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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

 

34 inch Nominal Diameter

Effective (Thrust) Area: 995 in2 (6420 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

34

50

12

462

16

130

14

296

3.98

0.32

10

584

15302

1608

4.8409

3.5

305

210

406

59.1

356

135

101

8.13

11

10

274

163.5

4.9232

50

18

482

22

150

20

316

6.8

0.93

10

350

3155

965

2.8919

3.5

457

219

559

68.2

508

144

173

23.6

11

6

56

98.1

2.9411

40

24

503

28

170

26

336

9.62

1.85

10

250

1127

689

2.0618

2.8

610

229

711

77.3

660

153

244

47

11

4

20

70.1

2.0968

34

135

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

16

143

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

2.25

0.17

7

2693

79749

7423

8.7452

9.5

406

65

57.2

4.32

8

48

1427

754.9

8.8938

135

22

176

3.93

0.52

10

1539

14880

4242

4.9972

9.5

559

80

99.8

13.2

11

28

266

431.4

5.0822

135

28

208

5.62

1.05

10

1077

5104

2969

3.4981

9.5

711

94.5

143

26.7

11

19

91

301.9

3.5575

34

275

16

219

2.12

0.16

7

5397

160280

14920

9.0951

19.3

406

99.5

53.8

4.06

8

97

2868

1517.4

9.2498

275

22

281

3.71

0.49

10

3084

29907

8525

5.1972

19.3

559

128

94.2

12.4

11

55

535

867.0

5.2856

344

24

344

5.3

0.99

10

2159

10258

5968

3.6381

19.3

610

156

135

25.1

11

39

184

606.9

3.6999

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
40-50 PSIG Series: 125 lb Lt. Wt. FFSO
For 135 psig and 275 psig Series: Customer to specify actual flanges required.
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A285-C.
40-50 PSIG Series: 0.375-inch wall.
135 PSIG Series: 0.375-inch wall.
275 PSIG Series: 0.500-inch wall.
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel

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