The values listed below represent a nominal design, single
segment bellows capsule and are subject to manufacturing
tolerance variations.
| Basic Part Number |
Outside Diameter In. |
Inside Diameter In. |
Stroke In./Seg.
1 |
Extended Length In./Seg.
1 |
Compressed Length In./Seg.
1 |
Effective AreaIn.2
2 |
Spring Rate Lb./In.
2 3 |
| 37-12 |
.375 |
.125 |
.15 |
.21 |
.06 |
.049 |
9 |
| 40-20 |
.396 |
.200 |
.13 |
.21 |
.08 |
.070 |
19 |
| 50-19 |
.500 |
.190 |
.17 |
.33 |
.16 |
.093 |
41 |
| 64-34 |
.638 |
.338 |
.24 |
.32 |
.08 |
.187 |
9 |
| 75-25 |
.750 |
.250 |
.37 |
.53 |
.16 |
.196 |
14 |
| 84-52 |
.835 |
.515 |
.26 |
.34 |
.08 |
.358 |
11 |
| 103-55 |
1.030 |
.550 |
.34 |
.50 |
.16 |
.490 |
28 |
| 112-50 |
1.125 |
.500 |
.60 |
.79 |
.19 |
.518 |
21 |
| 125-75 |
1.250 |
.750 |
.37 |
.53 |
.16 |
.785 |
33 |
| 136-54 |
1.355 |
.540 |
.98 |
1.20 |
.22 |
.705 |
5 |
| 138-83 |
1.375 |
.830 |
.50 |
.69 |
.19 |
.955 |
24 |
| 150-96 |
1.500 |
.960 |
.41 |
.57 |
.16 |
1.188 |
28 |
| 162-75 |
1.625 |
.750 |
.72 |
.92 |
.20 |
1.108 |
13 |
| 189-139 |
1.890 |
1.390 |
.57 |
.74 |
.17 |
2.112 |
17 |
| 200-125 |
2.000 |
1.250 |
.59 |
.79 |
.20 |
2.074 |
31 |
| 220-104 |
2.200 |
1.040 |
1.02 |
1.22 |
.20 |
2.061 |
8 |
| 225-150 |
2.250 |
1.500 |
.63 |
.79 |
.16 |
2.761 |
37 |
| 249-153 |
2.490 |
1.530 |
.81 |
1.01 |
.20 |
3.173 |
18 |
| 250-175 |
2.500 |
1.750 |
.59 |
.79 |
.20 |
3.547 |
85 |
| 262-125 |
2.625 |
1.250 |
1.20 |
1.44 |
.24 |
2.948 |
10 |
| 275-175 |
2.750 |
1.750 |
.85 |
1.05 |
.20 |
3.976 |
18 |
| 300-200 |
3.000 |
2.000 |
.85 |
1.05 |
.20 |
4.909 |
21 |
| 325-225 |
3.250 |
2.250 |
.81 |
1.05 |
.24 |
5.940 |
40 |
| 350-200 |
3.500 |
2.000 |
1.34 |
1.58 |
.24 |
5.940 |
11 |
| 350-250 |
3.500 |
2.500 |
.89 |
1.05 |
.16 |
7.069 |
13 |
| 386-326 |
3.860 |
3.260 |
.57 |
.76 |
.19 |
9.954 |
63 |
| 399-269 |
3.990 |
2.690 |
1.13 |
1.37 |
.24 |
8.762 |
22 |
| 425-320 |
4.250 |
3.200 |
.82 |
1.10 |
.28 |
10.898 |
75 |
| 435-364 |
4.350 |
3.640 |
.59 |
.75 |
.16 |
12.535 |
51 |
| 475-375 |
4.750 |
3.750 |
.85 |
1.05 |
.20 |
14.186 |
37 |
| 497-400 |
4.970 |
4.000 |
.90 |
1.12 |
.22 |
15.798 |
39 |
| 572-403 |
5.718 |
4.031 |
1.69 |
1.95 |
.26 |
18.662 |
14 |
| 600-450 |
6.000 |
4.500 |
1.34 |
1.58 |
.24 |
21.648 |
23 |
| 644-540 |
6.440 |
5.400 |
.89 |
1.09 |
.20 |
27.525 |
47 |
| 698-498 |
6.979 |
4.979 |
1.78 |
2.10 |
.32 |
28.077 |
26 |
| 750-600 |
7.500 |
6.000 |
1.34 |
1.58 |
.24 |
35.785 |
30 |
| 950-850 |
9.500 |
8.500 |
.81 |
1.05 |
.24 |
63.617 |
142 |
| 1400-1200 |
14.000 |
12.000 |
1.78 |
2.10 |
.32 |
132.732 |
60 |
| 1. |
For a bellows capsule consisting of more than one
segment, multiply the value listed by the desired number
of segments.
|
| 2. |
The value listed represents an average value and may
vary with changing conditions, such as convolution pitch
and/or pressure differential.
|
| 3. |
For a bellows capsule consisting of more than one
segment, divide the value listed by the desired number of
segments. |
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