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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

View Technical Data on Single, Universal, and Externally Pressurized Expansion Joints

April 30th, 2012 Comments off

View the technical data, including maximum axial and lateral movement, number of corrugations, etc. for single, multi-ply and externally pressurized metallic expansion joints.

Duct Work Photo Gallery Single and Multi-ply Stainless Steel Expansion Joints
Universal Expansion Joints – Data Tables by Nominal Diameter
Externally Pressurized Expansion (X-Flex) Joints

Happy New Years from the U.S. Bellows Team

January 3rd, 2012 Comments off

We're excited to serve your expansion joint nees in 2012!

Happy New Years from the U.S. Bellows Team

U.S. Bellows Company Photograph

Categories: U.S. Bellows News Tags:

Happy Holidays from the Expansion Joint Team

December 19th, 2011 Comments off

Happy Holidays from the Expansion Joint Team…

U.S. Bellows, Inc. is comprised of an accomplished team of expansion joint specialists, including engineers, quality control specialists, and experienced shop fabrication personnel that are ready to serve your expansion joint needs. Our staff, as a whole, represents a combined experience of over 600 years.

Our manufacturing team, engineers, and field service team work together to provide optimum solutions for expansion and contraction in your piping system. With two shifts of employees in our manufacturing facility, we are working around the clock to ensure that your expansion joints are efficiently fabricated to your specific design requirements and delivered within the time frame you have requested.

Below are a few members of our dedicated team who are committed to providing quality service for each and every one of our valued customers:

The U.S. Bellows Team

Meet more of the U.S. Bellows team.

Why choose U.S. Bellows for all your expansion joint needs?

December 5th, 2011 Comments off

Why choose U.S. Bellows for all your expansion joint needs?

Engineering & Design
- Per EJMA Standards (Proud member since 2002 with representation on both the technical and management committees)
- Per Latest Revisions of the ASME B31.1, B31.3 and Section 8, Division 1
- ASME U-Stamp, R-Stamp and NS Certified, ISO 9001:2008 Certified
- Full In-house Design Software and Finite Element Analysis Capabilities
- 24-hour Emergency Service and Field Services Available

Manufacturing Capabilities & Facility
- Roll bellows from 2″ to 138″ in diameter and .010″ to .500″ wall thickness
- Stock bellows and material on-site
- 5x the Resources with subsidiaries, PT&P, SWECO Fab., Pipe Shields and Fronek Anchor/Darling
- More than 450,000 sq. ft. of covered shop space and 35 acre property
- Located near the ship channel (one of the largest ports in the U.S. and in the world)

Quality Control & Assurance
- QA/QC Approval: UOP and GE / Stewart and Stevenson
- Manufacturing Qualifications: ASME Section IX, AWS D1.1 and MIL-STD-248
- SASOL QA Plan: 100% X-ray, 100% Dye Pen., Hydro-test, Pneumatic Test and PMI
- Product Testing: Helium Leak Testing, Fatigue Testing, Burst Testing, Ultrasonic and Radiography Testing

Continuous Improvement
- In-House Training: Welding School, JQ/QC Training Courses, Expansion Joint Application Classes and Fabrication Classes
- Four meetings a week and constant communication amongst engineering, manufacturing and management teams
- Continuing to expand facility and add new members to the U.S. Bellows team

Panoramic View of U.S. Bellows Manufacturing Facility
Panoramic View of U.S. Bellows Manufacturing Facility

Do you have a plant turnaround coming up?

October 24th, 2011 Comments off

Do you have a plant turnaround scheduled or planning one in the near future? PT&P is prepared to be there for you throughout the entire process. From planning, to execution, and follow-up, we have what it takes to accomplish a successful plant turnaround.

Prior to Your Turnaround:
- Call our field service team to assist with plant walk-downs to assess your plant for maintenance, repair or replacement of pipe supports and expansion joints
- Contact our quotations department for immediate pricing on pipe supports, expansion joints, or auxiliary steel needed during the turnaround.
- Consult our experienced engineers for guidance on support placement, materials, finishes, etc. to ensure optimum life of the supports.

During Your Turnaround:
- Use our field service team to guide you through installation, start-up, and replacement to safely and efficiently handle your turnaround.
- For quick delivery, PT&P stocks over 1500 bellows, over 100,000 lb. of insulation materials, over 30,000 spring coils, and over 1 million pounds of standard items

Post Turnaround:
- Receive training to monitor the supports, and identify potential failure, in order to prevent unplanned turnarounds in the future.
- Learn correct size and selection of pipe supports and expansion joints per application for any post-turnaround resolutions.
- Call on our field service team to develop a data book of existing pipe supports and expansion joints and their conditions in order to identify potential maintenance issues in upcoming turnarounds.

Examples:

Metallic Expansion Joint Refurbished in 2 Days

Metallic Expansion Joint Refurbished in 2 Days

A rectangular metal expansion joint was refurbished  on an emergency   basis for a local chemical plant. Upon arrival, it was acid washed and   dye-penetrant examined for any cracks.  View the full Article.

Refurbishment of 54" Pressure Balanced Elbow Turbine Crossover Expansion Joints

Refurbishment of 54" Pressure Balanced Elbow Turbine Crossover Expansion Joints

U.S.   Bellows, Inc. refurbished two pressure balanced elbow expansion joints with a quick turnaround for a power generation plant during outages.   They are designed for high pressure turbine crossover piping. The first 54″ outside diameter expansion joint leaked from a crack in the bellows   causing an unscheduled outage.  View the full article.

4" Single Expansion Joint

4" Single Expansion Joint

This expansion joint was received in the morning and shipped to the customer the very same day. The bellows, liner and cover were replaced and the carbon steel parts were sand blasted, cleaned and painted. A dye-penetrant test and hydro-test to 518 PSIG were performed prior to shipment. View the full article.

Same Day Turnaround Service on an 8" Single Expansion Joint

Same Day Turnaround Service on an 8" Single Expansion Joint

This expansion joint was received in the morning, refurbished by adding new bellows and limit rods, and then shipped the very same day. New 321 stainless steel bellows were fabricated and the existing flanges were reused by sandblasting and then painting for corrosion protection. View the full article.

A Custom Spring Support Was Designed Using a Metal Bellows Instead of a Spring Coil

October 17th, 2011 Comments off

A Custom Spring Support Was Designed Using A Metal Bellows Instead Of A Spring Coil

A custom spring support was designed using a metal bellows instead of a spring coil. The bellows was fabricated from stainless steel, because it will be used in a highly corrosive, off-shore environment. By utilizing the metallic bellows, it was much easier to customize for a short run production, produce variations of spring rate, and develop a high load-carrying capacity. An added benefit of using the bellows instead of a custom coil was that it reduced fabrication time by half. The rolled plate shown on the left is welded to the structural pipe on the platform and a riser clamp was attached on the right.

Reasons to Choose a Fabric Expansion Joint versus Metal Expansion Joint

September 19th, 2011 Comments off

Reasons to choose a fabric expansion joint

Reasons to choose a fabric expansion joint:

  • Good for high temperature applications
  • High movement capabilities
  • No size restraints
  • Less expensive to design and fabricate
  • See more reasons in our catalog

Reasons to choose a metal expansion joint

Reasons to choose a metal expansion joint

42″ Diameter Neoprene Fabric Expansion Joint for a Generator Cooling Fan in a Power Plant.

September 12th, 2011 Comments off

42 Inch Diameter Neoprene Fabric Expansion Joint for a Generator Cooling Fan

This neoprene fabric expansion joint is 42″ I.D. by 7-3/4″ face-to-face and is designed for a generator cooling fan in a power plant. The angle frame ends are fabricated from carbon steel, and the neoprene fabric belt is fastened to the angle flanges by two stainless steel clamps. The expansion joint absorbs vibration between the air supply duct and the cooling fan. A dye penetrant exam was performed on the welds of the angle iron flanges prior to shipping to the customer ahead of schedule.

Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance

August 29th, 2011 Comments off

This week’s featured article is on expansion joint burst testing. The objective of a burst test is to determine the ultimate pressure resistance that a bellows can absorb prior to failure. Burst tests help determine the margin of safety and safety factor to be used in a specialized bellows design. During a burst test, hydrostatic pressure is slowly increased until failure occurs, which usually happens in one to two hours. Burst testing is conducted at ambient temperatures to determine a bellows pressure rating. We follow all the necessary safety precautions for personnel involved, such as placing the bellows in a high strength steel cage and using a safety shut-off switch. Based on the burst test results, a safety factor is applied, thus establishing the ultimate pressure rating.

Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance

 

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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

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: Snubbers, Sway Struts & Sway Braces


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