Featured Product Archives

In-line Pressure Balanced Expansion Joints for Waste Water Treatment Plant

January 2, 2017

Type:	In-line Pressure Balanced Expansion Joint
Size:	12″ in diameter and 32″ in overall length
Design:	304 Stainless Steel
Material:	200°F at 55 PSIG, with 7/8″ of axil compression and .07″ of lateral movement
Testing:	100% dye-penetrant, PMI, X-Ray, and hydro tested

These inline pressure balanced expansion joints were custom-designed by US Bellows for a wastewater treatment plant in California. The units are 12″ in diameter and 32″ in overall length. All components of the expansion joints (bellows, covers, liners, rings, and flanges) were completely fabricated from 304 stainless steel. They are designed for an operating temperature 200°F at 55 PSIG, with 7/8″ of axial compression and .07″ of lateral movement. All units were 100% dye-penetrant, PMI, X-Ray, and hydro-tested prior to shipment.

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

December 5, 2016

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.

60″ Dia. Elbow Pressure Balanced Expansion Joint for a Power Plant in California

November 14, 2016

Type:	Elbow Pressure Balanced Expansion Joint
Size:	111″ x 115″ x 60″
Material:	Incoloy 625 / Carbon Steel
Design:	350°F at 15 psig with 1/2″ of axial compression and 1/4″ of lateral deflection
Testing:	Hydrotest

This 60″ elbow pressure balanced expansion joint was custom designed by U.S. Bellows for a power plant in California. The bellows are fabricated from Inconel 625 LCF while the remainder of the expansion joint from carbon steel. It is designed for an operating temperature of 350°F at 15 psig with 1/2″ of axial compression and 1/4″ of lateral deflection. The unit was hydrotested prior to shipment.

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

October 3, 2016

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.

Single Expansion Joints Custom Designed for a Power Generation Application

September 20, 2016

Type: Single Tied Expansion Joint

Size: 4” in diameter by 9-3/4;” in OAL, to 8” in diameter by 10-7/8” in OAL

Material: 304 Stainless Steel Bellows / Carbon Steel

Design: 400°F at 400 psig

Testing: hydro-tested at 600 psig

U.S. Bellows custom designed these single tied expansion joints for a power generation application in Virginia. The expansion joints vary in size from 4” in diameter by 9-3/4” in OAL, to 8” in diameter by 10-7/8” in OAL. The bellows are fabricated from 304 stainless steel and the rest of the components from carbon steel. The expansion joints are designed for 400°F at 400 psig and are capable of 0.39” of lateral movement. A hydro-test at 600 psig was performed on the units prior to shipment

9′ Rectangular Metallic Expansion Joint Designed for a Gas Turbine Facility

September 6, 2016

Type:	Rectangular Expansion Joint
Size:	106″ x 72″ x 15″
Design:	310 Stainless Steel Bellows / Carbon Steel
Material:	-20 – 1000°F / +/- 5″ water column
Testing:	100% dye-penetrant tested

US Bellows designed this rectangular expansion joint for a gas turbine facility in California. It was custom-designed with one 6″ x 6″ square convolution. The dimensions of this unit were 106″ x 72″ x 15″. The bellows were fabricated from 310 stainless steel, and the frame from carbon steel. It is designed for an operating temperature from -20°F to +1,000°F at +/- 5″ water column. The unit was 100% dye-penetrant tested prior to shipment.

Externally Pressurized Expansion Joints Designed for a Hot Water Piping System at an Air Force Facility

August 15, 2016

Type:	Externally Pressurized Expansion Joints
Size:	4″ Diameter / Single: 50″ and double: 87″ Face-to-Face
Design:	Inconel 625 Bellows / Carbon Steel
Material:	400°F / 400 psig
Testing:	Hydro-tested at 600 psig

These single externally pressurized expansion joints were custom designed by U.S. Bellows for a hot water piping system at an Air Force facility in California. All units are 4″ in diameter, with the single units having a length of 50″ face-to-face and double units having a length of 87″ face-to-face. The expansion joint’s bellows were fabricated from Inconel 625 and all other components from carbon steel. They are designed for a temperature of 400°F at 400 psig with 4″ and 8″ of axial compression. All units were hydro-tested at 600 psig prior to shipment.

US Bellows Designed Thick Wall Flanged and Flued Head Expansion Joints for Sulfuric Acid Plant

July 28, 2016

US Bellows custom designed and fabricated thick-wall flanged and flued head expansion joints for a sulfuric acid plant in Chicago, IL. The units will be used for a chemical furnace and converter project. The expansion joints vary in size from 36″ to 70″ in diameter. The units were fabricated from 304 stainless steel in 1022° F temperatures, with an operating pressure of 93° H2O water column. All welds were dye penetrant, and soap and air tested prior to shipment.

Hinged Expansion Joints Designed for a Pipeline in Mexico

July 18, 2016

142087a1

U.S. Bellows designed single hinged expansion joints for a pipeline in Mexico. They are 12″ in diameter and 12″ in length. The bellows were fabricated from 304 stainless steel, and the flanges and hinge hardware from carbon steel. The expansion joints are designed for an operating pressure of 150 psig at 150°F, and rated for 5° of angular movement. All units were 100% dye-penetrant and hydro-tested per ASME B31-3 prior to shipment.

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

July 5, 2016

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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In-line Pressure Balanced Expansion Joints for Waste Water Treatment Plant

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

60″ Dia. Elbow Pressure Balanced Expansion Joint for a Power Plant in California

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

Single Expansion Joints Custom Designed for a Power Generation Application

9′ Rectangular Metallic Expansion Joint Designed for a Gas Turbine Facility

Externally Pressurized Expansion Joints Designed for a Hot Water Piping System at an Air Force Facility

US Bellows Designed Thick Wall Flanged and Flued Head Expansion Joints for Sulfuric Acid Plant

Hinged Expansion Joints Designed for a Pipeline in Mexico

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

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