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Browse Dampers, Diffusers, Grilles, Louvers, Registers

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Showing 253 items within 13 product groups See all items from other sellers
  • Air Balance Balancing Dampers

    Air Balance Balancing Dampers
    See all 38 items in product family
    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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  • 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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  • 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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  • 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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  • Round Zoning Dampers

    Round Zoning Dampers
    See all 17 items in product family
    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
    See all 4 items in product family
    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
    See all 7 items in product family
    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
    See all 121 items in product family
    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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  • 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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  • 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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  • Flanged Heavy Duty Motorized Dampers

    Flanged Heavy Duty Motorized Dampers
    See all 20 items in product family
    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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