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36″ Dia. Externally Pressurized Expansion Joints Designed for a Power Plant in Venezuela

October 29, 2018

36” Dia. Externally Pressurized Expansion Joints Designed for a Power Plant in Venezuela

Type: Externally Pressurized Expansion Joints
Size: 36″ I.D. | 56″ OAL | 10″ Face-to-Face
Design: Hastelloy C-276 Bellows | A36 CS Flanges & Spool
Material: 60 PSIG at 572°F | 9.75″ Axial Compression
Testing: 100% Dye-Penetrant | Hydro-Tested

U.S. Bellows custom designed externally pressurized expansion joints for a power plant in Venezuela. The units are 56″ in overall length and have a 36″ inside diameter. The bellows are fabricated from Hastelloy C-276 and the flanges and spool are A36 carbon steel. The units are designed for an operating pressure of 60 psig at 572°F and 9.75″ of axial compression. The expansion joints were 100% dye-penetrant tested and hydro-tested prior to shipment.

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Custom Designed Externally Pressurized Expansion Joints for a Flare Header Application at a Mississippi Refinery

February 19, 2018

Custom Designed Externally Pressurized Expansion Joints for a Flare Header Application in Mississippi

Type: Externally Pressurized Expansion Joint
Size: 133 11/16″ and 120.5″ Long | Both Have 42″ Pipe Dia.
Design: Inconel 625 | Carbon Steel
Material: 450°F at 108 psig & 31″ and 25″ Axial Compression
Testing: Hydro-tested at 167, PMI, 100% X-Ray, and Dye-Penetrant

U.S. Bellows custom designed these externally pressurized expansion joints for a flare header application at a refinery in Mississippi. One unit measures 133 11/16″ long and the other measures 120.5″ long and both have a 42″ pipe diameter. The bellows were fabricated from Inconel 625 with carbon steel pipe per A671-CC-60 CL.22, and 2-coat paint system. They are designed for an operating pressure of 108 psig at 450°F with the 31″ and 25″ of axial compression. All alloy material was PMI inspected. The units were hydro tested at 167 psig, 100% dye-penetrant tested, and the bellows and pipe weld seams were 100% X-ray tested prior to shipment.

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Externally Pressurized Expansion Joints for Pneumatic Conveying and Filtration at a Manufacturing Facility in Missouri

September 18, 2017

Externally Pressurized Expansion Joints for Pneumatic Conveying and Filtration at a Manufacturing Facility in Missouri

Type: Externally Pressurized Expansion Joints
Size: 4″ Diameter & 57″ Length
Design: 304 Stainless Steel
Material: 500°F at 30 psig, 189 lb./in. Spring Rate & 8″ Axial
Testing: Dye-Penetrant and Air Soap & Bubble

U.S. Bellows custom designed these externally pressurized expansion joints for pneumatic conveying and filtration at a manufacturing facility in Missouri. The units were completely fabricated for 304 stainless steel. They are 4″ in diameter and 57″ in length. These expansion joints are designed for an operating temperature or 500°F at 30 psig, with a spring rate of 189 lb./in. and can absorb 8″ of axial compression. The units were 100% dye-penetrant and air soap & bubble tested prior to shipment.

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

August 15, 2016

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

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.

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63″ Inline Pressure Balanced Expansion Joints with Refractory Lining for a Clean Fuels Project

June 22, 2010

63" Inline Pressure Balanced Expansion Joints with Refractory Lining for a Clean Fuels Project
Inline Pressure BalancedExpansion Joints

63" Inline Pressure Balanced Expansion Joints with Refractory Lining for a Clean Fuels Project
Lined with Insulating and Abrasion Resistant Refractor
The inline pressure balanced expansion joints were manufactured for a clean fuels project in India. They are fabricated with Inconel 625 LCF bellows and ASTM A516 GR 70 carbon steel was used for the shell. The inside is lined with insulating and abrasion-resistant refractory. The expansion joints were pressure tested with air at 15 PSIG prior to shipment.
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What are the different types of expansion joints?

In general, there are fabric, metallic, and rubber expansion joints. At U.S. Bellows, we manufacture:

Metallic Expansion Joints

  • Single Expansion Joints
  • Hinged Expansion Joints
  • Gimbal Expansion Joints
  • Universal Expansion Joints
  • Elbow Pressure Balanced Expansion Joints
  • In-line Pressure Balanced Expansion Joints
  • Externally Pressurized Expansion Joints
  • Toroidal Expansion Joints
  • Thick Wall Expansion Joints
  • Slip-type Expansion Joints
  • Rectangular Metallic Expansion Joints
  • Refractory Lined Expansion Joints

Fabric Expansion Joints

* Rubber (Neoprene) Expansion Joints

Single tied metallic expansion joint
Metallic Expansion Joint
111372a2
Fabric Expansion Joint
93348a1
59″ Neoprene Expansion Joint
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