Fourteen Externally Pressurized Expansion Joints

Upcoming Live Webinar

Sign-up for a Live Technical Webinar…

U.S. Bellows 101 - The Basics of Expansion Joints

Date: Thursday, December 12, 2024 - 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:

November 21st: Constant Spring Supports Design and Application Webinar 10:00 am OR 2:00 pm

November 28th: Pipe Support Field Inspection, Installation and Maintenance Webinar 10:00 am OR 2:00 pm

December 5th: Slide Plates & Pipe Rollers in the Fight Against Friction 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


	These externally pressurized expansion joints were designed in various sizes for NASA. The diameter ranges from 4″ to 10″ and the overall length ranges from 21″ to 42″. The expansion joint assemblies were fabricated with 304 stainless steel bellows and 300 lb. carbon steel flanges. The design conditions were 200 PSIG at 500°F. Externally pressurized joints are unique in that they can absorb large amounts of axial travel.
They also incorporate internal guide rings that serve as limit stops in case of anchor failure. The expansion joints were 100% dye-penetrant examined and hydro-tested prior to shipment.