|
Размер трубы (") |
Количество
отверстий
на 1 фут
|
Размер отверстия |
Площадь перфора-
ции
на 1 фут
|
|
3/4" |
78 |
3/16" |
2.15 |
|
1" |
54 |
5/16" |
4.14 |
|
1-1/4" |
66 |
5/16" |
5.06 |
|
1-1/2" |
78 |
5/16" |
5.98 |
|
2-1/16" |
78 |
5/16" |
5.98 |
|
2-3/8" |
90 |
3/8" |
9.94 |
|
2-7/8" |
102 |
3/8" |
11.26 |
|
3-1/2" |
126 |
3/8" |
13.91 |
|
4" |
138 |
3/8" |
15.24 |
|
4-1/2" |
150 |
3/8" |
16.56 |
|
5" |
162 |
3/8" |
17.88 |
|
5-1/2" |
174 |
3/8" |
19.21 |
|
6-5/8" |
186 |
3/8" |
20.53 |
|
7" |
222 |
3/8" |
24.51 |
|
9-5/8" |
294 |
3/8" |
32.46 |
