High-Performance FCC Expansion Joints delivered to a major European Refinery

We have successfully manufactured and supplied several high-performance expansion joints for the FCC unit of a major refinery in Europe.

The supplied units include expansion joints, with sizes DN 1400 (≈ 55”) and 34”, specifically designed for FCC applications.

From a technical standpoint, the equipment has been engineered to withstand demanding operating conditions:

• Design temperature: up to 579°C (with additional units designed for 538°C)
• Design pressure: up to 7.1 kg/cm², Test pressure: up to 13.0 kg/cm²
• Materials: high-performance alloys such as SB443 N06625 Gr.1 for bellows, ensuring excellent resistance to high temperature and corrosion.
• Refractory lining: up to 140 mm internal refractory, specially designed for FCC service.
• Design: 2 ply testable bellows with reinforcing/equalizing rings and external covers for maximum reliability.

These expansion joints have been specifically designed to handle hot FCC flue gases, combining high-temperature resistance, mechanical flexibility, and long-term durability under cyclic operation.

At MACOGA, we continue to support our customers worldwide by delivering tailor-made, high-tech expansion joints for the most critical applications in Oil & Gas and refining.

More information: https://www.macoga.com/en/expansion-joints-for-specific-applications/fcc-expansion-joints/intro-fcc-expansion-joints