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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

 

12 inch Nominal Diameter

Effective (Thrust) Area: 156.06 in2 (1006.59 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

12

80

12

137

16

45

14

91

2.94

0.53

10

416

2113

179

0.3358

5.6

305

62.3

406

20.5

356

41.4

74.7

13.5

11

7

38

18.2

0.3415

60

18

144

22

52

20

98

5.41

1.75

10

238

378

102

0.1910

4.2

457

65.5

559

23.6

508

44.5

137

44.5

11

4

7

10.4

0.1943

25

24

151

28

58

26

104

8.57

4

10

166

128

71

0.1335

1.8

610

68.6

711

26.4

660

47.3

218

102

11

3

2

7.2

0.1357

12

210

12

243

16

49

14

146

1.41

0.21

10

1952

14794

840

0.6363

14.8

305

110

406

22.3

356

66.4

35.8

5.33

11

35

265

85.4

0.6471

210

18

253

22

59

20

156

2.68

0.78

10

1051

2074

453

0.3387

14.8

457

115

559

26.8

508

70.9

68.1

19.8

11

19

37

46.1

0.3445

300

24

296

28

101

26

198

3.97

1.71

10

1447

1295

627

0.2447

21.1

610

135

711

45.9

660

90

101

43.3

11

26

23

63.8

0.2488

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
25-80 PSIG Series: 150 lb. ANSI B16.5 RFSO.
210-300 PSIG Series: 300 lb. ANSI B16.5 RFSO
Plate flanges and angle flanges available for low pressure systems.
Pipe: ASTM A53/A106.
25-80 PSIG Series: Std. Wt. Pipe.
210-300 PSIG Series: Std. Wt. Pipe.
Liners: A240-T304.
Covers: Carbon steel.
Tie Rods, Hinges, Gimbals: Carbon steel

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