• Flexican Bellows and Hoses Private Limited

Fccu Expansion Joints

Fluid catalyst cracking unit (FCCU) expansion joints are manufactured in partnership with Expansion Joints Systems, USA, one of the leading manufacturers of FCCUs for petroleum refineries. FCCUs, know as cat-cracker expansion joints are among the most critical and complex types of expansion joints manufactured. These expansion joints are exposed to high temperatures (1500°F), high pressures, large movement conditions, and aggressive media. Great attention and expertise is required in designing the bellows and hardware to ensure that the units perform well in service. Failure of FCCU expansion joints during operation can be extremely hazardous to personnel and very expensive to the user. There are various types of expansion joints used in FCCU applications: tied universals, hinge, gimbal, and pressure balanced. All of these fall into 3 major categories: cold wall, hot wall, and unlined FCCU joints. The bellows membrane design for all three categories is basically the same, although the bellows membrane can be single ply, multi-ply, redundant ply, and reinforced. Flexican Bellows & Hoses is a pioneer bellows manufacturer in India.