) <br /> 2. HEAD REQUIREMENTS <br /> 3. Elevation Difference 12 ft <br /> between pump and point of discharge: <br /> 1; `;) <br /> NOTE:IF system is an individual subsurface sewage treatment <br /> system,complete steps 4-9. If system is a Collection System, oder r <br /> skip steps 4,5,7 and 8 and go to Step 10. Member; <br /> 4. Distribution Head Loss: 5 ft I <br /> •off <br /> 5. Additional Head Loss: ft(due to special equipment,etc.) <br /> Distribution Head Loss Friction Loss in Plastic Pipe per 100 ft <br /> Gravity Distribution=Oft (C=130) <br /> Nominal Pipe Diameter <br /> Pressure Distribution based on Minimum Average Head FLOW Rate <br /> Value on Pressure Distribution Worksheet: (GPM1 114 11 2 3 <br /> ) <br /> Minimum Average Head Distribution Head Loss 10 9.11 3.01 1.27 0.31 - <br /> 1fL 5ft 12 12.77 4.31 1.78 0.44 <br /> 2ft 6ft -"' <br /> 5ft loft 14 16.99 5.74 2.36 0.68 - <br /> 16 - 7.35 3.03 0.75 0.10 <br /> 6. A.Supply Pipe DIanreter. 2.0 in 18 9.14 3.76 0.93 0.13 <br /> a.Supply Pine Length: 70 ft 20 - 11.11 4.58 1.13 0.16 <br /> 25 <br /> 7. Based on Friction Loss in Plastic Pipe per 1006:from Table I: 16.79 6.92 131 0.24 <br /> 30 - -- 9.69 2.39 0.33 <br /> Friction Loss 2.23 ft per 1OOft of pipe 35 - 12.E 3.18 0.44 <br /> 8. Determine Equivalent Pipe40 - - 16.52 4.07 0.67 <br /> Length from pump discharge to soil dispersal 45 - - 5.07 0.70 <br /> area discharge point. Estimate by adding 25%to supply pipe length for <br /> 50 - - 6.16 0.88 <br /> fitting loss. Supply Pipe Length(5.8) X 1.25=Equivalent Pipe Length <br /> 55 - - -- 7.35 1.02 <br /> 70 ft X 1.25 = 87.5 ft 60 - - --- 8.63 1.20 <br /> 9. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (tine 6)by 1 65 - 10.01 1.39 <br /> Supply Friction Loss= 70 - -- --- 11.48 1.60 <br /> 2.23 ft per 100ft X 87.5 ft + 100 1.9 ft <br />