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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

 

48 inch Nominal Diameter

Effective (Thrust) Area: 1947 in2 (12,561 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

48

35

12

891

16

179

14

535

3.29

0.15

8

670

50793

3620

15.2078

2.5

305

405

406

81.4

356

243

83.6

3.81

8

12

909

368.2

15.4663

35

18

923

22

212

20

567

6.11

0.53

10

361

7930

1949

8.1888

2.5

457

420

559

96.4

508

258

155

13.5

11

6

142

198.2

8.3280

35

22

945

26

233

24

589

7.99

0.91

10

276

3546

1491

6.2620

2.5

559

430

650

106

610

268

203

23.1

11

5

63

151.6

6.3685

48

95

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

16

203

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

2.55

0.12

6

2744

208321

14847

24.6308

6.7

406

92.3

64.8

3.05

7

49

3728

1509.9

25.0495

95

22

225

4.73

0.41

10

1478

32523

7994

13.2627

6.7

559

116

120

10.4

11

26

582

813.0

13.4882

95

26

289

6.19

0.7

10

1130

14544

6113

10.1421

6.7

660

131

157

17.8

11

20

260

621.7

10.3145

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

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