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Flanged Ductwork

Built for the big, demanding jobs. Flanged ductwork delivers the durability and long-term reliability that large, high-pressure, and abrasive applications require.

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Flanged Ductwork delivers heavy-duty performance for large, high-pressure, abrasive, and engineered applications where durability and long-term reliability in harsh environments matter most. Each duct section terminates in a bolted metal flange — available as a Vanstone edge, which rotates freely to align bolt holes, or a welded edge, where the flange face itself becomes the sealing surface. Offered in Black Iron, Galvanized Steel, and Stainless Steel across light to very heavy gauges, Flanged Ductwork is built for permanent infrastructure and demanding industrial conditions that call for a stronger, more structural connection than clamp-together systems provide.

Built for Extreme Duty

Extremely durable construction built for large-diameter, high-pressure, and abrasive applications.

Vanstone or Welded Flanges

Vanstone or welded-edge flange options for permanent, structural duct infrastructure.

Three Materials, Many Gauges

Available in Black Iron, Galvanized, and Stainless Steel across light to heavy gauges.

Products in this collection

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Flanged Ductwork

Flanged Duct

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Flange. Also called Angle Rings or Angle Flanges.
Flanged Ductwork

Angle Rings/Flanges

Icon Rounded Arrow White - BRIX Templates

Flanged Ductwork

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different kinds of gates

different kinds of BUTTERFLY gates

Benefits

Leak Free?

Available in Auto

Fully Fabricated

Half Cut Off Option

Available fully in SS

Limit Switch Option

Sizes Available

Aluminum Body Cut Off

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3"-24"

Mini Leak Gate

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*across the blade

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Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.

3"-8"

Blast Gate

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*to the atmosphere

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Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.

3"-24"

Fully Fabricated Cut Off

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3"-38"

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Green checkmark icon inside a white circle with a green outline.
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3”-32”

Available fully in SS

Great for use high up in the air

Available w/ half moon stops and gaskets & Oil Light Bushings (adder)

Safe for systems with particles going through the duct

Locking Quadrant

Limit Switch available (adder)

Reed Switch Available (adder)

Sizes Available

MANUAL BUTTERFLY

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Green checkmark icon inside a white circle with a green outline.

3"-54"

AUTO BUTTERFLY

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Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.

3"-54"

WEIGHTED BUTTERFLY

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Green checkmark icon inside a white circle with a green outline.

3"-54"

CHAIN OPERATED BUTTERFLY

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Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.
Green checkmark icon inside a white circle with a green outline.

3"-54"

Wondering which gate/butterfly gates fits best for your needs? Talk to your Duct guy at (336)-904-0112


RECLAIM YOUR TIME


Woodworkers and shop employees can spend 30 min/day, 2.5 hours/week, 180 hours/year JUST on changing out bags from your open baghouse waste collector. Why spend all that time and money changing out bags when you can be making more money? That's where our baghouse comes in.
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WASTE MANAGEMENT Solutions Tailored for Small TO LARGE Shops

At US Duct, we understand ALL owner's time constraints in managing a shop. Whether you run a woodshop, metal fabrication shop, or manufacturing facility, we offer high-quality, cost-effective solutions designed to fit your space, improve your workflow, and grow your business.

Close-up of a person holding a wooden plank in a woodworking workshop.
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Why Small Shops Choose US Duct

We’re not just a supplier, but your trusted partner for ductwork solutions that grow with your shop. Small shop owners choose US Duct because we deliver:

  • Personalized Solutions: Every duct system is tailored to your needs.

  • Fast Turnaround Times: Get your system quickly and reduce downtime.

  • Expert Advice: Our team is here to guide you every step of the way.

Products

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Products in this collection

Flanged Duct

We manufacture flanged ductwork from 3" to 40" and beyond. We also provide duct with flanges (also called angle rings or angle flanges) in black iron, galvanized, or stainless steel (SS) and with or without holes. The duct to which these flanges are attached is available in sizes 3" and up, and also in black iron, galvanized or stainless steel.

View Product
Flange. Also called Angle Rings or Angle Flanges.

Angle Rings/Flanges

Angle ring flanges, commonly known as angle rings, join ductwork together. Standard rings come punched with holes. Flange angle rings are available in Carbon Steel (Black), Galvanized Steel, and Stainless Steel.

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Our Promise

To you

Our commitment is to your success. We believe in building lasting partnerships where your growth fuels ours. We're here to support your business with the best in ductwork solutions,helping you achieve more every step of the way.

Laughing fabrication team in the shop.

Talk to a Duct Guy or Gal

Get started on a solution tailored to your needs, or explore our range of inline separators, self-dumping hoppers, and baghouses for even more ways to optimize your workspace.

Shop products
Contact us

Talk to a Duct Guy or Gal

Get started on a solution tailored to your needs, or explore our range of inline separators, self-dumping hoppers, and bag houses for even more ways to optimize your workspace.

Find a Duct Expert
Contact us