Expansion Joints

METAL, RUBBER & COMBINED TECHNOLOGIES EXPANSION JOINTS

We offer a full range of expansion joint products in the highest grades of EPDM, Butyl, Neoprene, Nitrile, Viton®/FKM and PTFE, as well as stainless steel and more exotic alloys including Monel®, Inconel® and Hastalloy®.  We inventory nearly every style and size expansion joint and are THE PROBLEM SOLVERS when it comes to thermal compensation applications. Please contact our highly trained customer service representatives to assist you in finding the optimal design for your application.

Our extensive inventory includes Rubber Joints, Rubber Connectors, Metal Bellows, PTFE Expansion Joints, Fabric Joints and more.

When selecting our expansion joint assemblies, you can be rest assured these joints were designed and manufactured to last.  Developed by engineers dedicated to state-of-the-art technologies combined with proven processes, our joint quality is superior in every way.  We offer a large variety to meet multiple applications for use in many industries.  Our manufacturer, Kadant-Unaflex is ISO 9001:2015 certified and quality control is rigorous, meeting MIL-I-45208 and MIL-Q-9858 requirements.  Kadant-Unaflex holds active memberships in several industry associations including the Fluid Sealing Association (FSA), The Association for Hose and Accessories Distribution (NAHAD), and The International Sealing Distribution Association (ISD).  No one can offer the wide selection and superior performance and security found in our expansion joint line.

Metal Bellows Expansion Joints

metal bellow expansion joints

Our metal bellows expansion joints are often used to compensate for thermal expansion of hot piping systems.  They are used in pipelines and process vessels to absorb motion and vibration in the systems and allow movement to account for ground settlement or earthquakes. Our products incorporate the latest recommendations of the Expansion Joint Manufacturers Association.

Rubber Expansion Joints

rubber expansion joints

Our rubber joints provide time-tested ways to accommodate pressure loads, relieve movement stresses, reduce noise, isolate vibration, compensate for misalignment after plants go on stream, and prolong the life of motive equipment.  Hand-crafted rubber expansion joints are available in single – and multi-arch designs and are custom-engineered to fit your application requirements.  Available options include eccentric reducing, concentric reducing, filled arch, lightweight and off-set configurations.  They can be designed to operate up to 200 psi and withstand temperatures up to 500º F.  Sizes available from 1/2″ to 144″.

PTFE Expansion Joints

PTFE Expansion Joints

Solid molded PTFE Lined expansion joints are used when a corrosion-resistant material is needed to withstand high pressure and temperatures with space-saving design.  PTFE is a synthetic fluoropolymer which fits numerous applications due to its non-stick nature and resistance to certain chemicals.  Elastomeric coverings on solid PTFE and PTFE-lined metallic Expansion Joints are designed for environmentally corrosive applications.  A Kevlar® reinforcement overlay can be used to increase working pressures and provide additional safety factors for PTFE Expansion Joints.

Fabric Expansion Joints

fabric expansion joints

ThermaFlex Fabric Expansion Joints are non-metallic flue duct expansion joints that provide stress relief for piping and ducting systems by absorbing thermal growth and shock, isolating mechanical vibration, and allowing for misalignment. All ThermaFlex expansion joints are precision engineered specifically for your application and requirements.  ThermaFlex Flue duct expansion joints are designed to handle low pressure (±3 psig) applications with temperatures ranging from -100°F to more than 2000°F.