Metal Bellows Expansion Joints
Custom-engineered single- and dual-bellows designs made from 18-8 stainless steel alloy 321 as well as special alloys including Monel, Inconel, and Hastelloy. Options include PTFE-lined, universally-tied, in-line pressure-balanced, externally-pressurized, Gimbal, and hinged, among other configurations. With a wide range of metals, Kadant Unaflex metal bellows expansion joints can be designed to operate up to 300 psi and with temperatures up to 1500 F in sizes from 2” up to 144”.
Produced from fully-annealed stainless-steel sheet, rolled and seam welded
Standard fittings include weld ends, fixed and floating plate flanges, and raised face slip-on flanges
Two-ply and multi-ply bellows available in various materials
Available PTFE-lining
Standard configurations for quick-ship availability
Simple retrofit into existing piping system
Application-specific joints
Cost-effective solution to compensate for movement in piping systems
Have an application that requires a specialized solution? Kadant Unaflex focuses on making the best solution possible with quick turnaround. We are ready to engineer your custom-designed expansion joint to fit your application.
Metal Bellows Expansion Joints Files
Related Products
Control units can provide additional support to rubber expansion joints by adding rigidity strength when proper anchoring is not available. Control units are also used to restrict the movement allowances of an expansion joint.
Learn More