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View our past expansion joint and duct work projects in the Featured Product Archives

May 14th, 2012 Comments off

Check out some of our past projects in the Featured Product Archives section of our website.

  • View images of metallic and fabric expansion joints, duct work, and combination assemblies.
  • Also read the details on the project itself, including design specifications and testing requirements.
  • The projects are conveniently grouped by the type of expansion joint and then listed descending by the release date.

Here are a few examples:

36″ Tied Universal Expansion Joint for a Petrochemical Plant in Kuwait
36" Tied Universal Expansion Joint
U.S. Bellows Inc. designed and fabricated a 36″ tied universal expansion joint for a petrochemical plant in Kuwait. The expansion joint measures 36″ in diameter x 318″ from center of elbow to face of flange. It is fabricated from 316H stainless steel with Inconel® 800 bellows. The design pressure of the expansion joint is 65 PSIG, and the design temperature is 1076°F. It is designed for axial compression within the tie rods and lateral movement of 3.02″. Hydro-testing was performed at 98 PSIG to assure the integrity of the tie rods and also to assure quality. The pictures show the expansion joint leaving the shop on its way to the customer. The stainless steel flange faces are protected with 3/4″ plywood during delivery.
44″ Double Gimbal Universal Expansion Joint for an Oil Refinery in Wyoming
44" Double Gimbal Universal Expansion Joint
This gimbal expansion joint is designed for angular rotation in two planes of up to 4° in each plane. It has an overall length of 140″ with a total assembly weight of 11,000 lb. It is fabricated with 316 stainless steel bellows and carbon steel piping. This expansion joint was 100% dye-penetrant examined and hydro-tested prior to shipment. U.S. Bellows, Inc. and Piping Technology & Products, Inc. also furnished the spring supports and pipe attachments for this project.
128″ x 229″ Rectangular Fabric Expansion Joints for an Exhaust Duct
128" x 229" Rectangular Fabric Expansion Joints
The fabric expansion joints shown above are fabricated with a three layer fabric belt. The three layers consist of an inner layer of silica cloth, a middle layer of mineral wool and an outer layer of PTFE/coated fiber glass. The frame includes an insulation blanket of mineral wool and stainless steel wire mesh. The frame and liner are fabricated from 3/8″ thick 304 stainless steel and each expansion joint’s frame and liner welds were dye-penetrant tested before shipping. 

Design:
- Pressure: 1 PSIG
- Temperature: 1010°F

Design Movements:
- 2″ Axial Displacement
- 3/4″ Lateral Displacement

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Our Parent Company: Piping Technology Pipe Supports, Pipe Clamps, Pipe Hardware & Insulated Pipe Shoes
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