US Bellows fabricated this 28″ dia., 109″ long universal expansion joint with 1″ thick AA-22 abrasion-resistant refractory lining and pantographic linkage for an FCC unit in an oil refinery. The entire assembly is fabricated from 304H stainless steel with carbon steel pantographs. This expansion joint has two-ply testable bellows with wire mesh strip between the plies. It is designed for an axial movement of 5″, a lateral movement of 5-1/2″ at 1425°F and 45 psig. This unit was 100% dye penetrant tested, all pressure retaining welds were 100% radiographed and the unit was pneumatic tested prior to shipping to Oklahoma.
Upcoming Live Webinar
Sign-up for a Live Technical Webinar…
U.S. Bellows 101 - The Basics of Expansion Joints
Date: Thursday, October 1, 2026 - Register for 10:00 am OR 2:00 pm
*Note: Time Zone is CDT * Central Daylight Savings Time / GMT -5h
Live Webinars are 1 PE/PDH Credit for TX Professional Engineers
Listen to in-depth explanations on how to choose the type of expansion joint that will best suit your system. Learn about the bellows movements throughout the piping system due to thermal changes of mechanical motion. Increase your understanding of the different types of expansion joints and value-added services offered by U.S. Bellows.
Upcoming Webinars:
September 24th: Pipe Support Engineering & Design Webinar 10:00 am OR 2:00 pm
October 8th: Pipe Clamp Design, Application & Installation Webinar 10:00 am OR 2:00 pm
October 15th: U.S. Bellows - Expansion Joints In-depth Webinar 10:00 am OR 2:00 pm
View video recordings from past webinars…
Online Course
Expansion Joint Application and Design
Our Expansion Joint course was developed for the following disciplines…
- Piping system designers that may decide to use expansion joints
- Expansion joint designers use the information provided by piping system designers to determine the best design to meet the requirements.
- Designers that use modern software systems to evaluate different options
- Engineers / Managers: field, maintenance, process, operations, construction, surveyors
*This online course is approved for 8 hrs. P.E. Credits
Register Now