Refractory lined expansion joint explained

Refractory lined Expansion joints are used in extremely high temperature and high pressure applications and are designed to withstand extreme environments. The Refractory lining within the metallic Expansion joint bellows functions to reduce the

pipe wall temperature by 300˚F to 450˚F, depending upon the thickness of the refractory lining.^[3] The lining also helps to withstand the abrasive material from the catalyst in FCCU applications.^[4]

Applications

• Fluid catalytic cracking Units (FCCU)
• Furnaces
• Hot gas turbines
• Styrene plants
• Fluidized bed boilers
• Kilns
• Power recovery trains
• Thermal oxidizers

Notes and References

1. http://www.usbellows.com/expansion-joint-catalog/expansion_joint-glossary.htm#EXPANSION%20JOINTS Expansion Joints
2. http://www.usbellows.com/products/refractory-lined-expansion-joint.htm U.S. Bellows
3. http://www.usbellows.com/products/refractory_joint.htm Refractory Lined Expansion Joints
4. http://www.touchoilandgas.com/maintenance-tips-critical-expansion-a8079-1.html Key Maintenance Tips for Critical Expansion Joint Applications