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Rectangular Metallic Pipe Expansion Joints

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Rectangular metal pipe expansion joints have a variety of applications in the power, petrochemical, refining, chemical, and steel industries. Like circular pipe expansion joints, rectangular pipe expansion joints absorb three types of movement: axial, lateral and angular. For the purpose of designing rectangular bellows, it is critical to know in which direction the lateral and angular movements will occur, i.e. parallel to the long and/or short side of the bellows. Unlike circular bellows where the pressure stress is a circumferential membrane (hoop) stress, the rectangular bellows must be designed for longitudinal (beam) bending stresses.

Features

Absorbs axial and lateral movements
Variety of bellows geometry (for long straight sides)
Normal guiding is required
Manufactured for a wide variety of materials

Technical Information

Installation & Maintenance (Metallic Expansion Joints)
Rectangular Expansion Joint Data Sheet
Types of Metallic Bellows Deflections
Bellows Expansion Joint Loads
How to Look for Signs of Expansion Joint Failure
View more Technical Information

FAQs

What is a metallic expansion joint?

Where should we use carbon steel expansion joints?

What is expansion joint ply?

Where can I find a metal expansion joint slide show?

Case Studies

9/16/18: Rectangular Metallic Expansion Joints Designed for an Exhaust Duct

11/16/14: 8′-1/2″ Long Rectangular Metallic Expansion Joint Designed with Mitered Corners for a Gas Turbine

9/21/10: Rectangular Metallic Expansion Joint with Cor-ten Flanges and Refractory Lining for a FCC Duct

7/16/08: U.S. Bellows, Inc. Designed and Fabricated an 84″ Long Rectangular Metallic Expansion Joint

10/15/04: Tandem Rectangular Expansion Joint for Turbine Exhaust

More Reading

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