June — 2012 — The Expansion Joints Blog

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Archive for June, 2012

Engineering, Design and Fabrication of 119″ Expansion Joints, Duct Work and Supports

June 25th, 2012 Comments off

Engineering, Design and Fabrication of 119" Expansion Joints, Duct Work and Supports

U.S. Bellows provided the total engineering, design and fabrication package for this project that included: expansion joints, elbows, duct work, saddle supports, F-type variable spring supports, slide plates and pipe anchors.

Engineering, Design and Fabrication of 119" Expansion Joints, Duct Work and Supports

A total of twelve, 119″ dia. double slotted hinged expansion joints, thirty-six, 72″ dia. elbows and twelve, 119″ dia., 55′ long header ducts were fabricated for a power plant in Mississippi. The expansion joint assemblies were designed for .5° angular movement, 3/8″ lateral, 1-1/2″ axial compression. The design conditions were 5 psig at 300°F. The duct work was fabricated from A-36 carbon steel material and the bellows were fabricated from 304 stainless steel. A dye penetrant exam, soap and air test and spot x-ray on all duct seam welds was performed prior to shipping.

Over 1500 Stock Bellows for Your Quick-Turn/Emergency Requirements

June 18th, 2012 Comments off

We have an inventory of stock bellows for your quick-turn/emergency requirements. Contact us now if you need a replacement expansion joint. We can run it through our expedited manufacturing line using a prefabbed bellows and get it to you within 1-2 days in some cases.

Stock Bellows
Using our inventory, we can quickly assemble and ship a variety of expansion joints including single, single tied, universal, elbow pressure balanced and in-line pressure balanced expansion joints. Stock bellows are available from 2″ to 24″ diameter and in three pressure values: 85 psig, 150 psig and 300 psig.

Emergency Shutdown: Replacement of a Metallic Universal Expansion Joint for a Chemical Plant in Wisconsin

Replacement of a Metallic Universal Expansion Joint for a Chemical Plant in Wisconsin Replacement of a Metallic Universal Expansion Joint for a Chemical Plant in Wisconsin

One of U.S. Bellows’ customer’s existing expansion joint failed and caused a plant shut down. They required an immediate replacement joint. This universal expansion joint order was placed, designed and fabricated in just one day. The order came in at 8:30 am on Saturday, Labor Day weekend and was shipped at 4:00 pm, which minimized the time of the plant shut down. This universal expansion joint is 96″ in overall length, 20″ inside diameter and can absorb 3.25″ lateral movement. A 100% dye-penetration test and a hydro-test were performed to ensure quality.

Three Day Emergency: 40″ Clam Shell Expansion Joint Fabricated for a Chemical Plant in Texas

40" Clam Shell Expansion Joint Fabricated for a Chemical Plant in Texas 40" Clam Shell Expansion Joint Fabricated for a Chemical Plant in Texas

Within a three day span, U.S. Bellows, Inc., fabricated a 40″ I.D., single coded, clam shell expansion joint for a chemical plant in Beaumont, Texas. The chemical company utilized U.S. Bellows’ 24 x 7 Quick Turn/Emergency service. After the representative from the chemical plant completed the online form, the U.S Bellows’ on-call team was immediately paged. Three days later the bellows had been successfully fabricated, welded to an A516-70 heat exchanger shell and shipped to the chemical plant to resume operation. The bellows was fabricated from A240 tp 321 SS and designed at 50 PSIG and 750°F. In order to detect any leaks in the weld, the bellow’s long seam weld was 100% x-rayed and its attachment weld was 100% dye-penetrant.

Custom Thick Wall Flanged and Flued Head Expansion Joints for Heat Exchangers in California

June 11th, 2012 Comments off

Custom Thick Wall Flanged and Flued Head Expansion Joints for Heat Exchangers in California

Various sizes of thick wall flanged and flued head expansion joints were custom designed for heat exchangers in California. Two are 30″ in diameter and two are 18″ in diameter. They were designed for 1″ axial extension and 14 psig at 300°F. All four expansion joints were fabricated from ASTM A-516 Gr. 70 carbon steel material. A dye penetrant exam was conducted prior to shipping.

Use Our Expansion Joint Catalog Online, Download a PDF Version or Request Your Own Copy

June 4th, 2012 Comments off

Access our full expansion joint catalog online, anytime. You can also download a PDF version from our site to use offline. If you would like your own copy, please fill out the Catalog Request Form. Our expanded catalog includes:

  • Expansion Joint Catalog CoverDetails about our bellows design
  • Bellows material characteristics and details
  • Types of deflection, including diagrams and examples
  • Cyclic deflections and cycle life
  • Types of metallic expansion joints (movements, principal advantages, limitations and uses)
  • Accessories, including liners, covers, purge connectors and limit rods
  • A full installation and maintenance guide, including the “Do’s and Dont’s” from EJMA
  • Inspection criteria and typical causes of expansion joint failure
  • Details on expansion joint design, pipe guide spacing, and flange data
  • Sample applications and examples
  • Glossary of terms
  • Safety recommendations
  • Equivalency charts
  • Terms of sale

Fabric Expansion JointsCheck out our new fabric expansion joint catalog online as well.

View the basics about fabric expansion joints, including how they work and some design integrations. Also learn about the factors that influence their design like: temperature, chemical attack, movements, abrasion, pressure fluctuations and summation. Read about fabric expansion joint applications, frame styles, materials, inspection and installation.

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Contact Us: +1 (281) 241-9418 Toll Free: (855) 591-0906 Fax: +1 (713) 731-8640 sales@usbellows.com
Our Parent Company: Piping Technology Pipe Supports, Pipe Clamps, Pipe Hardware & Insulated Pipe Shoes
Fellow Subsidiaries: Sweco Fab: ASME Vessels, Pig Launchers, Duct Work, Strainers & Spectacle Blinds
 Pipe Shields: Pre-Insulated Pipe Supports, Slides, Guides & Anchors

Fronek Anchor/Darling
: Snubbers, Sway Struts & Sway Braces


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