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Fabric Expansion Joint for an Inlet Duct Application at a Gas Turbine Facility

February 6, 2024

Fabric Expansion Joint for an Inlet Volute Duct Application at a Gas Turbine Facility

 Type:  Fabric Expansion Joint
 Size:  143″ long x 61″ wide x 12″ face-to-face
 Material:  PTFE Fiberglass Reinforced Fabric Belt & 304 Stainless Steel
 Design:  -20°F to 600°F , +/- 100″ water column, 0.5″ Axial & 1″ Lateral
 Testing:  Dye-Penetrant

U.S. Bellows fabricated this rectangular fabric expansion joint for an inlet duct application at a gas turbine facility. The unit is 143″ long x 61″ wide x 12″ face-to-face. The fabric belt is made from reinforced PTFE fiberglass and the frame and liner from 304 stainless steel. It is designed for an operating temperature ranging from -20°F to 600°F with a pressure of +/- 100″ water column, with 0.5″ of axial compression and 1″ of lateral deflection. A dye-penetrant examination was performed on all the structural frame welds prior to shipment.

Fabric expansion joints are used in a wide array of applications playing a crucial role in preventing damage to equipment, ensuring system reliability, and maintaining overall safety in industrial processes. Some examples of where they are used are:

    • Cement plants for ducts and exhaust systems associated with high temperature operations.

 

    • Mining industry for mineral and material handling including smelting.

 

    • HVAC systems for duct work to address any thermal movements or vibrations.

 

    • Marine and shipbuilding applications where exhaust systems, engine piping and other critical areas movement and vibrations must be managed.

 

    • Renewable energy facilities such a waste to energy or bioenergy plants in which the incineration operations are critical.

 

    • Paper and Pulp mills for ducting systems in drying and paper manufacturing processes.

 

    • Steel Mills for blast furnace systems and exhausting ducts

 

    • Chemical plants to handle dynamic forces associated with chemical reactions, temperature variations and corrosive environments.

 

  • Power plants: Fossil Fuel and Nuclear plants to manage vibrations and thermal axial expansion that could stress components and fixed equipment.

PT&P REF. ORIGINAL POST 06252018

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Fabric Expansion Joint Designed for a High-Temperature Duct Application

August 8, 2023

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

Fabric pipe expansion joints are often used in ducts that carry hot gasses at low pressures. The major design parameters are the temperatures and flow rates of the gasses and the amount and abrasiveness of solids suspended in the gasses. This fabric expansion joint utilizes a bulky flexible material, also called an Insulation Pillow, to shield against high temperatures protecting the belting material. Refractory is also used in the construction of this joint but is designed so that it does not interfere with movement. Our experienced engineers know that every element of this expansion joint plays a role in its rating for certain temperatures and the number of hours of operation. View Fabric Expansion Joints Product Section.
Fabric expansion joints are key in the systems supporting power and refining plants focused around renewable carbon-neutral product offerings. We have worked with the new entrants in the marketplace but also helped our long-term clients transition their older fossil fuel-based assets to green technology. These plants include biochar from biomass processing, carbon black, clean hydrogen, styrene, and cement.

PT&P REF. ORIGINAL POST 03182020

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Rectangular Fabric Expansion Joint for a Heat Recovery System at a Cement Plant

March 15, 2022

Ptp fabric expansion joint 147379

U.S. Bellows, Inc. designed and fabricated this rectangular fabric expansion joint for a heat recovery system at a cement plant in Indiana. The unit was fabricated with a high-temperature PTFE fabric belt and carbon steel frame. The dimensions are 197″ in length, 118″ in width, and 18″ face-to-face. The expansion joint is designed for an operating temperature of -20°-400°F at +/- 60″ water column and 1″ of axial compression and lateral offset. A dye-penetrant exam was performed on all welds before shipment.

Fabric expansion joints are often used in ducts that carry hot gases at low pressures. The major design parameters are the temperatures and flow rates of the gases and the amount and abrasiveness of solids suspended in the gases. Rectangular fabric expansion joints are also used in power plant ducting that requires joints from the boiler or economizer outlet to the chimney.

Also, they can be used on ducting to the coal pulverizers and the furnace-air inlets. Combustion turbines will also use these types of joints in exhaust and heat-recovery ducts. The primary duct movement this type of joint absorbs is axial expansion and contraction due to temperature changes. The expansion joint designer can also design for lateral and angular movements. Elastomers and Plastomers are the basic flexible materials used to construct the belting material for these joints. These sheets can be used in combination with woven glass, metal wire, fluoroelastomers, insulation, and other materials for use in applications where there may be abrasive material, condensate, acids, and other particles that could reduce the expected life of the joint. Our experienced engineers are also skilled in the various methods and fasteners to connect the belting material to the metal frames of the expansion joint.

This expansion joint was designed for a cement plant for one of the largest building material manufacturers worldwide. Such facilities make products ranging from fly ash, slag, masonry, white, specialty and oil well cements for use in commercial construction, residential construction, and industrial applications.

 

USB REF. ORIGINAL POST 03132017

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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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153″ Neoprene Expansion Joint for an Air Re-circulation/Ventilation Application at a Gas Turbine Facility in Hungary

April 9, 2018

153" Neoprene Expansion Joint for an Air Recirculation/Ventilation Application at a Gas Turbine Facility in Hungary

Type: Neoprene Expansion Joint
Size: 153″ x 55″ x 21″
Design: EPDM Reinforced Fabric Cloth | Carbon Steel
Material: 200°F, +/- 100″ WC, & 1″ Axial
Testing: Hydro-tested

This EPDM neoprene expansion joint was designed for an air recirculation/ventilation application at a gas turbine facility in Hungary by U.S. Bellows. The unit is 153″ in length x 55″ width x 21″ face-to-face. The fabric belt is made from EPDM reinforced fabric cloth and the framework from A572 Gr. 50 carbon steel. It is designed for an operating temperature up to 200°F with a +/- 100″ water column and 1″ of axial compression and lateral deflection. The expansion joint was hydro-tested prior to shipment.

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Custom Designed Fabric Expansion Joint for a Gas and Water Vapor Application

December 5, 2016

Custom Designed Fabric Expansion Joint for a Gas and Water Vapor Application

 Type:  Fabric Expansion Joint
 Size:  83″ diameter / 20″ face-to-face
 Material:  PTFE Fabric Belt / 304 Stainless Steel
 Design:  500°-1500°F at +/-2″ water column & 1 1/2″-6 1/2″ axial compression
 Testing:  100% Dye-Penetrant

U.S. Bellows custom engineered this fabric expansion joint for a gas and water vapor application at a rotating dryer facility. It is fabricated from a 3-layer PTFE belt with a 304 stainless steel frame and 2205 duplex framing. The unit is 83″ in diameter and 20″ face-to-face. The expansion joint is designed for an operating temperature ranging from 500°-1500°F at a +/- 2″ water column pressure and 1 1/2″-6 1/2″ of axial compression. A 100% dye-penetrant examination was conducted on the unit prior to shipment.

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Rectangular Fabric Expansion Joint for a Ventilation Air Filter System at a Gas Turbine Facility

October 17, 2016

Rectangular Fabric Expansion Joint for a Ventilation Air Filter System at a Gas Turbine Facility

 Type:  Rectangular Fabric Expansion Joint
 Size:  153″ long x 55″ wide x 21″ face-to-face
 Material:  PTFE fiber glass reinforced / A572 Gr.50 high strength steel frame & liner
 Design:  -20°F to +200°F at +/- 100″ water column
 Testing:  100% Dye-Penetrant

U.S. Bellows designed this rectangular fabric expansion joint for a ventilation air filter system at a gas turbine facility. The dimensions for the expansion joint are 153″ long x 55″ wide x 21″ face-to-face. The fabric belt is made from PTFE fiber glass reinforced, while the frame and liner are fabricated from A572 Gr.50 high strength steel. The expansion joint is designed for -20°F to +200°F at +/- 100″ water column. A dye penetrant examination on the welds was preformed prior to shipment.

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Fabric Expansion Joint Designed for a Natural Gas Application in a Gas Turbine

October 3, 2016

Fabric Expansion Joint Designed for a Natural Gas Application in a Gas Turbine

Type: Rectangular Fabric Expansion Joint
Size: 136″ x 45″ x 12″
Material: PTFE Fiberglass Reinforced Fabric Belt / 304 Stainless Steel
Design -20°F to 650°F at a +/- 100″ water column
Testing: 100% Dye-Penetrant

 

U.S. Bellows fabricated this rectangular fabric expansion joint for a natural gas application at a gas turbine facility. The fabric belt is made from PTFE fiberglass reinforced and the frame and liner from 304 stainless steel. The unit is 136″ long x 45″ wide x 12″ face-to-face. It is designed for an operating temperature ranging from -20°F to 650°F with a pressure of +/- 100″ water column. A dye penetrant examination was performed on all welds prior to shipment.

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153″ Fabric Expansion Joint for a Gas Turbine Facility

August 17, 2015

153" Fabric Expansion Joint for a Gas Turbine Facility
U.S. Bellows designed this fabric expansion joint for a gas turbine application. The dimensions for the expansion joint are 153” x 55” x 21”. The fabric belt is made from reinforced neoprene, while the frame and liner are fabricated from A572 Gr.50 carbon steel. The expansion joint is designed for -20°F/+200°F at +/- 100″ water column. A 100% dye-penetrant examination on the welds was preformed prior to shipment.

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44″ Dia. Fabric Expansion Joints Designed for a Chemical Plant

April 4, 2015

44" Dia. Fabric Expansion Joints Designed for a Chemical Plant
These fabric expansion joints were fabricated from stainless steel pipe and flanges with a three layer fabric belt protected by an insulation pillow. Each joint is 44″ ID x 40″ face-to-face and designed for 3 PSIG at 845°F. The expansion joints are designed for a lateral movement of 1/2″ and an angular rotation of 1.5°. Stainless steel covers were included to protect the fabric expansion element from possible outside damage.

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20′ Rectangular Fabric Expansion Joint Custom Designed for a Plant in Louisiana

June 29, 2013

126956a1
U.S. Bellows designed a 20″ x 13″ rectangular fabric expansion joint for a plant in Louisiana. This unit was custom designed to improve the current design by eliminating the need for insulation. The fabric belt consists of five layers and the frame is fabricated from 321 stainless steel. The expansion joint is designed for 1-7/8″ lateral movement at 1350°F and ± 10 psig and was 100% dye-penetrant tested prior to shipment.

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Fabric Expansion Joints Custom Designed for an Offshore Oil Extraction and Natural Gas Project

October 20, 2012

112416v2a1
These fabric expansion joints were custom designed for offshore oil extraction and natural gas project. They are 105″ dia. x 24″ O.A.L. 309 stainless steel was used for the duct, 310 for the liners, 316 for the covers, 321 for the studs, 309 for the flanges. The fabric belt was a three-layer belt with an inner layer of glass cloth, a layer of Kaowool, and an outside layer of reinforced PTFE. The expansion joints were designed for 1 psig at a temperature of 1100°F. They are designed for 4″ axial compression, a 1″ extension, and a 0.5″ lateral offset. All welds were 100% dye-penetrant examined prior to shipment.

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81″ Long Rectangular Fabric Expansion Joint for an Offshore Oil Extraction and Natural Gas Project

February 21, 2012

112416a1
A total of three rectangular fabric expansion joints and six round fabric expansion joints were custom designed for an offshore oil extraction and natural gas project. The rectangular joints are 56″ x 81″ I.D. x 25″ O.A.L. and the round joints are 105″ dia. x 24″ O.A.L. 309 stainless steel was used for the duct, 310 for the liners, 316 for the covers, 321 for the studs, 309 for the flanges. The fabric belt was a three layer belt with an inner layer of glass cloth, a layer of Kaowool and an outside layer of reinforced PTFE. The expansion joints were designed for 1 psig at a temperature of 1100°F. The rectangular joints were designed for 2″ axial compression, a 1″ extension, and a 1″ lateral offset. The round joints were designed for 4″ axial compression, a 1″ extension, and a 0.5″ lateral offset. All welds were 100% dye-penetrant examined prior to shipment.

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Rectangular Fabric Expansion Joint For High Air Circulation Flow

January 9, 2012

114196a1
This rectangular fabric expansion joint is designed for high air circulation flow for an air cooling loop duct in a power plant. It measures 81″ L x 18″ W x 16″ face-to-face, and is fabricated with stainless steel angle, frame ends and internal liner. The fabric belt material is reinforced silicone fabric cloth, which can withstand temperatures up to 550°F. This expansion joint is rated for axial movement of +/- 1″ with a 1/2″ lateral offset. A 100% dye-penetrant test on all welds was conducted prior to a quality assurance inspection prior to shipment.

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High Temperature Fabric Expansion Joint Designed for an Exhaust Duct

November 28, 2011

113108v2a1
This rectangular fabric expansion joint will be used in an exhaust duct in a power plant. It measures 136″ L x 54″ W x 12″ face-to-face and is fabricated with stainless steel angle, frame ends, and internal liner. The fabric belt material is PTFE coated glass cloth, which is low friction and high in tear/crease resistance and tensile strength. This expansion joint is rated for an axial movement of 1-1/2″ with a lateral offset of 1/2″ and maximum temperatures up to 600°F. A quality inspection was administered, including a 100% dye-penetrant test prior to shipment.

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

September 12, 2011

113108v1a1
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 100% dye-penetrant exam was performed on the welds of the angle iron flanges prior to shipping to the customer ahead of schedule.

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78″ Fabric Expansion Joint and Duct Work Assembly with a 90° Elbow for a Sulphuric Acid Plant

April 11, 2011

78" Fabric Expansion Joint and Duct Work Assembly with 90° Elbow for a Sulphuric Acid Plant

U.S. Bellows designed and fabricated a 78″ fabric expansion joint and duct work assembly with a 90° elbow for a sulphuric acid plant in Louisiana. A stress analysis was performed to determine thermal movements and spring supports, loads and travel.

109055b2

The ducts are fabricated from carbon steel and are 30″ long. The expansion joint is designed for 750°F at 5 PSIG with 2.5″ lateral deflection (cold preset) and 2″ axial compression. Cradle supports and a “big ton” spring support were also fabricated for this project.

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Air Duct Fabric Expansion Joint for a Power Plant

December 1, 2009

103086a1
This air duct fabric expansion joint has a unique design that allows for lateral movement of 2″ in any direction. It will be used in an air duct system as a transition piece between the air blower and the air duct. This expansion joint is fabricated with Alpha 827 fabric cloth and A36 carbon steel flanges and has a design temperature of 300&def;F at .1 PSIG. The top flange measures 68-5/8″ L x 57-5/8″ W, and the bottom flange measures 53-5/8″ L x 64-5/8″ W.

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Fabricated Rectangular Fabric Expansion Joints

April 17, 2008

96839a1

96839b1

This fabric expansion joints‘ frame and liner are fabricated from 304 stainless steel. The three-layer fabric belt consists of an inner layer of silica cloth, a middle layer of mineral wool, and an outer layer of PTFE/coated fiberglass. The dye-penetrant examination was performed on all welds of the expansion joint’s frame prior to shipping.

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