Rectangular Metal Expansion Joints

We manufacture our rectangular expansion joints in a virtually unlimited size range and in any width required, regardless of the configuration.

Our rectangular metal duct expansion joints are custom-designed and manufactured to meet your specific needs, ensuring optimal performance in various applications.

  • Corten and stainless steel are the most popular.
  • Available in single or multiple convolutions.
  • Bellow shapes are available in Omega (round), V (accordion), Box and/or Doghouse configurations.
  • Bellows can be singular or multiple depending on the application.
  • Metal flue duct expansion joints are available in all alloys.
  • End connections can be flanged (bolt-in) or weld-in.
  • Designed to the American Society of Mechanical Engineers (ASME) standards. We only have certified welders in our shop. Testing after manufacturing is available.
  • Can be designed to carry duct loads.
  • Excellent for high pressure and/or steam service conditions.
  • Auxiliary items readily available include pins and guides, limit rods, insulation pillows, baffles, etc.
  • Corten, carbon, and stainless steel normally in stock at our factory run from 11-31 gauge.

Corten and stainless steel are the most popular materials for duct expansion joints, available in single or multiple convolutions with shapes like Omega (round), V (accordion), Box, and Doghouse. Our custom metal expansion joints offer flexibility and reliability, suitable for diverse industrial applications. Metal flue duct expansion joints come in various alloys with flanged (bolt-in) or weld-in end connections, all meeting ASME standards and crafted by certified welders. Ductwork expansion joints are engineered to handle duct loads, ideal for high-pressure or steam service. Auxiliary items such as pins, guides, limit rods, insulation pillows, and baffles are readily available, supported by our stock of Corten, carbon, and stainless steel from 11 to 31 gauge.

metal flue duct expansion joint

Rectangular/Square Corner Options

  • We can manufacture in an unlimited size range.
  • Single miter corner: This brings the sections together as the corner with one weld exactly at the apex.
  • Double miter corner: A little more expensive than a single miter yet a double miter involves a formed corner section with welds at least 24″ from the corner apex. Therefore, no welds in the apex means less stress on the welds and extended service life.

Request a Quote for Rectangular Metal Expansion Joints

To request a quote for an expansion joint with a rectangular/square corner option, download the Rectangular Metallic Flue Duct RFQ form.
To request a quote for an expansion joint with a round bellow shape option, download the Round Metallic Flue Duct RFQ form.
Please email the completed form to jwright@precisionhose.com.