QUALITYProducts.
SINCE 1948.

• • Durability & Corrosion Resistance: A welded galvanized steel frame with a bronze finish and polyester powder coating stands up to harsh conditions, making these supply shutters ideal for industrial and commercial settings.

• • Smooth, Low-Maintenance Operation: Bronze pivot bushings keep the shutter blades moving freely without routine lubrication or frequent adjustments.

• • Optimized Airflow Management: The 6063 extruded aluminum blades are specially designed to allow efficient intake flow while minimizing reverse drafts.

• • Flexible Configuration: Choose from single or double panel models, and enjoy simple wall or fan mounting options to fit virtually any ventilation setup.

• • Proven Performance: Over 70 years of engineering expertise backs these shutters, giving you peace of mind with every installation.

• • Uniform Blade Operation: Every shutter comes with a tie bar linkage to ensure consistent, simultaneous blade movement, preventing partial openings.

• • Manufacturing & Industrial Facilities: Provide fresh air and maintain proper internal pressure in production plants and workshops.

• • Agricultural Buildings: Ideal for barns, livestock housing, and greenhouses, where controlling incoming airflow and humidity is crucial.

• • Warehouses & Storage Facilities: Maintain stable internal environments and help regulate temperature by allowing fresh air intake.

• • Workshops & Garages: Draw in outside air to replace fumes or stale interior air, promoting a safer, more comfortable environment.

Frame Construction

• • Material: Welded galvanized steel for superior strength

• • Finish: Bronze finish with a polyester powder coat for enhanced corrosion resistance

Blade Construction

• • Material: 6063 extruded aluminum blades

• • Design: Engineered for low airflow resistance and to help minimize backdraft infiltration

Pivot Mechanism

• • Bushings: Bronze pivot bushings for smooth, low-friction movement and reduced wear

• • Tie Bar Linkage: Ensures uniform blade operation so all blades open and close together, preventing partial openings

Configuration Options

• • Models: Single or double panel designs for varying airflow requirements

• • Mounting: Available in wall mount and fan mount configurations for easy integration

Additional Notes

• • Size Range: 27 3/8″ sq up to 68 1/4″ sq models; 4″ shutter depth

• • Operation: Requires a manual pull chain or electric operator (115/230v 1-phase) to open the shutter prior to energizing any supply fan.

IWS Series Exhaust Shutters: Designed for efficient removal of inside air, perfectly complementing RIWS intake shutters in a balanced ventilation system.

3000 Series Flangeless Dampers: Ideal for applications where a flangeless design is preferred, providing a streamlined solution.

3100 Series Front Flange Damper: Suited for installations where a front flange design is needed, offering secure mounting and reliable operation.

3200 Series Rear Flange Damper

3500 Series Rear Flange Damper