Laserfiche WebLink
, <br /> � � OSTP Pressure Distribution <br /> MinnesotaPoRution Design Worksheet UNIVERSITY � J. <br /> Control Agency OF MI NNESOTA � ����V�'� <br /> � <br /> 12. Calculate the Square Feet per Perforotion. Recommended vafue is 4-11 ftz per perforation. <br /> Does not apply to At-Grades <br /> a. Bed Area = Bed Width (ft) X Bed Length (ft) <br /> 10 ft X 63 ft = 630 ftZ <br /> b. Squore Foot per Perforotion = Bed Area divided by the Tota(Number of Perforations. <br /> 630 ft2 .- 63 perforations = 10.0 ftZ/perforations <br /> 13. Select Minimum Average Heod: 1.0 ft <br /> 14. Select Perfororion Discharge (GPM) based on Table: 0.56 GPM per Perforation <br /> 15. Determine required Flow Rate by multiplying the Toral Number of Perfs. by the Perforation Discharge. <br /> 63 Perfs X 0.56 GPM per Perforation = 36 GPM <br /> 16. Volume of Liquid Per Foot of Distribution Piping (Tob(e ll): 0.170 Gallons/ft <br /> 17. Volume of Distribution Piping = � Table 11 <br /> I <br /> _ [Number of Perforated Loterols X Length of Laterals X (Volume of voiume of Liquid in <br /> Liquid Per Foot of Distribution Piping] pipe <br /> I Pipe Liquid <br /> �� X 61 ft X 0.170 gal/ft = 31.1 Gallons ! Diameter Per Foot <br /> (inches) (Gallons} <br /> 18. Minimum Delivered Volume = Volume of Distribution Piping X 4 1 0.045 <br /> ; 1.25 0.078 <br /> 31.1 gats X 4 = 124.4 Gallons 7.5 0.110 <br /> 2 0.170 <br /> mam o pipe` 3 0.380 <br /> � 4 0.661 <br /> i _---- —-- --- <br /> � .-Cleanouts ------ ------ <br /> pipe from pump � ' <br /> i Manifoid pipe� <br /> lean outs ; � <br /> � � � <br /> • �� � i <br /> � <br /> aiternate location ----- � <br /> of i e from um 'Altemate location <br /> of pipe from pump <br /> Pi e fmm um <br /> Comments/Special Design Considerations: <br />