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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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3 1/2 inch Nominal Diameter
Effective (Thrust) Area: 16.12 in 2 (104 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 |
3.5 |
170 |
6 |
23 |
12 |
8 |
9 |
15 |
0.9 |
0.23 |
10 |
349 |
873 |
16 |
0.0130 |
11.9 |
152 |
10.5 |
305 |
3.64 |
229 |
6.82 |
22.9 |
5.84 |
11 |
6 |
16 |
1.6 |
0.0132 |
100 |
9 |
24 |
15 |
8 |
12 |
16 |
1.75 |
0.84 |
10 |
194 |
141 |
9 |
0.0072 |
7.0 |
229 |
10.9 |
381 |
3.64 |
305 |
7.27 |
44.5 |
21.3 |
11 |
3 |
3 |
0.9 |
0.0073 |
40 |
12 |
24 |
18 |
9 |
15 |
17 |
2.69 |
1.89 |
10 |
134 |
46 |
6 |
0.0049 |
2.8 |
305 |
10.9 |
457 |
4.09 |
381 |
7.73 |
68.3 |
48 |
11 |
2 |
1 |
0.6 |
0.0050 |
3.5 |
500 |
6 |
35 |
12 |
8 |
9 |
21 |
0.32 |
0.06 |
8 |
2710 |
13345 |
121 |
0.0361 |
35.1 |
152 |
15.9 |
305 |
3.64 |
229 |
9.55 |
8.13 |
1.52 |
9 |
48 |
239 |
12.3 |
0.0367 |
500 |
9 |
36 |
15 |
9 |
12 |
22 |
0.72 |
0.29 |
10 |
1161 |
1182 |
52 |
0.0157 |
35.1 |
229 |
16.4 |
381 |
4.09 |
305 |
10 |
18.3 |
7.37 |
11 |
21 |
21 |
5.3 |
0.0160 |
300 |
12 |
37 |
18 |
10 |
15 |
23 |
1.23 |
0.77 |
10 |
739 |
315 |
33 |
0.0100 |
21.1 |
305 |
16.8 |
457 |
4.55 |
381 |
10.5 |
31.2 |
19.6 |
11 |
13 |
6 |
3.4 |
0.0102 |
Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
40-170 PSIG Series: 150 lb. ANSI B16.5 RFSO.
300-500 PSIG Series: 300 lb. ANSI B16.5 RFSO
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A53/A106.
40-70 PSIG Series: Std. Wt. Pipe.
300-500 PSIG Series: Std. Wt. Pipe
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel
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