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| Expansion Joint Data Tables |
- Single Expansion Joints
- Universal Expansion Joints
- 3, 3.5, 4 Inch Universal Expansion Joints
- 5, 6, 8 Inch Universal Expansion Joints
- 10, 12, 14 inch Universal Expansion Joints
- 16, 18, 20 Inch Universal Expansion Joints
- 22, 24, 26 Inch Universal Expansion Joints
- 28, 30, 32 Inch Universal Expansion Joints
- 34, 36, 38 Inch Universal Expansion Joints
- 40, 42 Inch Universal Expansion Joints
- 44, 46, 48 Inch Universal Expansion Joints
- 50 through 72 inch Universal Expansion Joints
- 84 through 144 Inch Unvirsal Expansion Joints
- Externally Pressurized Expansion Joints
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Single Expansion Joint |
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Single Weld End |
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Single Flanged End |
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Single Flanged Weld End |
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4 inch Nominal Diameter
Effective (Thrust) Area: 20.87 in 2 (134.64 cm 2)
Notes:
- Rated life cycle at 650°F is 3000 cycles for any one tabulated movement.
- To combine axial, lateral and angular movements, please refer to the how to order section.
- To increase cycle life or movements, please refer to graph on cycle life.
- Rated bellows extension is equal to rated axial movement. Provided bellows is precompressed the amount of design extension. Installed overall length will decrease by the amount of precompression.
- Maximum test pressure: 1.5 X rated working pressure.
- Bellows rated for 650°F: See catalog flange data for appropriate flange temperature/pressure ratings.
- Torsional spring rate data provided only for modeling expansion joints on computer stress programs. Please consult factory for allowable torsional loadings.
- Overall lengths and weights for unrestrained expansion joints only. Consult factory for information regarding tied, hinged, or gimbal expansion joints.
- Pressure thrust load applied to adjacent pipe anchors/equipment when unrestrained expansion joints are used.
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Diameter |
Pressure |
Overall Length and Weight |
Non-concurrant
movements |
Spring rates |
Flanged
Ends |
Weld
Ends |
Combination
Ends |
Axial |
Lateral |
Angular |
Axial |
Lateral |
Angular |
Torsional |
Overall Length |
Weight |
Overall Length |
Weight |
Overall Length |
Weight |
Compression |
PSIG |
in. |
lb. |
in. |
lb. |
in. |
lb. |
in. |
in. |
deg. |
lb./in. |
lb./in. |
in./lb./deg. |
in./lb./deg.
x 106 |
kg/cm2 |
mm |
kg |
mm |
kg |
mm |
kg |
mm |
mm |
Grad |
kg/mm |
kg/mm |
N-M/Grad |
N-M/Grad
x 105 |
4 |
100 |
6 |
27 |
12 |
9 |
9 |
18 |
1.23 |
0.27 |
10 |
222 |
774 |
13 |
0.0168 |
7.0 |
152 |
12.3 |
305 |
4.09 |
229 |
818 |
31.2 |
6.96 |
11 |
4 |
14 |
1.3 |
0.0170 |
65 |
9 |
28 |
15 |
10 |
12 |
19 |
2.49 |
1.03 |
10 |
118 |
115 |
7 |
0.0089 |
4.6 |
229 |
12.7 |
381 |
4.55 |
305 |
8.64 |
63.2 |
26.2 |
11 |
2 |
2 |
0.7 |
0.0090 |
30 |
12 |
29 |
18 |
11 |
15 |
20 |
3.89 |
2.36 |
10 |
80 |
36 |
5 |
0.0060 |
2.1 |
305 |
13.2 |
457 |
5 |
381 |
9.09 |
98.8 |
59.9 |
11 |
1 |
1 |
0.5 |
0.0061 |
4 |
275 |
6 |
45 |
10 |
9 |
8 |
27 |
0.46 |
0.07 |
10 |
1549 |
12199 |
90 |
0.0433 |
19.3 |
152 |
20.5 |
254 |
4.09 |
203 |
12.3 |
11.7 |
1.78 |
11 |
28 |
218 |
9.2 |
0.0441 |
275 |
9 |
47 |
13 |
11 |
11 |
29 |
1.07 |
0.36 |
10 |
664 |
960 |
38 |
0.0186 |
19.3 |
229 |
21.4 |
330 |
5 |
279 |
13.2 |
27.2 |
9.14 |
11 |
12 |
17 |
3.9 |
0.0189 |
175 |
12 |
48 |
16 |
12 |
14 |
30 |
1.81 |
0.96 |
10 |
423 |
247 |
24 |
0.0118 |
12.3 |
305 |
21.8 |
406 |
5.45 |
356 |
13.6 |
46 |
24.4 |
11 |
8 |
4 |
2.4 |
0.0120 |
Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
30-100 PSIG Series: 150 lb. ANSI B16.5 RFSO.
175-275 PSIG Series: 300 lb. ANSI B16.5 RFSO
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A53/A106.
30-100 PSIG Series: Std. Wt. Pipe.
175-275 PSIG Series: Std. Wt. Pipe
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel
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