| |
MANDREL CHART |
| |
|
"D" OF BEND (CLR/TOD) |
|
1 |
1.25 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
|
WALL FACTOR (TOD/WT) |
10 |
P |
P |
P |
P |
P |
P |
N/A |
N/A |
|
12 |
1 |
1 |
P |
P |
P |
P |
N/A |
N/A |
|
15 |
2 |
1 |
1 |
1 |
P |
P |
P |
N/A |
|
20 |
2 |
2 |
2 |
1 |
1 |
1 |
P |
P |
|
25 |
3 |
2 |
2 |
2 |
1 |
1 |
1 |
P |
|
30 |
3 |
3 |
2 |
2 |
2 |
2 |
1 |
1 |
|
40 |
4 |
3 |
3 |
3 |
3 |
2 |
2 |
1 |
|
50 |
4 |
4 |
3 |
3 |
3 |
3 |
2 |
2 |
|
60 |
4 |
4 |
4 |
4 |
4 |
3 |
3 |
2 |
|
70 |
5 |
5 |
4 |
4 |
4 |
4 |
3 |
3 |
|
80 |
5 |
5 |
5 |
5 |
4 |
4 |
4 |
3 |
|
100 |
5 |
5 |
5 |
5 |
5 |
5 |
4 |
4 |
|
125 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
| |
|
|
Notes: |
|
[1] N/A = Mandrel not recommended. |
|
[2] P = Plug mandrel recommended. |
|
[3] 1, 2, or 3 = 1-, 2-, or 3-ball regular-pitch mandrel recommended. |
|
[4] 4 or 5 = 4- or 5-ball close-pitch mandrel recommended. |
|
[5] Recommendations assume 180-degree bend. |
|
[6] Applications with wall factors in excess of 70 may require
additional |
|
balls or double-close pitch depending upon tubing material and machine. |