42
UPSIDE-DOWN MICRO-EMITTERS HANDBOOK
APPENDIX
Max. distribution pipe length with 10% flow variation
Slope
Distance between emitters (m)
2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
Max. distribution pipe length (m)
Uphill 1%
52 55 58 62 64 66 70 71 76 76 80
Flat terrain 0
52 55 60 62 64 69 70 75 76 80 84
Downhill -1%
54 57 60 65 67 69 74 75 79 84 84
Uphill 1%
84 90 94 99 104 108 112 116 122 125 128
Flat terrain 0
86 92 98 104 109 114 118 122 126 133 136
Downhill -1%
90 95 101 107 112 117 122 126 133 137 140
Uphill 1%
128 134 142 148 157 162 170 177 180 186 192
Flat terrain 0
134 141 149 159 165 174 179 187 194 201 208
Downhill -1%
138 147 156 166 174 183 189 197 205 213 220
Uphill 1%
180 191 202 211 221 231 240 248 256 262 272
Flat terrain 0
194 207 218 229 241 252 262 272 284 293 304
Downhill -1%
206 220 233 247 258 270 285 296 306 319 332
Flow rate: 25 l/h
, pressure at the micro-sprinkler/emitter head: 5.0 bar
PE pipe 12 mm, ID: 9.8 mm
PE pipe 16 mm, ID: 13.2 mm
PE pipe 20 mm, ID: 17.0 mm
PE pipe 25 mm, ID: 21.2 mm
The data in the tables below is for demonstration and initial impression. In order to determine the
maximum distribution pipe length while maintaining a flow rate variation of no more than 10%, under
actual conditions, it is very important to consult the irrigation/hydraulic designer.
Slope
Distance between emitters (m)
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Max. distribution pipe length (m)
Uphill 1%
29 34 36 40 43 46 48 50 55 56 60
Flat terrain 0
30 34 38 40 43 46 51 53 55 59 60
Downhill -1%
30 34 38 42 45 48 51 53 57 59 63
Uphill 1%
45 50 55 59 65 68 73 77 81 84 90
Flat terrain 0
46 52 56 62 67 72 77 79 86 90 93
Downhill -1%
47 53 57 64 68 74 79 84 88 92 96
Uphill 1%
64 72 78 86 92 98 103 110 114 120 126
Flat terrain 0
66 74 83 90 97 104 110 118 122 129 135
Downhill -1%
68 77 85 93 101 108 114 122 130 134 141
Uphill 1%
96 108 118 128 137 146 154 163 172 179 186
Flat terrain 0
101 114 126 138 148 158 167 178 187 196 204
Downhill -1%
106 120 133 146 157 168 180 192 203 213 222
Flow rate: 40 l/h
, pressure at the micro-sprinkler/emitter head: 4.0 bar
PE pipe 16 mm, ID: 13.2 mm
PE pipe 20 mm, ID: 17.0 mm
PE pipe 25 mm, ID: 21.2 mm
PE pipe 32 mm, ID: 27.2 mm