Politeknik Engineerin Ltd.

Politeknik Engineerin Ltd.

Externally Pressurized Expansion Joints

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Bellows Material: 304ss, 316ss, 321ss: Balance of Materials: Carbon Steel: Design Temperature: 400°C

  • Externally pressurized expansion joints are used if there would be large axial movements.
  • This type of expansion joint pressurizes the bellows externally, eliminating column instability concerns for the bellows.
  • This configuration provides an outside cover protecting bellows from external elements and inside pipe acts as a liner protecting bellows from flow medium and and streamlines the flow.

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