Laserfiche WebLink
OSTP Basic Pump Selection Design <br />Minnesota Pollution Worksheet UNIVERSITY <br />Control Agency OF MINNESOTA <br />1. PUMP CAPACITY Project ID: v 04.20.2016 <br />Pumping to Gravity or Pressure Distribution: Pressure <br />1. If pumping to gravity enter the gatlon per minute of the pump: C�GPM f 10 - 45 gpm) <br />2. If pumping to a pressurized distribution system: 36.0 GPM <br />3. Enter pump description: <br />2. HEAD REQUIREMENTS <br />A. Elevation Difference 10 ft <br />between pump and point of discharge: <br />B. Distribution Head Loss: ft �7 <br />I <br />C. Additional Head Loss: E== ft roue to special eouipment, etc.) <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 6ft <br />5ft 1 Oft <br />a, e <br />nn.•�en<r <br />H. Total Head requirement is the sum of the Elevation Difference (Line A), the Distribution Head Loss (Line B), Additional Head Loss (Line C), and <br />the Supply Friction Loss (Line G ) <br />10.0 ft 5.0 ft - E=ft - 3.9 ft = 18.9 ft <br />3. PUMP SELECTION <br />A pump must be selected to deliver at least 36.0 GPM (Line 1 or Line 2) with at teast 1$,9 feet of total head. <br />Comments: <br />Table J. Friction Loss in Plastic Pipe per 100ft <br />Flow Rate <br />Pipe Diameter (inches) <br />D. 1. Supply Pipe Diameter: 2.0 in <br />iGPM) <br />1 1.25 1 <br />1.5 2 <br />1.7 <br />2.4 <br />10 <br />9.1 3.1 <br />1.3 0.3 <br />12.9 <br />12 <br />12.8 4.3 <br />1.8 0.4 <br />40 <br />14 <br />17.0 5.7 <br />2.4 0.6 <br />16 <br />21.8 7.3 <br />3.0 0.7 <br />18 <br />9.1 <br />3.8 0.9 <br />6.1 <br />Friction Loss = 3.32 ft per 100ft of pipe <br />55 <br />H. Total Head requirement is the sum of the Elevation Difference (Line A), the Distribution Head Loss (Line B), Additional Head Loss (Line C), and <br />the Supply Friction Loss (Line G ) <br />10.0 ft 5.0 ft - E=ft - 3.9 ft = 18.9 ft <br />3. PUMP SELECTION <br />A pump must be selected to deliver at least 36.0 GPM (Line 1 or Line 2) with at teast 1$,9 feet of total head. <br />Comments: <br />1.1 4.6 <br />1.1 <br />D. 1. Supply Pipe Diameter: 2.0 in <br />25 <br />30 <br />16.8 6.9 <br />23.5 1 9.7 <br />1.7 <br />2.4 <br />2. Suppty Pipe Length: 95 ft <br />35 <br />12.9 <br />3.2 <br />40 <br />16.5 <br />4.1 <br />E. Friction Loss in Plastic Pipe per 100ft from Tabte I: <br />45 <br />20.5 <br />5.0 <br />50 <br />6.1 <br />Friction Loss = 3.32 ft per 100ft of pipe <br />55 <br />7.3 <br />F, Determine Equivalent Pipe Length from pump discharge to soit dispersal area discharge <br />60 <br />65 <br />8.6 <br />point. Estimate by adding 25% to supply pipe length for fitting loss. Supply Pipe Length <br />70 <br />10.0 <br />(D.2) X 1.25 = Equivalent Pipe Length <br />11.4 <br />75 <br />13.0 <br />95 ft X 1.25= 118.8 ft <br />g5 ! <br />16.4 <br />20.1 <br />G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Line E) by the Equivalent Pipe Length (Line F) and divide by 100. <br />Supply Friction Loss = <br />3.32 ft per 100ft X 118.8 ft t 100 <br />= 3.9 ft <br />H. Total Head requirement is the sum of the Elevation Difference (Line A), the Distribution Head Loss (Line B), Additional Head Loss (Line C), and <br />the Supply Friction Loss (Line G ) <br />10.0 ft 5.0 ft - E=ft - 3.9 ft = 18.9 ft <br />3. PUMP SELECTION <br />A pump must be selected to deliver at least 36.0 GPM (Line 1 or Line 2) with at teast 1$,9 feet of total head. <br />Comments: <br />