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Custom-Designed Single Flanged Expansion Joints

October 12, 2020

Us bellows single expansion joint 157943

Type: Single Flanged Expansion Joint
Size: 6″ to 18″ Dia. Range
Material: 321 Stainless Steel | 304 SS | 316 SS
Design 1055°F | 2 psig | 5/8 ” Axial Travel | 5/8″ Lateral Offse
Testing: 100% Dye-Penetrant | Air, Soap, & Bubble

U.S. Bellows provided single expansion joints custom-designed for an oil refinery. The 12” diameter bellows are fabricated from 321 stainless steel, the liner is 304 stainless and the flanges are fabricated from carbon steel. The remaining bellows ranged in diameter from 6” to 18” and were fabricated with 316 stainless steel bellows, liners, and flanges. Design conditions: design temperature = 1055°F, operating pressure = 2 psig, axial travel = 5/8”, lateral offset = 5/8”. Each unit was hydrostatically tested prior to shipment. U.S. Bellows provides expansion joint solutions for all markets and applications including biofuels/bioenergy, carbon black industry, paper mills, sugar mills, and wastewater management.

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Single Flanged Expansion Joints for a Leading Manufacturer & Designer of Transformers & Power Supplies for an Industrial Applications Company

August 24, 2020

U.s. bellows custom designed single fanged expansion joints for a leading manufacturer & designer of transformers & power supplies for an industrial applications company

Type: Single Flanged Expansion Joint
Size: 5″ Length | 6″ ID | 11″ O.D.
Material: ASTM A240-316 Stainless Steel
Design 200°F | 150 psig | 7,942 lb/in. Lateral Spring Rate
0.625 ” Axial Travel | 803 lb/in. Axial Spring Rate
0.125″ Lateral Offset | 225 psig Test Pressure
Testing: 100% Dye-Penetrant | Air, Soap, & Bubble

The single expansion joint type is simply a bellows element with end connections. It is the least expensive type but requires that the piping be controlled as to the direction of the movements required of the unit. This type of expansion joint should not be expected to control the movement of the pipe. If the piping analysis shows that the expansion joint must accept axial compression, then the piping must be guided and constrained in other locations so that only that axial movement will occur. The flanges and bellows are fabricated from ASTM A240-316 stainless steel. The units are 6″ in diameter, 5″ long, and have an 11″ outside diameter. Design conditions are: design pressure = 150 psig, test pressure = 225 psig, design temp. = 200°F, axial travel = 0.625″ compression, axial spring rate = 803 lb/in., lateral offset = 0.125″, and lateral spring rate = 7,942 lb/in. *Designed in accordance with the Standards of the Expansion Joint Manufacturers Association, 10th E, and welding per ASME Boiler and Pressure Vessel Code Section IX.

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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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Fabric Expansion Joints Custom Designed for an Exhaust Duct at a Gas Turbine in Saudi, Arabia

June 29, 2020

Usbellows fabric expansion joint 155931

Type: Fabric Expansion Joint
Size: 70″ W x 126″ L x 17.5″ Face-to-Face
Material: PTFE Fabric Belt | Stainless Steel Framework
Design Operating Temp: -20°F to 600°F | Operating Pressure +/- 100″ Water Column
Movement +/- 1″ Axial Compression & Lateral Offset Combined
Testing: Dye Penetrant Examined | Anchor Install Test& Q.C. Inspection

U.S Bellows custom-designed a rectangular fabric expansion joint with rounded corners for an exhaust duct application at a gas turbine in Saudi, Arabia. The unit is 70″ W x 126″ L x 17.5″ face-to-face; the fabric belt is PTFE and the framework is stainless steel. The expansion joint is designed for an operating temperature range from -20°F to 600°F, an operating pressure of +/- 100″ water column, and a movement of +/- 1″ axial compression and lateral offset combined. A 100% dye-penetrate exam and anchor install test were performed before shipment.

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Rubber Expansion Joints Designed for Water Cooling Loops at a Chemical Plant

June 24, 2020

Ptp rubber expansion joint 152915 (1)

Type: Neoprene Expansion Joint
Size: 3×10, 6×10, 8×12, 10×14
Material: Neoprene Twin Sphere Rubber Tubing with 304 SS Flanges & Covers
Design Operating Temp: 225°F at 225 psig | 1-3/8″ – 1-3/4″ of Lateral Offset
Testing: Hydro-Tested | PMI on all Rubber Joint Root-Rings

These neoprene expansion joints were custom-designed for water cooling loops at a chemical plant in Louisiana. They have a neoprene twin sphere rubber tubing with 304 stainless steel flanges and covers. U.S. Bellows fabricated five of each of the following dimensions: 3×10, 6×10, 8×12, and 10×14. They are designed for an operating temperature of 225°F at 225 psig and 1-3/8″ – 1-3/4″ of lateral offset. The units were hydro-tested and PMI on all rubber joint root-rings prior to shipment.

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U.S. Bellows, Inc. Custom Designed a Refractory-Lined Expansion Joint for a Regenerator Application in Uruguay

April 13, 2020

Us bellows refractory lined expansion joints 150958

Type: Refractory-Lined Expansion Joint
Size: 43″ Tall x 39-1/2″ Dia.
Material: Carbon Steel | INCOLOY® 825 | 3.75″ Thick Refractory
Design Operating Temp: 653°F at 46 PSIG | 0.25″ Axial Compression
Testing: Hydro-tested | Q.C. Inspection

This refractory-lined expansion joint was custom designed for a regenerator application in Uruguay. The unit is 43″ tall, 39-1/2″ in diameter, fabricated from carbon steel and the bellows are INCOLOY® 825. It is lined with 3.75″ thick insulating and abrasion-resistant refractory. It is designed for an operating temperature of 653°F at 46 PSIG and 0.25” axial compression. The expansion joint was hydro-tested at 68 psig prior to shipment.

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Fabric Expansion Joint Designed for a High-Temperature Duct Application

March 17, 2020

Usbellows fabric expansion joint 170218

Type: Fabric Expansion Joints
Size: 67″ Long x 67″ Wide x 14″ Tall
Material: 3-Layer Fabric Belt with Kaowool Insulation
304 Stainless Steel Angle Flanges
Design Operating Temp: 2012°F at +/- 100″ Water Column
1″ of Lateral Deflection
Testing: 100% Dye Penetrant Testing & Q.C. Inspection

U.S. Bellows custom designed this fabric expansion joint for a high-temperature duct application in Nebraska. The dimensions for the expansion joint are 67” long, 67” wide, and 14” tall. It has a 3 layer fabric belt with kaowool insulation pillow, 304 stainless steel angle flanges, and 6” internal module of kaowool insulation. The unit is designed for an operating temperature up to 2012°F at +/- 100” water column and 1” of lateral deflection. The expansion joint was 100% dye-penetrant tested prior to shipment.

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Hinged Expansion Joints Designed for a Steam Exhaust Application

February 10, 2020

Usbellows hinged expansion joints 159045

Type: Hinged Expansion Joints
Size: 42″ Long | 16″ Nominal Pipe Size
Material: 316L Stainless Steel | Carbon Steel
Design 400°F at 150 psig | 4.25″ Lateral | 1° Angular
Testing: 100% Dye Pen. | Bellows Longitudinal Seams
100% X-rayed | Hydro-Tested at 250 psig

U.S. Bellows custom designed hinged universal expansion joint for a steam exhaust application at a chemical plant in Texas. The units are 42″ long and have a nominal pipe size of 16″. The bellows are fabricated from 316L stainless steel. The flanges, pipe spool, and hardware are carbon steel. They are designed for an operating temperature of 400°F at 150 psig. They are capable of 4.25″ lateral deflection and 1° of angular movement. The expansion joints were 100% dye penetrant tested, the bellows longitudinal seams were 100% X-rayed, and a hydro-test at 250 psig was performed prior to shipment.

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118.25″ Universal Expansion Joint for a Chemical Plant in Saudi Arabia

January 13, 2020

Usbellows universal expansion joint 150651

Type: Universal Expansion Joint
Size: 118.25″ Length | 78″ Diameter
Material: Incoloy 825 | 321 Stainless Steel | 304 Stainless Steel
Design 338°F Operating Temp. @ 4.5 psig | 2 3/8″ Lateral
Testing: X-Ray | PMI | Dye Penetrant | Hydro-tested

U.S. Bellows custom designed this universal expansion joint for a chemical plant in Saudi Arabia. The unit measures 118.25″ long with a 78″ diameter. The bellows were fabricated from Incoloy 825, the welds and liner from 321 stainless steel, and the cover tie rods from 304 stainless steel. It is designed for an operating temperature of 338°F at 4.5 psig and 2 3/8″ of lateral deflection. The expansion joint was 100% dye penetrant tested, the bellows longitudinal seams were 100% X-rayed, PMI examined, and hydro-tested prior to 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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