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LJ-PT™ Rotary Joints

LJ-PT Rotary Joints
The LJ-PT rotary joint is designed for steam service and is commonly used to upgrade LJ rotary joint installations.

The LJ-PT uses a balanced seal impregnated with antimony to provide longer operating life and adjust for angular misalignment. The PT design provides reduced seal loading and increased seal life at higher speeds. The full-flow design reduces pressure-drop through the steam joint and no special tools are required for installation. The LJ-PT is rated up to 450°F (232°C), 225 psig (15 bar), and 400 rpm.


  • Balanced seal design with AI technology
  • External rod-supported, locked in place
  • Seal wear indicator
  • Full-flow design
  • Flexibility in mounting
  • Retrofit type LJ Joints


  • Minimized seal loading and seal wear
  • Increased reliability at higher speeds
  • On-machine measurement of seal wear
  • Reduced pressure drop through joint
  • No special installation tools required
  • No piping modifications, easy upgrade

Custom Solutions

Have an application that requires a specialized solution? Kadant Johnson’s product innovation team focuses on making the best solution in the shortest time possible. Kadant Johnson’s engineering team is committed to providing technology that meets customers’ application demands. Our goal is to work closely with our customers to develop reliable, efficient, and technically advanced products that add value by improving the process and the quality of the end product.

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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.