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OSTP Pressure Distribution <br /> ""'""e�°taP°"�t;°n Design Worksheet uN"'Exs�TY � �.� ����a � <br /> Contro�A enc �� <br /> 9 Y U F MI iv'N E SOTA .-'��`�- <br /> Project ID: v 07.14.15 <br /> 1. Media Bed Width: �� ft <br /> 2. Minimum Number of Laterals in system/zone = Rounded up number of [(Media Bed Width - 4) = 3J + 1. <br /> { �� � 4 � + � - �laterats Does not app(y to at-grades <br /> 3. Designer Setected Number of Latero(s: �taterals <br /> Cannot be less than line 2 (accept in ot-Qrodesl <br /> 4. Setect Perforation Spacing; 3 � ft � _ � ;, <br /> 5. Setect Perforation DiQmeter Size: - _� '`-?���' � <br /> 7/32 in �x� _- i <br /> .. <br /> � , � <br /> ,__ .., ,,....,,.�_... ,;..: <br /> 6. Length of Laterols = Media Bed Length - 2 Feet. <br /> 63 - 2ft = 61 ft Perforacion con not be c(oser then 1 foot from edge. <br /> � Determine the Number of Perforation Spoces. Divide the Length of Latero(s by the Perforation Spocing <br /> and round down to the nearest whole number. <br /> Number of Perforotion Spoces 61 ft : ��ft = 20 Spaces <br /> Number of Perforotions per Latero( is equal to 1.0 p(us the Number of Perforotion Spaces. Check table <br /> 8. below to verify the number of perforations per lateral guarantees less than a 10� discharge variation. The <br /> vatue is double with a center manifold. <br /> Perforations Per Loterol = 20 Spaces + 1 = 21 Perfs. Per Lateral <br /> Mnxim�nn Numbe�of Perfaatiaru Pe+Laiera!to Cwarantee�10�Disct�rge Vanatron <br /> �Irxn Pe�tc�ra;,c�; 7,32 I�th Fe�fCrsti�az <br /> Perforat�on Spaang IFeetl F7P�Dia^seter ilnchesl Pe�f�ration SFac�ng Fipe Partie:er flnches) <br /> � �,'• �;, i 3 IfE�U ! 1;. 1� � � <br /> � 10 f3 18 30 60 1 it 16 21 3� b8 <br /> ��� P 12 15 2S 53 Y: <br /> it� 1� it� 3i 6�1 <br /> � E 12 16 25 52 3 9 j# 19 3� � <br /> 3 16 Irsch Fer`orat�on; I E irr_n Fe-forat��s <br /> Perferacan Spacrng IFeetl ���O�i�`����'� Pe�faraao�Sp;cing �p-r Cra?�e?er Iinche;l <br /> � ��• �'�: 2 3 i�'c-�;� <br /> t t.: i�: i t <br /> 1 11 18 26 �46 87 1 21 33 +i 74 149 <br /> ��'• 12 1? �4 �{� <br /> 8� ��� � 1f� 3C� �t 69 135 <br /> 3 11 t6 22 37 15 3 20 19 39 64 128 <br /> 9• Toto( Number of Perforotions equals the Number of Perforotions per Lotero! multiplied by the Number of <br /> Perforoted Laterafs. <br /> 21 Perf. Per Lat. X ��Number of Perf. Lat. = 63 Total Number of Perf. <br /> 10. Select Type of Monifold Connection (End or Center): '�; End i" Center <br /> 11. Se(ect Lateral Diameter (See Tabfe): 2,pp in <br />