Expansion Joints

Oakridge Bellows is located in New Braunfels, TX and was founded in 2005.

Oakridge Bellows specializes in fabrication of Metal Bellows to meet ASME section VIII, B31.1, and B31.3 code design standards and specifications.

Metal Expansion Joints / Bellows were developed in 1920.  Metal bellows are elastic vessels that can be compressed or extended when pressure is applied. When the pressure is released, the bellows will return to its original shape, provided the material has not been stressed past its yield strength.

Products include:

• 2-ply testable metal bellows
• boiler vestibule casing expansion joints
• coal pulverizer duct metal expansion joints
• edge-welded metal rectangular bellows
• flanged and flued head expansion joints
• HRSG penetration seal bellows
• HRSG metal clam-shell bellows
• steam extraction expansion joints and air pre-heater metal rectangular expansion joints
• Alloy 625 bellows expansion joints
• bellows with Marmon style flanges
• box fold expansion joints
• cement ducting expansion joints
• condenser seal metal expansion joints
• expansion joints with heavy covers
• high temperature metal expansion joints
• hinged metal expansion joints
• HVAC ducting expansion joints
• OEM style duct expansion joints and vacuum bellows can be fabricated