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Rubber Expansion Joints

Hand-crafted rubber expansion joints provide relief from stresses caused by thermal expansion and contraction in pipelines. 

Rubber expansion joints are available in single- and multiple-arch designs and are custom-built to fit your application requirements. Options include PTFE-lined, concentric reducing, eccentric reducing, filled arch, lightweight, and off-set configurations. With a wide range of elastomers, Kadant Unaflex rubber expansion joints can be designed to operate up to 200 psi and with temperatures up to 500°F in sizes from 1/2” up to 144”.


  • Hand-crafted rubber expansion joints

  • Available in multi-arch, filled-arch, taper, offset, and custom configurations
  • Standard and special drilling including ANSI, DIN, JIS, and Navy
  • Available PTFE-lining


  • Multi-purpose construction
  • Simple retrofit into existing piping system
  • Improved flow, less turbulence
  • Application-specific joints
  • Cost-effective solution to compensate for movement in piping systems

Custom Solutions

Have an application that requires a specialized solution? We focus on making the best solution possible with quick turnaround. We are ready to engineer your custom-designed expansion joint to fit your application. Our goal is to outperform each and every time, and we do this by working closely with our customers to develop reliable products that exceed your expectations.

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Complete Solutions

From products and services to training and support, we can design, manufacture, install, and maintain your fluid handling systems. Partnering with us ensures your operations are fully integrated for maximum performance.