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U.S. Bellows U.S. BELLOWS, INC.
METALLIC EXPANSION JOINT CATALOG
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Expansion Joint Data Tables
 
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Single Expansion Joint

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Single Metallic Expansion Joint Technical Drawing   Single Metallic Expansion Joint Technical Drawing  

Single Weld End

Single Flanged End

 
    Single Metallic Expansion Joint technical drawing  
   

Single Flanged Weld End

 

30 inch Nominal Diameter

Effective (Thrust) Area: 784.07 in2 (5057.25 cm2)

Notes:

  1. Rated life cycle at 650°F is 3000 cycles for any one tabulated movement.
  2. To combine axial, lateral and angular movements, please refer to the how to order section.
  3. To increase cycle life or movements, please refer to graph on cycle life.
  4. 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.
  5. Maximum test pressure: 1.5 X rated working pressure.
  6. Bellows rated for 650°F: See catalog flange data for appropriate flange temperature/pressure ratings.
  7. Torsional spring rate data provided only for modeling expansion joints on computer stress programs. Please consult factory for allowable torsional loadings.
  8. Overall lengths and weights for unrestrained expansion joints only. Consult factory for information regarding tied, hinged, or gimbal expansion joints.
  9. Pressure thrust load applied to adjacent pipe anchors/equipment when unrestrained expansion joints are used.

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

30

50

12

328

16

114

14

221

3.98

0.36

10

514

10605

1114

3.3278

3.5

305

149

406

51.8

356

100

101

9.14

11

9

190

113.3

3.3844

50

18

346

22

132

20

239

6.8

1.04

10

308

2187

669

1.9880

3.5

457

157

559

60

508

109

173

26.4

11

6

39

68.0

2.0218

35

24

364

28

150

26

257

9.62

2.08

10

220

781

478

1.4174

2.5

610

165

711

68.2

660

117

244

52.8

11

4

14

48.6

1.4415

30

135

Customer to specify flange configuration. Weights and O.A.L. will be furnished upon receipt of this information.

16

127

Customer to specify flange configuration. Weights and O.A.L. will be furnished upon receipt of this information.

2.27

0.19

8

2370

55283

5146

6.0143

9.5

406

57.7

57.7

4.83

9

42

989

523.3

6.1165

135

22

155

3.97

0.59

10

1354

10315

2941

3.4367

9.5

559

70.5

101

15

11

24

185

299.1

3.4952

135

28

183

5.67

1.2

10

948

3538

2058

2.4057

9.5

711

83.2

144

30.5

11

17

63

209.3

2.4466

30

290

16

193

2.12

0.18

8

4752

111181

10349

6.2620

20.4

406

87.7

53.8

4.57

9

85

1990

1052.5

6.3684

290

22

248

3.7

0.55

10

2715

20745

5914

3.5783

20.4

559

113

94

14

11

48

371

601.5

3.6391

290

28

303

5.29

1.12

10

1901

7116

4140

2.5048

20.4

711

138

134

28.4

11

34

127

421.0

2.5474

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
35-50 PSIG Series: 125 lb. Lt. Wt. FFSO
For 135 psig and 290 psig Series: Customer to specify actual flanges required.
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A285-C.
35-50 PSIG Series: 0.375-inch wall.
135 PSIG Series: 0.375-inch wall.
290 PSIG Series: 0.500-inch wall.
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel

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