 | A training manual in conducting a workshop in the design, construction, operation, maintenance and repair of hydrams |
 |  | Session 10: Hydram construction - concrete (18 hours over a 7 day period) |
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Handout 10C: Impulse valve steel backing - metric
Drive head in meters
|
3 |
6 |
9 |
12 |
15 |
|
|
40 |
3 |
3 |
3 |
5 |
5 |
|
50 |
3 |
5 |
5 |
5 |
6 |
|
60 |
5 |
5 |
6 |
6 |
6 |
|
75 |
5 |
6 |
8 |
8 |
8 |
|
100 |
6 |
8 |
10 |
11 |
11 |
|
125 |
8 |
11 |
13 |
13 |
14 |
|
150 |
10 |
13 |
14 |
16 |
18 |
|
20,0 |
13 |
18 |
19 |
21 |
22 |
|
300 |
21 |
25 |
29 |
32 |
34 |
|
400 |
27 |
33 |
38 |
43 |
46 |
Impulse valve opening in millimeters
Impulse valve steel backing - metric
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