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Browse Dampers, Diffusers, Grilles, Louvers, Registers

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  • Back Draft Dampers

    Back Draft Dampers
    See all 6 items in product family
    Back Draft Dampers Prevent Reverse Airflow For Air Ducts In A Variety Of Industrial Environments.

    Back Draft Dampers open with air flow and close when air flow stops. Dampers are spring loaded with positive closure and a rubber gasket. Available in a variety of sizes.

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  • Air Balance Fire Dampers

    Air Balance Fire Dampers
    See all 42 items in product family
    Air Balance Fire Dampers Are Used For Use In Static Systems..

    Vertical Fire Dampers are made of 22 gauge galvanized steel frame and blades for long lasting durability. Finish color is Silver. Fire rated for 1-1/2 -3 hours. Blades are in the airstream, 212°F replaceable fusible link. Variety of sizes available. All Fire Dampers Have A Depth of 4-7/8".

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  • Round Dampers

    Round Dampers
    See all 7 items in product family
    Round Dampers Prevent Reverse Airflow For Air Ducts In A Variety Of Industrial Environments.

    Round Dampers open with air flow and close when air flow stops. Dampers are made with 2-wire spring return. Power Open. 24V. Available in a variety of sizes.

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  • Air Balance Balancing Dampers

    Air Balance Balancing Dampers
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    Air Balance Balancing Dampers Are Used For Flexible Duct Or Spiral Pipe Applications.

    Air Balance Balancing Dampers are made with nylon bearings and galvanized steel frame and blade for lasting durability. Dampers may be mounted horizontally or vertically. Blade will extend into airstream in most cases. Maximum face velocity is 1500 FPM. Round Dampers measure 4-1/2" deep, while Rectangular Dampers and Square Dampers measure 3-1/2" deep.

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  • Round Zoning Dampers

    Round Zoning Dampers
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    Round Zoning Dampers Are Designed To Meet A Variety Of Needs For Circulating Air In Heating, Cooling And Ventilating Systems.

    Round Zoning Dampers are made of steel for long lasting durability. Built for installation flexibility, reliability and reduced callbacks. Enhanced design provides longer and quieter operation over life span of damper. Gasket ensures low leakage, reinforced blade construction, mechanical visual position indicators and use same universal motor as rectangular ZD damper. RRD Round Dampers easily inserted into rigid round ducts for retrofit zoning in forced air heating and cooling systems. Types are Retrofit Round Damper and Spring Return Round Damper. Retrofit Round Damper sizes are 5", 6", 7" and 8". Sprint Return Round Damper sizes are 5", 6", 7", 8", 9", 14", 16", 18" and 20". Mount types are Side and Direct Connection to Damper Shaft.

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  • Barometric Relief Dampers

    Barometric Relief Dampers
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    Barometric Relief Dampers Relieve Building Pressure In A Variety Of Industrial Environments.

    Barometric Relief Dampers are made with a weighted arm for controlled air release. Dampers are made from steel for lasting durability and strength. Available in four sizes.

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  • Zoning Modulating Automatic Round Dampers

    Zoning Modulating Automatic Round Dampers
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    Honeywell Modulating Automatic Round Dampers (MARD) Are 24V AC, Floating-Control Type Modulating Motors For Bypass And Zone Damper Control.

    Generally used in light commercial applications on systems larger than 5 tons that do not exceed 2" W.C. at the damper, but may be used in any residential system as well. When used as a bypass damper, it is controlled by the Static Pressure Control pressure switch. Single-blade. Modulating automatic round dampers are power open, power closed using an included ML6161 actuator.

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  • Blade Zoning Dampers

    Blade Zoning Dampers
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    Honeywell ZD Series Dampers Are Power Close, Spring Open Dampers With 24-Volt Spring-Return Motors That Control Circulating Air In Heating, Cooling And Ventilation Systems.

    For use when a fail-safe, normally-open damper is required. Works with TrueZONE systems and other electronic zoning systems. Adjustable minimum and maximum range stops allow you to adjust damper to meet your individual needs. Solid construction using extruded aluminum frame and blades. Quiet operation with fewer blades. Parallel blade design for low leakage performance. DuPont KEVLAR® gearing reduces wear, more than doubling damper life. Simple, easy-to-wire two-wire operation and easy slip-in design. Can be mounted on the side or bottom of the duct.

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  • Static Pressure Regulating Dampers

    Static Pressure Regulating Dampers
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    Honeywell Static Pressure Regulating Dampers (SPRD) Are Round Or Rectangular Single-Blade Barometric Relief Dampers That Prevent An Excessive Increase In Air Velocity.

    Mechanical damper with no electrical connections. Recommended for systems up to 1/2" static pressure and up to 2000 CFM. For use on zoned systems when the automatic closing of zone dampers can create an excessive increase in the air pressure and velocity through the duct system. This increase helps reduce the volume of air through the air handler and causes it to trip on high limit or to create ice on the coil. Static Pressure Regulating Dampers automatically open as the air pressure in the duct system increases, and exhausts the air into the return or dump zone. Both the position of the counterweight and the swing of the arm can be adjusted to allow the SPRD to open when necessary.

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  • Air Balance Control Dampers

    Air Balance Control Dampers
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    Air Balance Control Damper Provides Control Of Air Flow In Interior Areas.

    Air Balance Control Dampers have heavy-duty molded nylon bearings that make for long-lasting durability. Made with 16-gauge galvanized steel. Includes angle linkage and parallel blade. Damper leakage prevented with jamb and blade seals. Can be used in areas with a temperature of up to 200??F. Varying heights available. Heights and widths of 5-3/4 to 35-3/4 inches are available.
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  • Air Balance Backdraft Dampers

    Air Balance Backdraft Dampers
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    Air Balance Backdraft Dampers Are Used For Light-Duty Use In Exhaust Systems, Pressure Relief, Ceiling Vents And More.

    Air Balance Backdraft Dampers are made using extruded aluminum and bronze oilite bearings for long lasting durability. Polyurethane foam at blade edges allows for quiet operation and tighter seal. Light duty backdraft dampers suitable for use as a pressure relief damper. Available with optional counterweight for horizontal applications. 2" deep dampers available in variety of widths and lengths. Package quantity is 1.

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  • Snap On Dampers

    Snap On Dampers
    See all 5 items in product family
    Snap-on Duct Dampers are made to be used with Tab Collars (sold separately). HVAC dampers feature knob-operated worm gear that adjusts the patented butterfly valve with only 2-1/2 turns for full open or close positions. Ceiling duct dampers control the air volume, not air pattern, to provide minimum air restriction. Damper is made with unpainted, galvanized steel. Includes adjusting handle.

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  • Backdraft Dampers

    Backdraft Dampers
    See all 13 items in product family
    Backdraft Dampers Are Used For Use In Roof Curbs, Ductwork Or Wall Collars When Using A Fan Or Power Roof Ventilator.

    Backdraft Dampers are solidly manufactured with Galvanized Steel frames and Aluminum blades for long lasting durability and dependability. Frames are 2 inches in depth. Blades have a felt seal on the leading edge for quiet closing and better protection from the weather and are spring assisted to allow them to open quickly. Recommended for horizontal mount exhaust applications. 2000 velocity feet per minute. Available in a wide selection of 7-3/4 to 47-3/4 inch square units to fit rough openings of various sizes.

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  • Aprilaire® Zone Dampers

    Aprilaire® Zone Dampers
    See all 4 items in product family
    Aprilaire® Motorized Zone Dampers Are Used For Multi Program Systems in Commercial And Residential Applications.

    Aprilaire® Motorized Zone Dampers are made of made for long lasting durability and dependability. Round, solid steel round dampers with motorized control attachment. Available in 8, 9, 10, 12, 14, and 16 inch diameter sizes.

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  • Flanged Heavy Duty Motorized Dampers

    Flanged Heavy Duty Motorized Dampers
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    Flanged Heavy Duty Motorized Dampers Are Used For Heavy Duty Exhaust Or Supply Applications.

    Flanged Heavy Duty Motorized Dampers have a sturdy construction for long lasting durability and dependability. Used for controlling volume and protecting against the elements. Features welded corners for added strength and stainless steel jamb seals to keep out light, air and moisture. The 6 in. wide blades are center pivoted for reliable operation. Comes standard with an internally mounted, factory installed, 100-240 volt power open/spring close motor with end switches. Can be mounted vertically or horizontally to fit the required space. Velocity is 3500 FPM (feet per minute). Choose from models with an Aluminum Frame And Blades or from models with a Galvanized Frame And Blades for increased versatility. Dimensions vary per model. 1 Year Limited Warranty.

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  • Heavy Duty Motorized Dampers

    Heavy Duty Motorized Dampers
    See all 8 items in product family
    Hat Channel Motorized Dampers Are Used For Heavy Duty Exhaust Or Supply Applications.

    Hat Channel Motorized Dampers are solidly manufactured for long lasting durability and dependability. Extruded aluminum 5 inch deep frame has 7 inch wide center-pivoted blades for a full 90° rotation with parallel blade action. The TPV blade and stainless steel jamb seals help in keeping out light, air, and moisture. Can be used for exhaust or supply applications and mounted in a vertical or horizontal position. Comes standard with an internally mounted factory installed 100-240 volt power open/spring close motor with an end switch. 3500 velocity feet per minute. Available in 11-3/4 to 47-3/4 inch square widths and heights to fit rough openings of various sizes.

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  • Dampers For Round Ceiling Diffusers

    Dampers For Round Ceiling Diffusers
    See all 3 items in product family
    Round air dampers are made for use with Round Ceiling Diffusers (sold separately). These HVAC dampers feature knob-operated worm gear that adjusts the patented butterfly valve using only 2-1/2 turns for full open or close. Ceiling duct dampers control the air volume, not air pattern, to provide minimum air restriction. Damper is made with unpainted, galvanized steel. Steel ring has a brown finish and includes adjusting handle.

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