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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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66″ Custom Designed Hinged Expansion Joint for a Chemical Plant in Saudi Arabia

August 19, 2019

Usbellows hinged expansion joint 150651

Type: Hinged Expansion Joints
Size: 66″ Diameter | 39 3/8″ OAL
Material: Incoloy 825 | 321 Stainless Steel
Design 986°F Operating Temp. @ 73 psig | 4.25° Angular
Testing: 100% Dye-Penetrant | X-Ray | Hydro-tested

This single hinged expansion joint was custom designed for a chemical plant in Saudi Arabia. The bellows were fabricated from Incoloy 825 and the cover, weld-ends, hinges, and liner from 321 stainless steel. The unit is 66″ in diameter and 39 3/8″ OAL. It is designed for an operating temperature of 986°F at 73 psig and 4.25° of angular rotation. The expansion joint was 100% dye-penetrant tested, the bellows and pipe longitudinal seam were x-ray tested and hydro-tested prior to shipment.

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Refurbishment on a 72 Year Old Hinged Expansion Joint

August 13, 2018

Hinged expansion joint 166169

Type: Single Hinged Expansion Joint
Size: 26-3/4″ length x 42-1/2″ diameter
Material: CS | 304 SS | Inconel 625 LCF | Kaowool
Design Operating Temperature: 1,100°F
Pressure: 100 PSIG
Movement: 3° of Angular Rotation
Testing: Hydrotest at 100 PSIG

U.S. Bellows, Inc. refurbished a 72 year old single hinged expansion joint for a refinery in Louisiana. The expansion joint is 42-1/2″ in diameter and 25-3/4″ in length. The bellows are fabricated from Inconel 625 LCF, the liners are 304H stainless steel, the body is carbon steel and the insulation is Kaowool. The unit is designed for an operating pressure of 100 psig at 1,100°F and 3° angular rotation. A hydro test at 100 psig was conducted prior to shipping the unit after one week.

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11 Foot Diameter Hinged Expansion Joints Designed for Vacuum Service in an Air-Cooled Condenser Unit in New York

July 30, 2018

Hinged expansion joint 152499

Type: Single Hinged Expansion Joints
Size: 64″ length x 127″ diameter
Material: Carbon Steel and 304 Stainless Steel
Design Operating Temperature Range: -10°F to 121°F
Pressure: 15 PSIG
Movement: 0.6° of Angular Rotation
Testing: 100% Dye Penetrant Test | Vaccum tested at 28.5″ of Mercury | 100% X-Rayed.

U.S. Bellows custom designed Single Hinged Expansion Joints for vacuum service in high-velocity steam and condensate duct for an air-cooled condenser unit in New York. The bellows are fabricated from a 304 stainless steel. The weld-ends and hardware are fabricated from carbon steel. The units are 127″ in diameter and 64″ overall length. They are designed for an operating pressure at full vacuum to 15 psi at -10 to 121°F and 0.6° of angular rotation. The units were vacuum tested at 28.5″ of mercury, 100% dye-penetrant examined, and the bellows longitudinal seams were 100% X-rayed.

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Custom Universal Hinged Expansion Joint Completed in less than 12 weeks for a Refinery in Texas

December 4, 2017

152767a1

Type: Universal Hinged Expansion Joint
Size: 86″ Height, 234″ Long, & 42″ OD
Material: Inconel 625/Chrome-Moly/Carbon Steel
Design 1025°F at 45 psig, 3/4″ of Axial, & 12.5″ of lateral
Testing: 100% Radiographic Examined, Pneumatic Tested at 61 psi, Leak Tested at 51 psig, & Dye-Penetrant

U.S. Bellows custom fabricated this universal hinged expansion joint with oversized bellows, movement indicators, and test ports, in less than 12 weeks for a refinery turnaround in Texas. The unit is 86″ in height, 234″ long, and has a 42″ OD. The bellows were fabricated from Inconel 625, the piping from chrome-moly, the hinge hardware from carbon steel, and the covers from 304 stainless steel. It is designed for an operating temperature of 1025°F at 45 psig, with 3/4″ of axial compression and 12.5″ of lateral deflection. The unit was post-weld heat treatment and 100% radiographic examined the circumferential and long seams after the post-weld heat treatment, plus pneumatically tested at 61 psi, the bellows were leak tested to 15 psig between the plies, and dye-penetrant tested prior to shipment.

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110″ Custom Hinged Expansion Joint for a Combined Cycle Power Plant in Texas

May 15, 2017

140674a1

Type: Hinged Expansion Joints
Size: 110″ diameter and 39 3/8″ OAL
Material: 321 Stainless Steel and Carbon Steel
Design 250°F at 7.25 psig/FV and +/- 3° angulation
Testing: Dye-penetrant and high vacuum (70 mbar) tested

U.S. Bellows custom-designed this hinged expansion joint for a combined cycle power plant in Texas. This expansion joint is one of 11 units constructed and has a nominal diameter of 110″ with an overall length of 39 3/8″. The bellows are fabricated from 321 stainless steel with a carbon steel weld ends, cover, and hinges. This hinged joint is part of a condenser duct complex that is designed to operate at 250°F at 7.25 psig/FV, with +/- 3° angulation. All expansion joint welds were 100% dye-penetrant tested and high vacuum (70 mbar) tested prior to shipment.

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66″ Diameter Hinged Expansion Joints Designed for a Chemical Plant (PT&P Ref#132483)

October 31, 2016

132483a1

Type: Hinged Expansion Joint
Size: 66″ in diameter and 39-3/8″ OAL
Material: Incoloy 825 / 321 stainless steel
Design 73 psig at 986°F with 4.25 degrees of angular rotation
Testing: Dye Penetrant, X-Ray, PMI, Hydrotest

These single hinged expansion joints were custom designed by U.S. Bellows for a chemical plant in Saudi Arabia. The units are 66″ in diameter and 39-3/8″ OAL. The bellows are fabricated from Incoloy 825 with the weld ends, hinges, liner, and cover from 321 stainless steel. The expansion joints are designed for an operating pressure of 73 psig at 986°F with 4.25 degrees of angular rotation. All units were dye-penetrant tested, X-ray tested on all bellows and pipe longitudinal weld seams, PMI tested on all alloy components, and the alloy steel plate for the pipe was ultrasonic tested prior to shipment.

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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.

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30″ Dia. Hinged Expansion Joints Designed for a Pipeline in Mexico

February 16, 2016

141772a1

 

U.S. Bellows designed this hinged expansion joint for a pipeline in Mexico. It is 30″ in diameter and 18″ in length. The bellows are fabricated from 304 stainless steel, and the remainder of the assembly is carbon steel. The expansion joint is designed for an operating pressure of 25 psig at 986°F, with an angular movement of 4.5°. All units in this project were 100% dye-penetrant and hydro-tested prior to shipment.

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42″ Dia. Hinged Universal Expansion Joint Designed with Pantographic Linkage

August 4, 2014

129524v2a1

 

This 42″ dia. hinged universal expansion joint was designed with pantographic linkage flue gas application in a Columbian refinery. The redundant two-ply testable bellows are fabricated from Inconel 625 LCF and the remainder of the assembly was fabricated with refractory lined carbon steel. It is designed for an axial movement of 1.1″ at 1,000°F and 50 psig. All welds were 100% dye penetrant examined, the bellows longitudinal seam and pipe seams were 100% X-ray examined. The complete assembly was pneumatically tested to 50 psig due to the internal insulation. All the pressure bearing components such as the hinge plates, pantrographic linkage, gimbal ring and hinge support rings were designed and engineered per latest EJMA, ASME B31.3 codes

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Single Hinged Expansion Joints Custom Designed for a Chemical Plant

January 4, 2014

129830a1

 

Twenty-four single hinged expansion joint were custom designed for a chemical plant. Eight are 16″ dia., four are 12″ dia., twelve are 6″ dia., and they range in length from 14″ to 16″. The bellows are fabricated from 304 stainless steel and the rest is carbon steel. The 16″ dia. joints are designed for 2° angular movement at 300°F and 150 psig. The 12″ dia. joints are designed for 1 deg. Angular movement at 300°F and 400 psig. The 6″ dia. joints are designed for 1° angular movement at 300°F and 650 psig. All expansion joints were dye penetrant examined and hydro-tested prior to shipment

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59″ Dia. Single Hinged Expansion Joint Refurbished in Two Weeks

June 3, 2013

125538a1

 

Within a two week deadline, U.S. Bellows refurbished a 59-1/4″ diameter single hinged expansion joint for a refinery in Louisiana. The expansion joint is 119-3/4″ in overall length and designed for .82″ angular rotation at 1380°F and 35 psig. The bellows are fabricated from Inconel 625 LCF, and the entire assembly is 304H stainless steel. Before shipment, the bellows were x-rayed and the assembly was 100% dye penetrant and air tested to 52 psig.

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102″ Dia. Single Hinged Expansion Joint and Duct Work Assembly and Two 92″ Single Expansion Joints

February 4, 2013
119426b1

119426a1

U.S. Bellows designed a 102″ dia. single hinged expansion joint and duct work assembly, along with two 92″ single expansion joints for a coal gasification facility in Mississippi. Both the assembly and expansion joints were fabricated from carbon steel with 304 stainless steel bellows, and designed for 3.6° angular movement at 825°F and 3 psig. The expansion joints were dye penetrant examined, 100% x-rayed and soap and air tested prior to shipment.

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102″ Dia. Tied Universal and Hinged Expansion Joints

March 12, 2012

102" Dia. Tied Universal and Hinged Expansion Joints
102" Dia. Tied Universal and Hinged Expansion Joints

Type:  Single Expansion Joint
Size:  102″ diameter, 225″ long, 102″ diameter, 71″ long
Material:  carbon steel with 316 stainless
Design  8.2″ lateral movement, 0.76° angular rotation, 250°F at 7.25 psig
Testing:  100% X-Rayed | Dye-penetrant | Soap/Air-tested

U.S. Bellows designed and fabricated tied universal expansion joints and single hinged expansion joints for a power plant in Canada. All the units were fabricated from carbon steel with 316 stainless steel bellows. The universal tied joints are 102″ diameter, 225″ long and are designed for 8.2″ lateral movement. The hinged joints are 102″ diameter, 71″ long and designed for 0.76° angular rotation. Each expansion joint can withstand temperatures up to 250°F at 7.25 psig. The bellows and pipe long seams were 100% x-rayed, and all the welds were 100% dye penetrant tested. A soap and air test were performed prior to shipment.

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92″ Double Hinged Reinforced Expansion Joint for Water Service in Canada

April 25, 2011

110901a1

 

U.S. Bellows, Inc. designed a double hinged reinforced expansion joint for a 92″ diameter pipe in a water treatment plant located in Canada. The bellows, root rings and collars are fabricated from 321 stainless steel. The weld ends and hinge hardware are fabricated from carbon steel. This expansion joint was designed for 100 PSIG at 300°F with 4° angular movement for each bellows. The bellows long seams and longitudinal pipe welds were 100% x-ray examined, and a hydro-test at 150 PSIG, along with a 100% dye penetrant test for all welds was performed prior to shipment.

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66″ Hinged Expansion Joint Designed for Gas Service in a Sulphuric Acid Plant

February 8, 2011

111055a1

 

This single hinged expansion joint is designed for sulphur dioxide service in a sulphuric acid plant. It was fabricated with 321 stainless steel bellows and liner, and A-516 GR 70 carbon steel hinge plates and pipe. The pipe is 66″ outside diameter and 35-1/4″ overall length. The expansion joint was designed for 6° angular and 3 PSIG at 680°F. The bellows and pipe long seams were 100% x-rayed, and all the welds were 100% dye penetrant tested. A soap and air test at 15 PSIG was conducted prior to shipment.

Hinges permit angular rotation in one plane only by the use of a pair of pins through hinge plates attached to the expansion joint ends. Hinges and hinge pins are designed to restrain the thrust of the expansion joint due to internal pressure. Hinges can also be designed to carry piping loads, if specified.

Features of hinged expansion joints include:
– Angular rotation in one plane
– Eliminates pressure thrust forces
– Transmits external loads
– Prevents torsion on bellows
– No main anchors required
– Minimum guiding required
– Low forces on piping system

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U.S. Bellows, Inc., a Division of Piping Technology & Products, Inc., Designed and Fabricated a 24″ Universal Hinged Expansion Joint.

May 27, 2009

102442a1

 

This universal hinged expansion joint includes elbows on both ends for an overall length of 125 5/8″. It is designed with Inconel® 625 bellows, a 304 stainless steel liner, and carbon steel 150 lb. flanges. The hinges allow for up to 5° of angular movement. The longitudinal weld seams were 100% dye-penetrant examined prior to being formed. The expansion joint was hydro-tested at 188 PSIG.

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U.S. Bellows, Inc. Designed and Fabricated 44″ Hinged Expansion Joints with Refractory Lining

May 9, 2007

86076b1

86076a1 U.S. Bellows, Inc. designed and fabricated two 44″ hinged expansion joints with 5″ thick refractory lining. These expansion joints are part of FCC stand-pipes in a synfuels plant. Each expansion joint is fabricated of two-ply Inconel® bellows and 3/4″ wall pipe. The joints consist of 2″ thick attachment rings. After fabrication, the expansion joints were pneumatically tested and inter-plies tested. The bellows and pipes were 100% x-rayed and PMI tested.

Thermal and structural Finite Element Analysis (FEA) was performed on the expansion joints to ensure the product is structurally sound and determining the thermal profile helps to prevent polythionic corrosion on the bellows. Design calculations were performed for all hardware including lug rings, gussets, hinge plates, pins, etc

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48” diameter Refractory Lined Expansion Joint for a Chemical Plant in Ecuador

October 10, 2003
48” dia. Refractory Lined Expansion Joint for a Chemical Plant in Ecuador
48” dia. Refractory Lined Expansion Joint for a Chemical Plant in Ecuador

U.S. Bellows, Inc. designed and fabricated a Refractory Lined Expansion Joint with pentographic linkages for a chemical plant in Ecuador. This expansion joint was designed for 60 PSIG and 1450 °F with a 4” thick refractory installed per UOP specifications. The bellows were constructed from SB-443 Inconel® 625, and the weld ends, hinges, pantographic linkages, and floating ring were made from A516-70.

The bellows, weld ends, and spool long seam welds were 100% X-rayed and 100% dye-penetrant tested per ASME standards. A pneumatic test was performed at 15 PSIG for the entire expansion joint assembly prior to shipping.

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