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Universal Expansion Joints Custom-Designed for a Hot Air Blower

July 12, 2021

Universal Expansion Joints Custom-Designed for a Hot Air Blower

These universal expansion joints were custom-designed with guided tie rods, internal liners, and bellows protection covers for a hot air blower. These expansion joints are used in a plant that manufactures tires for cars and light-duty trucks. High Heat is required in the manufacturing process to vulcanize rubber to components made of steel and polyester and to also cure the rubber. The universal expansion joint can allow for large amounts of lateral deflection that can occur in more than one plane. By increasing or decreasing the distance between the two bellows by varying the length of a section of pipe spool, the designer can accommodate for the given amount of lateral deflection. These expansion joints are designed for an operating pressure of 50 psig at 383 degrees F. A total of 18 were supplied with half of the units measuring 40” dia. x 74-7/8” long x 58-1/2” overall outer dia. The rest measure 36” dia. X 60-1/4” long x 53-3/4” overall outer diameter. The bellows, flange, middle pipe, liner, and lugs are fabricated from 316/316L stainless steel. The rods, nuts, and cover are 316 stainless steel. The 40” dia. unit is designed for 0.394” axial compression and the 36” dia. unit is designed for 0.20” axial compression. Both units are designed for 0.394” lateral movement. Each expansion joint was inspected by quality control and hydraulic pressure tested before shipment. We manufacture expansion joints to relieve stress in piping systems whether the thermal movement is axial, lateral, or angular in plants such as Food Processing, Automotive, Hospital Steam Lines, Semiconductors, and other types of Green Energy plants.

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U.S. Bellows Designed an Expansion Joint & Duct Work Assembly during a Plant Turnaround

April 26, 2021

U.S. Bellows Designed a 60" Diameter Universal Expansion Joint & Duct Work Assembly during a Chemical Plant Turnaround

U.S. Bellows designed a universal expansion joint and duct work assembly for a 3rd pass outlet converter to economizer duct work application at a chemical plant in 8 weeks. Expansion joints are used in many economizer ductwork applications near boilers. Plant turnarounds are a vital part of a plant’s maintenance program. They involve a scheduled stoppage of part or all of a plant’s operations. During this time, existing equipment such as expansion joints are removed and replaced with new or upgraded expansion joints. On-time delivery is critical to the plant turnaround schedule in order to limit the amount of time the plant is in shutdown. The total assembly included a universal expansion joint, over 125 feet of custom-built 60” diameter duct work, including elbows, tees, saddles, nozzles, and spring supports. The expansion joints were designed for 0.3 degrees angular movement, 2.875″ lateral, and 3.25″ axial extension. The design conditions were 5 psig at 890 degrees F. The liner, cover, and ducting are fabricated from 304 stainless steel and the bellows are 321 SS. A dye penetrant exam, soap & air test, and spot x-ray on all duct seam welds were performed before shipping. U.S. Bellows has worked extensively on boiler units within the chemical industry and has provided products and designed supports for the unique requirements of economizers including the use of stainless steel and super alloys to support applications such as this involving highly corrosive media.

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78” Dia. Universal Expansion Joint Custom-Designed for One of the Oldest Scientific Innovators in the Engineering Industry

March 29, 2021

78” Dia. Universal Expansion Joint Custom-Designed for One of the Oldest Scientific Innovators in the Engineering Industry

U.S. Bellows, Inc. custom-designed universal expansion joints for one of the oldest scientific innovators in the engineering industry. Large diameter steam pipelines are a part of almost every plant and are associated with innovations in areas like nanotechnology, fuel cells, biomaterials from renewable resources, materials for personal protections (which have been especially important in the time of COVID), emerging video display technologies, and semiconductors. These plants manufacture polymers such as neoprene, nylon, chlorofluorocarbons, synthetic pigments. In this case, the universal expansion joint bellows and liner are fabricated from A240 Gr. 321, the pipe, tie rods, and flanges are fabricated from A240 Gr. 304 stainless steel. They are designed for low pressure (8 PSI) and range from 36” pipe x 60” long up to 78” pipe x 117” long. Per our QC requirements and/or client specifications, the expansion joints were dye-penetrate examined and soap, air bubble tested prior to shipment.

Us bellows universal expansion joint 137373 fab sm
78″ Universal Expansion Joint in Fabrication
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Pressure Balanced Tee Universal Expansion Joint for a Boiler Feed Pump Turbine Exhaust

March 2, 2021

Pressure Balanced Tee Universal Expansion Joint for a Boiler Feed Pump Turbine Exhaust

U.S. Bellows, Inc. custom-designed a pressure balanced tee universal expansion joint for a boiler feed pump turbine exhaust. The expansion joint is 96” diameter and 288” OAL and is designed for 2″ axial movement at 315°F and 15 psig. The bellows, liner, and turning vanes are 304 stainless steel. The remainder of the assembly is fabricated from carbon steel. The expansion joint was dye penetrant examined, and a chemical cleaning of the interior surfaces was performed to remove any oil and grease. U.S. Bellows also conducted a stress analysis and a pneumatic test at 23 psig.

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U.S. Bellows Custom-Designed Tied Universal Expansion Joints for Service at a Chemical Plant

February 9, 2021

U.S. Bellows Custom-Designed Tied Universal Expansion Joints for Service at a Chemical Plant.

Universal expansion joints such as these are used in chemical plants that manufacture petrochemicals (such as ethylene and styrene monomer), polymers, and building products (PVC profiles for windows, doors, and decking). The units range from 26” to 48” in length and 8” to 20” in diameter. The bellows were fabricated from 321 stainless steel, the weld ends, pipe spools, and flanges from 304 stainless steel, and the tie rods and hex nuts from carbon steel. They are designed for temperatures ranging from -150°F to 800°F, operating pressures ranging from 50 to 240 psig, and 0.25” to 2.25” of lateral deflection. The expansion joints were air, soap, and bubble tested, 100% dye-penetrant tested and hydro-tested before shipment. The universal pipe expansion joint consists of two bellows separated by a pipe section or spool. The primary purpose of this arrangement is to have a unit that will accept large amounts of lateral deflection. The amount of lateral deflection they can accept is a function of the amount of angulation each bellows can absorb and the distance between the bellows. For a given bellows element, the amount of lateral deflection capability can be increased or decreased by simply changing the length of the center spool.

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Gimbal Expansion Joints for Crude Oil Pipelines in Canada

January 12, 2021

Gimbal Expansion Joints Fabricated for Crude Oil Pipelines in Canada

U.S. Bellows custom-designed and fabricated universal gimbal expansion joints for 24” diameter crude oil pipelines at a power plant in Canada. The bellows are fabricated from A240 316 stainless steel bellows, the flanges are A105N carbon steel, and the plates are A516 70 carbon steel. The expansion joints are designed for a 10 degrees angular rotation at 285 psig up to 100 degrees F. They are designed for an angular spring rate of 4900 in-lb/dec and vertical offset of 10-1/4”. The units measure 43” x 43” x 110” and 38” x 38” x 79”.

Us bellows gimbal ej 3d model

3D Modeling was done so that our engineers can check the “fit-up” to confirm the design, perform stress analysis, or other modeling benefits prior to fabrication. We performed hydro tests, completed NDE reports, and supplied Material Test Reports per the client requirements.

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Tied Universal Elbow Expansion Joint Custom-Designed for Ammonia and Waste Processing for a Liquid Nitrogen Fertilizer Plant

August 10, 2020

Usbellows tied universal expansion joint 143516

Type: Tied Universal Elbow Expansion Joint
Size: 20″ Dia. | 112″ Face-of-Flange to Center Line of Elbow OAL
Material: Inconel® 625 Bellows | 304 H Stainless Steel
Design Operating Temp: 1,150°F at 140 psig | 4″ Lateral Deflection
Testing: Dye Penetrant Examined | 100% X-Rayed Bellows | Hydro-tested

U.S. Bellows, Inc. custom-designed a tied universal elbow expansion joint for ammonia and waste processing for a nitrogen fertilizer plant. The bellows and liner are fabricated from Inconel® 625. The pipe, tie rods, and flanges are fabricated from 304 H stainless steel. It is designed for an operating temperature of 1,150°F at 140 psig and 4″ of lateral deflection. The assembly is 20″ in diameter and 112″ face-of-flange to the centerline of elbow OAL. The unit was 100% x-rayed, dye-penetrate examined, and hydro-tested before shipment.

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322″ Universal Expansion Joint with Duct Work for a Refinery in Louisiana

November 11, 2019

Usbellows universal expansion joint 144495

Type: Universal Expansion Joints with Duct Work
Size: 322″ Centerline-to-Centerline | 48″ Diameter
Material: 304 Stainless Steel | Carbon Steel
Design 400°F Operating Temp. @ 91 psig | 3.3″ Lateral
Testing: 100% Dye-Penetrant | PMI | Hydro-tested

U.S. Bellows custom designed this 322″ universal expansion joint with ductwork for a refinery in Louisiana. The bellows, ductwork, and flanges were fabricated from 304 stainless steel and the rest of the components from carbon steel. The unit is 322″ centerline to centerline with a 48″ diameter. It is designed for an operating temperature of 400°F at 91 psig and 3.3″ of lateral deflection. The expansion joint was completed in 12 weeks and was 100% dye-penetrant, PMI, and hydro-tested prior to shipment.

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Universal Expansion Joint with Oversized Bellows for a Crude Oil Line Application in Saudi Arabia

September 3, 2019

Usbellows universal expansion joint 148639

Type: Universal Expansion Joints
Size: 48″ Diameter | 77″ FTF
Material: 316 Stainless Steel | Carbon Steel
Design 150°F Operating Temp. @ 25 psig | 5.3″ Axial | 2″ Lateral
Testing: Hydro-tested @ 50 psig

U.S. Bellows custom designed this universal expansion joint for a crude oil line at an oil refinery in Saudi Arabia. This expansion joint was specially designed with oversized bellows to keep a smooth flow of oil along the line and avoid turbulence. The bellows were fabricated from a 316 stainless steel with all of the other components from carbon steel. The unit is 48″ in diameter and 77″ face-to-face. It is designed for an operating temperature of 150°F at 25 psig, 5.3″ of axial compression, and 2″ of lateral deflection. The unit was hydro-tested at 50 psig prior to shipment.

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11 Foot Long Universal Gimbal Expansion Joints Designed for an Oil Refinery in Canada

October 1, 2018

11 Foot Long Universal Gimbal Expansion Joints Designed for an Oil Refinery in Canada

Type:  Universal Gimbal Expansion Joint
Size:  102″ – 133″ L | 41.5″ W | 41.75″ H | 32″ diameter
Material:  Carbon Steel | 304 Stainless Steel
Design:   100°F @ 285 psig | 102 lb/in/degree Rotational
Spring Rate | 15.4″ Lateral Deflection
Testing:   Hydrotested @ 428 PSIG

U.S. Bellows custom designed these universal gimbal expansion joints for an oil refinery in Canada. The bellows and liners are fabricated from 304 stainless steel, and the remainder of the components are fabricated from carbon steel. The units are 102″ and 133″ long respectively, and both are 41.5″ wide, 41.75″ tall, with 32″ OD. They are designed for an operating temperature of 100°F at 285 psig, with a 102 lb/in/degree rotational spring rate and 15.4″ of lateral deflection. The expansion joints were 100% dye-penetrant tested and hydro-tested at 428 psig prior to shipment.

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Universal Expansion Joints Designed for a Tank Farm

September 3, 2018

Universal-Expansion-Joint-155090v2

Type: Universal Expansion Joint
Size: 24″ Dia. x 48″ F-F | 20″ Dai. x 50″ F-F
Material:  Carbon Steel | 316 Stainless Steel
Design: Operating Temperature: 180°F
Pressure: 264 PSIG
Movement: 2.75″ Lateral Deflection
Testing: 100% Dye-penetrant tested, X-rayed, Hydro-tested

These universal expansion joints were designed by U.S. Bellows for a tank farm application in Saudi Arabia. 16 of the units were 24″ dia. x 48″ face-to-face and 8 of the units were 20″ dia. x 50″ face-to-face. The bellows were fabricated from 316 stainless steel with the rest of the components from carbon steel. They are designed for an operating pressure of 264 psig at 180°F with 2.75″ of lateral deflection. The units were 100% dye-penetrant tested, x-rayed and hydro-tested prior to shipment.

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Universal Expansion Joints Designed for a Fuel Tank Farm

March 5, 2018

Universal Expansion Joints Designed for Fuel Tank Farm in Saudi Arabia

Type: Universal Expansion Joint
Size: 8″ x 16″ FTF | 24″ OAL
Design: 316 Stainless Steel | Carbon Steel
Material: 185°F at 264 psig & 2.75″ Lateral
Testing: Hydro-tested at 395 psig & 100% Dye-Penetrant

These universal expansion joints were designed for fuel tank farm in Saudi Arabia. The units are 8″ x 16″ face-to-face and 24″ OAL. The bellows were fabricated from 316 stainless steel and the rest of the unit from carbon steel, with a custom 3-layer paint coat. They are designed for an operating temperature of 185°F at 264 psig and 2.75″ of lateral deflection. The expansion joints were 100% dye-penetrant tested and hydro-tested at 395 psig prior to shipments.

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Tied Double Elbow Universal Expansion Joints for a Liquid Hydrocarbon Service Application at a Paraxylene Complex

January 8, 2018

Tied Double Elbow Universal Expansion Joints for a Liquid Hydrocarbon Service Application at a Paraxylene Complex

Type: Universal Expansion Joint
Size: 118″ CL-to-CL, 132 3/8″ FTF, & 24″ OD
Material: 304 Stainless Steel/Carbon Steel
Design: 400°F at 310 psig & 1 1/8″ Lateral Movement
Testing: Dye-Penetrant, PMI, X-Ray, and Hydrotested at 465 psig

U.S. Bellows custom designed 2 of these tied double elbow universal expansion joints for a liquid hydrocarbon service application at a paraxylene complex in Saudi Arabia. The bellows were fabricated from 304 stainless steel and the piping and hardware from carbon steel, and has a 3-coat paint system. The unit is 118″ CL-to-CL of the elbow, 132 3/8″ face-to-face, and 24″ OD. They are designed for an operating pressure of 310 psig at 400°F with 1 1/8″ of lateral deflection. The unit was hydro-tested at 465 psi, X-ray tested the bellows long seam and pipe, PMI all alloys, and 100% dye-penetrant exam on all weld prior to shipment

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Custom 335″ Long Universal Expansion Joint for an ACC Unit in New York

October 2, 2017

Custom 335" Long Universal Expansion Joint for an ACC Unit in New York

Type: Universal Expansion Joint
Size: 118″ CL-to-CL, 132 3/8″ FTF, & 24″ OD
Material: 304 Stainless Steel/Carbon Steel
Design: 400°F at 310 psig & 1 1/8″ Lateral Movement
Testing: Dye-Penetrant, PMI, X-Ray, and Hydrotested at 465 psig

U.S. Bellows custom designed 8 of these 335″ long universal expansion joints for a vacuum ducting service, exposed to high velocity steam and condensate for an ACC unit in New York. The bellows were completely fabricated from 304 stainless steel, with the weld-ends and hardware from carbon steel. The units are 127″ in diameter and 335″ in length. They are designed for an operating pressure at full vacuum to 15 psi at -10 to 250°F and 7.25″ of lateral deflection. The units were vacuum tested at 28.5″ of mercury, 100% dye-penetrant examined, and X-ray long seam bellows.

This expansion joint was featured in our lastest Technical Bulletin:
Click here to learn more about air-cooled condenser expansion joint

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Custom 22′ Long Universal Expansion Joint for a Combined Cycle Power Plant in Texas

June 5, 2017

Custom 22' Long Universal Expansion Joint for a Combined Cycle Power Plant in Texas

Type: Universal Expansion Joints
Size: 9′ 2″ diameter and 22′ 10″ OAL
Material: 321 Stainless Steel and Carbon Steel
Design: 250°F at 7.25 psig/FV and 1.5° angulation
Testing: Dye-penetrant, high vacuum (70 mbar), and hydrotested

U.S. Bellows custom-designed 23 of these tied universal expansion joints for a combined cycle power plant in Texas. This expansion joint is one of 23 units constructed and has a nominal diameter of 9′ 2″ with an overall length of 22′ 10″. The bellows are fabricated from 321 stainless steel with a carbon steel shell and tie rods. This tied joint is part of a condenser duct complex that is designed to operate at 250° F at 7.25 psig/FV, with compression of 3/16″, lateral deflection of 5 7/8″, and +/- 1.5° angulation. All expansion joints were 100% dye-penetrant tested, hydro-tested, and high vacuum (70 mbar) tested prior to shipment.

This expansion joint was featured in our lastest Technical Bulletin:
Click here to learn more about air-cooled condenser expansion joints

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Custom 178″ Diameter Tied Universal Expansion Joints for an Exhaust Duct Application at a Power Plant in Virginia

April 17, 2017

Custom 178" Diameter Tied Universal Expansion Joints for an Exhaust Duct Application at a Power Plant in Virginia

Type: Tied Universal Expansion Joint
Size: 178″ in diameter and 276″ in length
Material: 321 Stainless Steel and Carbon Steel
Design: 248°F at 22.5 psig, operating load of 1256 lb/in, and 6.25″ lateral deflection
Testing: Dye-Penetrant and Soap & Air

U.S. Bellows custom designed five of these 178″ tied universal expansion joints for an exhaust duct application in a power plant in Virginia. The expansion joints are 178″ in diameter and 276″ in length. The bellows were fabricated from 321 stainless steel and the rest of the assembly from carbon steel. They are designed for an operating temperature of 248°F at 22.5 psig, an operating load of 1256 lb/in, and 6.25″ of lateral deflection. All units were 100% dye-penetrant and soap and air tested prior to shipment. Because of the sheer size of the units, all of the tie rod supports were FEA analyzed.

This expansion joint was featured in our lastest Technical Bulletin:
Click here to learn more about air-cooled condenser expansion joints

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116″ Universal Expansion Joint for a Water Supply System in California

January 30, 2017

116" Universal Expansion Joint for a Water Supply System in California

Type: Universal Expansion Joint
Size: 116″ in diameter/60″ long
Material: AL6XN Stainless Steel/Carbon Steel
Design: 100°F at 220 psig, 9″ axial compression
Testing: Dye penetrant, radiographic, and hydro tested

U.S. Bellows custom designed this 116″ universal expansion joint for a water supply system in California. The unit measures 116″ in diameter and 60″ long. The bellows and pipe spool were fabricated from AL6XN stainless steel and the flanges from carbon steel. It is designed for a temperature of 100°F at 220 psig and 9″ of axial compression. The expansion joint was dye penetrant, radiographic, and hydro tested prior to being shipped out.

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82″ Long Universal Expansion Joint for a Power Plant in Chile

July 5, 2016

82" Long Universal Expansion Joint for a Power Plant in Chile

U.S. Bellows custom designed this universal expansion joint for a steam line extraction application at a power plant in Chile. The unit is 8″ in diameter with an overall length of 82″. The bellows were fabricated from 321 stainless steel with the weld ends and tie rods from carbon steel. The expansion joint is designed for an operating pressure of 145 psig at 678°F with 1.25″ of lateral deflection. All welds were 100% dye-penetrant examined and hydrotested prior to shipment.

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U.S. Bellows Emergency Response Team Refurbishes a Universal Expansion Joint on a Rush Basis for a Chemical Plant in Louisiana

June 13, 2016

U.S. Bellows Emergency Response Team Refurbishes a Universal Expansion Joint on a Rush Basis for a Chemical Plant in Louisiana

Saturday morning of Memorial Day weekend, the U.S. Bellows team received an emergency request from a large chemical plant who needed to refurbish an expansion joint by replacing both of the bellows. Within 30 minutes, the customer had a response and the project was under way.

U.S. Bellows engineers consulted with the customer and requested the unit be shipped to the facility immediately. After receiving the expansion joint, the team performed a positive material identification (PMI) test. U.S. Bellows assessed the expansion joint and determined the 316 stainless steel bellows could be refurbished. Once the results were concluded, engineering drawings and calculations were finalized.

U.S. Bellows made certain that, despite the Holiday weekend, a skilled team of engineers, fitters, welders and quality control personnel were all involved to ensure the success of the project. The customer service and project success rates are unparalleled because U.S. Bellows has the expertise and the tools we need to get it done right, the first time.

As with any last minute project, there were some unforeseen challenges. However, this didn’t stop the completion of the project, or even slow it down! The 30″ diameter universal expansion joint was refurbished and shipped back to the customer within 24 hours. The unit is back in service at the chemical plant with minimal down time due to the fast-acting U.S. Bellows team.

If you have an emergency request, including field service needs, please call us on our Emergency Hotline at (800) 787-5914 or via our online Emergency Request Form

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Universal Gimbal Hinged Expansion Joint for a Methanol and Ammonia Plant in Texas

April 18, 2016

Universal Gimbal Hinged Expansion Joint for a Methanol and Puniversal gimbal hinged expansion joint for a methanol and ammonia plant in Texas Ammonia Plant in Texas

U.S. Bellows designed this universal gimbal hinged expansion joint for a methanol and ammonia plant in Texas. This expansion joint is 48″ in diameter and 145″ OAL. The bellows were fabricated from Inconel 625 and the assembly is carbon steel. The unit is designed for an operating temperature of 752°F at 50 psig, the angular spring rate is 4,374 lb/in., with 3/4″ of axial movement within the gimbal bars. The unit was 100% x-ray, dye-penetrant, and hydro-tested prior to shipment.

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