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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

 

20 inch Nominal Diameter

Effective (Thrust) Area: 357.87 in2 (2308.26 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

20

70

12

156

18

75

15

116

3.5

0.52

10

530

3989

524

1.0323

4.9

305

70.9

457

34.1

381

52.7

88.9

13.2

11

9

71

53.3

1.0499

70

18

166

24

85

21

126

5.6

1.36

10

331

937

327

0.6424

4.9

457

75.5

610

38.6

533

57.3

142

34.5

11

6

17

33.3

0.6534

35

24

177

30

96

27

136

8.53

2.87

10

241

354

238

0.4663

2.5

610

80.5

762

43.6

686

61.8

217

72.9

11

4

6

24.2

0.4743

20

200

12

350

14

77

13

214

1.39

0.14

8

3106

54098

3074

2.4362

14.1

305

159

356

35

330

97.3

35.3

3.56

9

56

968

312.6

2.4776

200

18

367

20

94

19

230

2.64

0.51

10

1672

7583

1655

1.2968

14.1

457

167

508

42.7

483

105

67.1

13

11

30

136

1683

1.3188

200

24

383

26

110

25

246

3.86

1.1

10

1144

2338

1132

0.8835

14.1

610

174

660

50

635

112

98

27.9

11

20

42

115.1

0.8985

20

400

12

659

13

105

13

382

0.94

0.07

5

8729

294625

8677

3.5831

28.1

305

300

330

47.7

330

174

23.9

1.78

6

156

5272

882.5

3.6441

400

18

691

19

136

19

413

2.13

0.35

10

3968

24597

3944

1.6074

28.1

457

314

483

61.8

483

188

54.1

8.89

11

71

440

401.1

1.6348

400

24

722

25

168

25

445

3.37

0.87

10

2567

6445

2552

1.0361

28.1

610

328

635

76.4

635

202

85.6

22.1

11

46

115

259.5

1.0537

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
35-70 PSIG Series: 125 lb. ANSI B16.5 RFSO.
200 PSIG Series: 150 lb. ANSI B16.5 RFSO.
400 PSIG Series: 300 lb. ANSI B16.5 RFSO.
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A53/A106.
35-70 PSIG Series: Std. Wt. Pipe.
200 PSIG Series: Std. Wt. Pipe.
400 PSIG Series: Std. Wt. Pipe.
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel

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