Blog Guides & Technical Articles

Dual Gimbal Expansion Joints for a Regeneration Blower Outlet

May 4, 2005

This 3,400 lb. expansion joint is capable of 2.3″ lateral movement and 1.5″ axial movement and was designed for 65 PSIG and 1076ºF. It was made with SB-409 alloy 800 bellows and 316H piping and gimbal components. The dimension of this expansion joint is 24″ x 168″ x 71″. This gimbal expansion joint contains two sets of hinge pins or pivots with the axis of each set perpendicular to each other. To ensure the quality of the product, the joints were 100% X-rayed and hydro-tested at 120 PSIG prior to delivery.

3″ Diameter Universal Expansion Joints for a Power Plant Project in South Carolina

April 1, 2005

US Bellows custom-designed and manufactured three 3″ diameter and 36″ long universal expansion joints for a power plant project in South Carolina. These expansion joints, fabricated from 2-ply A240-304H stainless steel bellows, are designed to withstand 170 PSIG and 1200°F per EJMA specifications.

U.S. Bellows, Inc. Designed and Fabricated Fabric Expansion Joints for a Power System Company in Texas

January 28, 2005

Expansion Joint Ready for Inspection

U.S. Bellows, Inc. recently custom designed and fabricated 17 rectangular fabric expansion joints for a power system company in Texas. The expansion joints measure 54″ x 136″ and weigh 135 lb. each. They are designed for operation up to 5 PSIG and temperatures up to 400°F. The expansion joints are made of fiberglass fabric and have stainless steel frames

Fabric Expansion Joints for Power System Company in Texas

December 3, 2004

US Bellows recently custom-designed and fabricated five fabric expansion joints for a power system company in Texas. The expansion joints range in size from 30″ to 62″ in diameter, and the rectangular expansion joints measure 81″ x 18″ and 136″ x 54″. They are designed to operate from 0.8 to 5 PSIG and in temperatures ranging from -40˚F to 400˚F. The products were fabricated using Neoprene and fiberglass fabric with carbon and stainless steel frames. A special paint system was applied per the customer’s request. Additionally, the products were manufactured according to the customer’s specific quality specifications.

42″ I.D. Rubber Expansion Joints for Power Plant in Texas

September 23, 2004

Expjt 00466 rubbera — 42″ Dia. Rubber Expansion Joints for a Power Plant

U.S. Bellows, Inc. designed and fabricated a 42″ I.D. rubber expansion joint for a power plant in Texas. The expansion joint consists of a bellow formed by 1/8″ thick neoprene sheet and A36 carbon steel flanges coated with a special finish per customer’s request. To ensure quality, dye-pentrant testing was performed on the welds prior to shipping.

48″ Diameter Tied Universal Expansion Joints for an Oil and Gas Company in France

August 27, 2004

U.S. Bellows, Inc. recently designed and manufactured five tied universal expansion joints ranging in size from 30 to 48 for an oil and gas company in France. These expansion joints weigh between 2400 lb. and 3200 lb. and are fabricated from 304-321 SS bellows. They are designed for pressures ranging from 55 to 650 PSIG and 148°F to 300°F operating temperatures. To ensure quality, the joints were 100% X-Rayed, 100% dye-penetrant, and hydro-tested at 83 to 975 PSIG.

57″ x 96″ Rectangular Seal Expansion Joints for a Chemical Refinery in TX

July 2, 2004

U.S. Bellows, Inc. recently fabricated four rectangular primary flexible seal joints for sliding flanged connections. Designed at 2 PSIG for 1350°F, the seal joints provide for one inch of axial movement to prevent damage to flange connections. EJMA Standards and B31.3 code were used in the design and fabrication of these joints. The purpose of the rectangular seal expansion joint is to prevent leakage to the outside of the Burney Windbox. The corners are double mitered to reduce stress. Inconel® 625LCF material was used in fabricating the bellows while A240 tp 310 material was used for the frame. An air test at 5 PSIG was implemented as well as dye-penetrant test to ensure product quality.

60″ Diameter Tied Refractory Lined Universal Expansion Joints for a Chemical Refinery in Texas

June 11, 2004

60" Diameter Tied Refractory Lined Universal Expansion Joints for a Chemical Refinery in TX — 60″ diameter Tied Refractory Lined Universal Expansion Joints for a Chemical Refinery in TX

U.S. Bellows, Inc. recently fabricated 60 dia. refractory lined universal expansion joints for a carbon monoxide ducting system at a chemical refinery. The expansion joints are lined with a 3/4″ thick abrasion resistant refractory lining with hexagonal mesh reinforced anchor. A240 TP 304 material was used to fabricate the bellows and flanges and A240 TP 310 material was used for the spool. Designed for 2 PSIG, the joints were air tested at 5 PSIG to ensure quality performance. A dye-penetrant test was also implemented on the bellows’ long seam and attachment welds. These expansion joints were fabricated and designed per B31.3 and EJMA standards.

3,212 lb. Tied Universal Joint for an Oil Piping System Application

May 14, 2004

US Bellows custom designed and manufactured a 5″ nominal diameter and 60″ long universal expansion joint for an oil piping system application in Nevada. This expansion joint consists of high-strength Inconel® 625LCF bellows and A105 flanges. The expansion joint is designed for 1400 PSIG and 120°F per B 31.3, and the latest revision of EJMA standards. It is also designed to allow 4 1/2″ of lateral movement during operation. A 100% dye-penetrant and hydro-test at 2100 PSIG was performed prior to shipment to ensure quality.

U.S. Bellows, Inc. Custom Designs and Fabricates a 60 dia. Double Hinged Refractory Lined Expansion Joint for a Chemical Refinery in Michigan

February 27, 2004

	$60″ diameter Double Hinged Refractory Lined Expansion Joint for a Chemical Refinery in Michigan$
Expansion joint assembly during fabrication	Expansion joint assembly ready for shipment

U.S. Bellows, Inc. specially designed and manufactured a double hinged refractory lined expansion joint for a chemical refinery in Michigan. This expansion joint with an overall length of 40′-0″ has a 4″ thick refractory lining installed per UOP specifications. It also consists of testable two plies SB-443/Inco 625LCF bellows, 5/8″ thick, A516-70 mitered elbows, 5/8″ thick, A516-70 spool, A240-304 liners, A516-70 hinges, A193, GR 7 tie rods, and A516-70 lugs.

This expansion joint is designed for 50 PSIG and 1440°F with 3″ of lateral movement per B31.3 and EJMA standards. To ensure quality, 100% X-Ray and 100% dye-penetration tests were performed on the bellows after forming. A pneumatic test at 75 PSIG was conducted on the expansion joint assembly prior to shipping.

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Dual Gimbal Expansion Joints for a Regeneration Blower Outlet

3″ Diameter Universal Expansion Joints for a Power Plant Project in South Carolina

U.S. Bellows, Inc. Designed and Fabricated Fabric Expansion Joints for a Power System Company in Texas

Fabric Expansion Joints for Power System Company in Texas

42″ I.D. Rubber Expansion Joints for Power Plant in Texas

48″ Diameter Tied Universal Expansion Joints for an Oil and Gas Company in France

57″ x 96″ Rectangular Seal Expansion Joints for a Chemical Refinery in TX

60″ Diameter Tied Refractory Lined Universal Expansion Joints for a Chemical Refinery in Texas

3,212 lb. Tied Universal Joint for an Oil Piping System Application

U.S. Bellows, Inc. Custom Designs and Fabricates a 60 dia. Double Hinged Refractory Lined Expansion Joint for a Chemical Refinery in Michigan

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