Laserfiche WebLink
PRESSURE DISTRIBUTION SYSTEM Geotext�Ie(abric <br /> 1. Select number of perforated laterals 3 ' <br /> uarter inch rforations s aced�3' 12 <br /> 2. ���lect perfc�rati�n spacin�; _ __ 3 _ feet. 9-�f r�ck <br /> 3. 5ince perf�>rations sh��uld nc�t be placE�d cic>sc�r th��n l ft. t�� ['erf S�z;n�;7/32'� - ]/�.. - <br /> the ed �� of the rock la er 5ec dia rram � �'��rf 5p�c;n�; t_5•-s <br /> $ y (,� �, ), subtrart � ft. frc�m <br /> the rock layer length. <br /> K�,�k ia— �,�r�� - 2 ft. _ � � feet. <br /> -�. Dct��rmine thc nurnbcr e>f spa�c� betwecil perf��r,�ti��rz�. H';i';'r���'„!.`�°„�","o`°`�"," <br /> ,��� ,h���,,; <br /> Divide the length above by perforation spacing and round °�'"`F" � <<' <br /> Head �l^"r"' ����r,� <br /> down to nearest whale number. `�"Q <br /> 1.Oa 0.56 0.74 <br /> Length perf. spacing = 6 � ft. = 3 ft. _ � spaces <br /> 2.Ob 0.80 1.04 <br /> �3� �2� a.Use for single family homes <br /> b.Use for all other applications <br /> 5. Number of perforations is equal to one plus the number of <br /> perforation spaces . <br /> ad � Maximum numt;i�:��f�uarter uuh pertc�ration� <br /> S�c"3CE'6 + 1 = _� �JPifOI'd�lOItS��dfeI"d� lateral t���ua;i:_nree;10%dischar�e��aria.�� <br /> Perforation j <br /> 6. Multiply perforations per lateral by number of laterals to Spadn� , � <br /> ct�t� 1 � 1 z 2 <br /> get total number of perforations. 2.5 14 18 2g <br /> 3 a 1 3.0 13 17 26 <br /> laterals X perfs/latera] �� perforations. <br /> 3.3 12 16 25 <br /> 7. Determine required flow rate by multiplying 4.0 11 15 23 <br /> number of perforations by flow per perforation 5.Q 1Q 14 22 <br /> � X �m/�� -�gplll• MANIfp�D LOCATED 41 ENO OL PRE55�/RE p5TH18VTpN $1'�'� <br /> nr�° <br /> S. If laterals are connected to header pipe as shown on upper � ��.Y �.�� <br /> example, to select minimum required lateral diameter; enter r - %� � <br /> table with perforation spacing and number of perforations '// '��, "-� <br /> �d��rr <br /> per lateral. Select minimum di<�meter for ' � <br /> �erf��rated lat�ral = _�__ inches. ' <br /> .., � a nre.auim r�v� i.ire.�.e i.� <br /> r++isi�..i o�sinrevr�o.. w..o.,wi, <br /> `n..vu cn nu�KD„ ,��� <br /> 9. If perforated lateral system is attached to manifold pipe near �= a`w"'"�"�'�` '>^"'"'� �� <br /> � r..h..�wo <br /> the center, lower diagram, perforated lateral length and - ���. ��� <br /> number af perforations per lateral will be approximately one '° ����..,---� �```r-,-� �-.-� <br /> half of that in step b. UsinK these values, select minimum ' ,' i`°�- � <br /> ., h . "' �� <br /> diameter for perforated (ateral = � inches. � �_. .- • � �„�.��°` ,,,,�. <br /> `� <br /> ,,,�,. <br />