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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

 

8 inch Nominal Diameter

Effective (Thrust) Area: 69.74 in2 (449.82 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

8

75

8

63

13

23

10

43

1.81

0.29

10

251

1643

48

0.0948

5.3

203

28.6

330

10.5

254

19.5

46

7.37

11

4

29

4.9

0.0965

50

12

65

17

25

14

45

3.65

1.1

10

133

244

26

0.0502

3.5

305

29.5

432

11.4

356

20.5

92.7

27.9

11

2

4

2.6

0.0511

25

16

67

21

27

18

47

5.69

2.53

10

90

77

17

0.0341

1.8

406

30.5

533

12.3

457

21.4

145

64.3

11

2

1

1.7

0.0347

8

200

8

64

13

25

19

44

1.02

0.16

10

1166

7641

225

0.1618

14.1

203

29.1

330

11.4

254

20

26.9

4.32

11

21

137

22.9

0.1646

200

12

68

17

28

14

48

1.93

0.58

10

617

1134

119

0.0857

14.1

305

30.9

432

12.7

356

21.8

49

14.7

11

11

20

12.1

0.0871

105

16

71

21

32

18

51

3.1

1.37

10

420

357

81

0.0583

7.4

406

32.3

533

14.5

457

23.2

78.7

34.8

11

8

6

8.2

0.0592

8

400

8

120

12

25

10

72

0.39

0.04

5

8627

117663

1671

0.4596

28.1

203

54.5

305

11.4

254

32.7

9.91

1.02

5

154

2106

169.9

0.4674

400

12

125

16

29

14

77

0.91

0.23

10

3595

9431

696

0.1938

28.1

305

56.8

406

13.2

356

35

23.1

5.84

11

64

169

70.8

0.1971

400

16

130

20

34

20

82

1.41

0.56

10

2270

2443

440

0.1228

28.1

406

59.1

508

15.5

508

37.3

35.8

14.2

11

41

44

44.7

0.1249

Materials
Bellows: A240-T304. Alternate materials available upon request. Refer to the materials section.
Flanges: ASTM A105.
25-70 PSIG Series: 150 lb. ANSI B16.5 RFSO.
105-200 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.
25-70 PSIG Series: Std. Wt. Pipe.
105-200 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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