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12 Inch Nominal Diameter

Effective (Thrust) Area: 156.06 in2 (1006.59 cm2)

Single Weld End
Single Weld End
Single Flanged End
Single Flanged End
Single Flanged Weld End
Single Flanged Weld End

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 the 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: For appropriate flange temperature/pressure ratings, see catalog flange data
  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.

 

DiameterPressureOverall Length and WeightNon-concurrant


movements
Spring rates
Flanged

Ends
Weld

Ends
Combination

Ends
AxialAxialLateralAngularTorsional
Overall LengthWeightOverall LengthWeightOverall LengthWeightCompression
PSIGin.lb.in.lb.in.lb.in.in.deg.lb./in.lb./in.n./lb./deg.in./lb./deg.

x 106
kg/cm2mmkgmmkgmmkgmmmmGradkg/mmkg/mmN-M/GradN-M/Grad

x 105

128012137164514912.940.531041621131790.3358
5.630562.340620.535641.474.713.51173818.20.3415
6018144225220985.411.75102383781020.191
4.245765.555923.650844.513744.5114710.40.1943
25241512858261048.574101661287.10.1335
1.861068.671126.466047.321810211327.20.1357
12210122431649141461.410.21101952147948400.6363
14.830511040622.335666.435.85.33113526585.40.6471
210182532259201562.680.7810105120744530.3387
14.845711555926.850870.968.119.811193746.10.3445
3002429628101261983.971.7110144712956270.2447
21.161013571145.96609010143.311262363.80.2488

 

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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