Enerpac STB Serie Hoja De Instrucciones página 4

PIPE BENDERS
7.1 Stub-up Bend Instuctions
1. Mark desired turn-up dimension (H) on straight length of pipe
(see figure 5).
2. Locate the size of pipe you are bending in Chart 1 and obtain
set-back dimension (S).
3. Measure back dimension (deduct (S) and mark pipe).
Mark (S) cannot be closer to ends of pipe than
minimum distance (L), shown in Chart 1, or ends will
not be supported on the pivot shoes.
4. Place pipe in bender so mark aligns with arrow on bending
shoe. Proceed to bend, reading desired angle on optic angle
gauge.
Chart 1, 90° Stub-up
Nominal Pipe Set - Back Centerline Radius
Size (S)
(in) (in)
1 1
⁄ 1 ⁄
2 8
3 1
⁄ 1 ⁄
4 2
7
1 1 ⁄
8
1 3
1 ⁄ 2 ⁄
4 8
1 3
1 ⁄ 2 ⁄
2 8
2 3 1 ⁄
4
1 1
2 ⁄ 31 ⁄
2 16
1
3 4 ⁄
2
1 3
3 ⁄ 5 ⁄
2 16
1
4 6 ⁄
2
7.2 Kick Bender Instructions
L
H
D
Angle
1. From Chart 2, find diagonal distance (D) which corresponds
with the desired turn-up dimension (H). Mark distance (D)
from the end of a straight length of pipe.
2. Locate the size of pipe in Chart 3 to obtain Set-back
measurement (S) under the angle of bend desired.
3. Mark off measurement (S) on pipe as illustrated in Figure 6.
Mark (S) cannot be closer to ends of pipe than
minimum distance (L) shown in Chart 3 or ends will not
be supported on the pivot shoes.
4. Place pipe in bender so mark aligns with arrow on bending shoe.
Proceed to bend, reading desired angle on optic angle gauge.
Minimum length (L) of pipe
(R) required on each end
of bend mark
(in) (in)
1 1
3 ⁄ 7 ⁄
4 2
1 3
4 ⁄ 8 ⁄
2 4
3 1
5 ⁄ 10 ⁄
4 4
1
7 ⁄ 12
4
1 1
8 ⁄ 13 ⁄
4 4
9 1 ⁄ 15
2
1
10 ⁄ 18
2
13 20
1
15 26 ⁄
2
20 27
D
S
L
R
Figure 6
Chart 2, Diagonal Distance (D)
Rise
(H) (in.)
15°
3
2 7 ⁄
4
7
4 17 ⁄
16
3
6 23 ⁄
16
15
8 30 ⁄
16
5
10 38 ⁄
8
3
12 46 ⁄
8
1
14 54 ⁄
16
13
16 61 ⁄
16
18 69 9 ⁄
16
1
20 77 ⁄
4
22 85
3
24 92 ⁄
4
Nominal (S) Set-back measurement (in.)
Pipe Sweep Benders
Size (in)
15° 30°
1 1
⁄ — ⁄
2 8
3 1 3
⁄ ⁄ ⁄
4 16 16
1 1
1 ⁄ ⁄
16 4
1 1 1
1 ⁄ ⁄ ⁄
4 8 4
1 1 ⁄ 1 ⁄ 5 ⁄
2 8 16
3 3
2 ⁄ ⁄
16 8
1 3 7
2 ⁄ ⁄ ⁄
2 16 16
1 9
3 ⁄ ⁄
4 16
1 1 5
3 ⁄ ⁄ ⁄
2 4 8
5 3
4 ⁄ ⁄
16 4
* (R) Centerline radius (Inches)
** (L) Minimum length of pipe required on each end of bend mark (inches)
7.3 Offset Bend Instructions
D
First bend mark
H
L
1. Determine offset bend angle desired. Locate and mark first
bend at distance (D) minus (S) from end of pipe, following
Section 7.2, "Kick Bend Instructions", Nos. 2 and 3.
2. Find dimension (B) from Offset Chart 4, using the same angle
of bend used to locate the first mark. NOTE: for any required
offset (H), the maximum pipe size that can be bent to the
angles given are listed.
3. Mark off second bend measurement (B) on pipe as illustrated
(Figure 7, Example 1).
Marks (B) cannot be closer to ends of pipe than distance
(L) or ends will not be supported on the pivot shoes (see
Figure 6, Example 3 and "L" Requirement Chart 5).
4
Bend Angle
30° 45°
13
4 2 ⁄
16
1
8 5 ⁄
16
1
12 8 ⁄
2
5
16 11 ⁄
16
1
20 14 ⁄
8
24 17
13
28 19 ⁄
16
5
32 22 ⁄
8
36 25 7 ⁄
16
5
40 28 ⁄
16
1
44 31 ⁄
8
5
48 33 ⁄
16
Chart 3, Kick Bends
One-shot Benders
45° 60° (R) *
1 7 1
⁄ ⁄ 3
4 16
5 9 1
⁄ ⁄ 4
16 16
7 3 3
⁄ ⁄ 5
16 4
1 7 1
⁄ ⁄ 7
2 8
5 ⁄ 1 8 1
8
11 3 1
⁄ 1 ⁄ 9
16 16
13 3
⁄ 1 ⁄ 10
16 8
1
1 11 ⁄ 13
16
1 5
1 ⁄ 11 ⁄ 17
8 16
3 1
1 ⁄ 2 ⁄ 20
8 2
Second bend mark
S
B
Angle
Angle
B L
Figure 7
60°
5
2 ⁄
16
5
4 ⁄
8
15
6 ⁄
16
1
9 ⁄
4
9
11 ⁄
16
7
17 ⁄
8
3
16 ⁄
16
1
18 ⁄
2
20 13 ⁄
16
1
23 ⁄
8
3
25 ⁄
8
13
27 ⁄
16
(L) **
1
⁄ 7 ⁄
4 2
3
⁄ 8 ⁄
2 4
1
⁄ 10 ⁄
4 4
1
⁄ 11 ⁄
4 2
⁄ 13 1 ⁄
4 4
⁄ 15
2
1 3
⁄ 16 ⁄
2 4
1
18 ⁄
2
1 1
⁄ 22 ⁄
2 4
1
24 ⁄
4
Example 1
Example 2
Example 3