Gates, Valves and Diverters

Take control of your airflow. Blast gates, diverter valves, and isolation valves let you balance and direct air across multi-station systems.

Gates, valves, and diverters give you control over airflow direction and volume across a multi-station or multi-process duct system. Blast gates isolate individual machine drops, diverter valves — including summer/winter configurations — redirect airflow seasonally or by process, and no-return valves and explosion isolation valves add a layer of safety in combustible dust environments. These components are essential for system balancing, keeping capture velocity where you need it as demand shifts across the system.

Control Multi-Station Airflow

Blast gates and diverters let you control airflow across multi-station systems.

Seasonal Summer/Winter Control

Summer/winter diverter valves adjust airflow seasonally without re-engineering ductwork.

Combustible Dust Safety

Explosion isolation and no-return valve options support combustible dust safety.

Gates, Valves and Diverters

Our gates come in automatic and manual versions, all made with durable metals and precision welding.

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

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3"-24"

Mini Leak Gate

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*across the blade

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3"-8"

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*to the atmosphere

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3"-24"

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3"-38"

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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

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3"-54"

AUTO BUTTERFLY

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3"-54"

WEIGHTED BUTTERFLY

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3"-54"

CHAIN OPERATED BUTTERFLY

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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.

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.

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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

Manual Cut Off Half Gate

Manual Cut Off Half Gate

Like full gates, our manual cut off half gates (blast gates) are cast aluminum body units with galvanized or stainless steel blades that smoothly move in and out of the air stream to fully cut off or partially close air going to the duct so as to balance the system and direct the air.

Manual Full Cut-Off

Manual Full Cut Off Gate

Our manual full cut off gates (blast gates) are cast aluminum body units with blades that smoothly move in and out of the air stream to fully cut off the air or partially close off the duct so as to balance the system and direct the air. A thumb screw allows the gate to be locked in any position.

Manual Air Tight Blast Gate

This airtight frame gate utilizes a fully welded body to stop leaks in your work environment. They are recommended for high-moisture systems, oil mist systems, and laboratories where a standard cut-off may leak.

Automatic Gate

Automatic Gates (AC Voltage)

Automatic Gates, also known as Blast Gates or Slide Gates, use solenoids (12/24V AC/DC, 120/220V) to control pneumatic cylinders. Operates at 90 PSI, available in 3"-24" diameters.

Automatic Gate–DC Voltage

Automatic Gates (DC Voltage)

Automatic Gates, also known as Blast Gates or Slide Gates, use solenoids (12/24V AC/DC, 120/220V) to control pneumatic cylinders. Requires 90 PSI. Available in 3"-24" diameters.

Manual Diverter Valve

Manual Diverter Valve

Manual Diverter Valves (butterfly or gate) efficiently redirect airflow between two paths with a durable sealing plate. Ideal for plastic, paper, or woodworking. Includes easy-access inspection door.

Automatic Diverter Valve

Automatic Diverter Valves (butterfly or gate) redirect airflow between two paths with solenoid-controlled pneumatic cylinders (12/24V AC/DC or 110/220V, 80 PSI). Heavy-duty, easy-to-clean, ideal for plastic, paper, or woodworking.

Automatic Butterfly Valve with Half Moon Stops – AC Voltage

Automatic Butterfly Valve With Half Moon Stops -AC Voltage

Ductwork Butterfly (Gate) Valves adjust airflow with a solenoid-controlled pneumatic cylinder. Operates at 80 PSI and supports 12/24V AC, or 110/220V signals. Durable 3/16" disk ensures long life.

Autoatic Butterfly Valve with Half Moon Stops – DC Voltage

Automatic Butterfly Valve With Half Moon Stops -DC Voltage

Ductwork Butterfly (Gate) Valves adjust airflow with a solenoid-controlled pneumatic cylinder. Operates at 90 PSI and supports 12/24V DC, or 110/220V signals. Durable 3/16" disk ensures long life.

Buttterfly Valve

Butterfly Valve

A circular disk mounted on an internal shaft pivots to control airflow from fully open (100% flow) to fully closed (shutting off all air) and anywhere in between. Once the butterfly valve (gate) is set, a locking quadrant holds it in place.

Flap Exhaust Valves or Flap Stacks

Flap Exhaust Valves (Flap Stacks)

Flap Exhaust Valves (butterfly or gate), or Winged Stacks, open with airflow and close when idle, minimizing resistance and protecting ducts from rain. Available in 4"-32" diameters.

VigiFlap Explosion Isolation Valve. EN 16447 and NFPA 69 certified.

Explosion Isolation Valve

The VigiFlap Explosion Isolation Valve (butterfly or gate) is expertly engineered to protect your facility by preventing the spread of overpressure or flame fronts caused by explosions in downstream equipment such as dust collectors, cyclones, and filters.

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.

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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.

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.