Rectangular Expansion Joint For rectangular ducting applications

Bellows Systems manufactures Rectangular Expansion Joints to absorb thermal movements and vibration in either square or rectangular ducting in applications such as turbine condensers. Most Rectangular Expansion Joints are custom designed for specific design and service conditions depending on the application. 

Bellows Systems Rectangular Expansion Joints are made “V” shape convolution profile and available in single or double miter and camera corner configurations. “U” shape convolution profile with rounded corner configuration is also available in limited sizes.

The Rectangular Expansion Joints are designed per EJMA code.

Standard designs available in wide range of custom sizes from for low pressure, high temperature applications upto 1800 °F. Standard materials include,

  • 300 series and duplex stainless steels
  • High nickel Alloys
  • Aluminum
  • Carbon and low alloy steels

Optional features include,

  • Flow Liners (single or dual telescoping type)
  • Weld Ends or Flanged end connections
  • Control rods

Contact our engineering or sales teams, we can help design the optimum rectangular expansion joint solution for your high temperature ducting application.

Rectangular Expansion Joint

To learn more about the Rectangular Expansion Joint products that Bellows Systems offers, call us at (800) 233-0623 or email us at

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