Which Material is Right For Your Damper Application? (2024)

Choosing to have dampers installed to help maintain and control the air movement throughout your home or business will prove to be an economical and environmentally friendly decision. Dampers are manufactured with mobile plates that adjust either automatically or manually to guide air through a building or block it if needed. They are often used for climate control in individual rooms as well. After they have been set up inside HVAC ductwork, a chimney or other air handling equipment, dampers can also work to improve the indoor air quality of a structure. There are an assortment of dampers to pick from depending on the type of building and its airflow requirements, and you can further select size, shape, finish, etc. Below are a few examples of the most common materials that dampers are made of.

Stainless Steel

Stainless steel dampers are a great choice for a wide variety of needs and industries. Stainless steel is proven to hold up its strength under even drastically high temperatures and has excellent durability, resistance to corrosion and flexibility, which makes it useful in many situations. If you’re looking to place a damper in a building that specifically requires hygienic conditions (laboratories, pharmaceutical processing plants, etc.), stainless steel might be the material to consider. It will also retain its shiny appearance without being anodized or painted. Stainless steel dampers can be a bit more costly to produce at first, but in the long run, their low maintenance and long life expectancy makes up for it. One last thing to think about when it comes to this material is its heaviness.

Aluminum

Aluminum dampers are a low cost alternative that are even easier to maintain. Aluminum doesn’t rust and is noted for its corrosion resistance, which allows dampers that are produced from the material to have a long life and keep its original aesthetic appeal without deteriorating from the elements. A big advantage of aluminum is its ability to be recycled and reused numerous times without ever losing its properties. Aluminum dampers are flexible, durable and much lighter than one made of stainless steel. While aluminum is definitely strong enough for many kinds of equipment, you should also consider that it is not as strong as steel and tends to expand in higher temperatures.

Galvanized

Galvanized dampers are made of steel that has been coated with zinc to make it corrosion resistant. This makes an attractive option for outside applications since they can endure weather elements and shouldn’t rust for decades to come. The zinc coating also allows for galvanized steel dampers to be protected from impact and abrasions. While galvanized steel is stronger than aluminum, it will eventually begin to rust.

There are many advantages to each of these materials, and whichever you choose to have your dampers made of, you’re sure to benefit from your new ventilation system.

Which Material is Right For Your Damper Application? (2024)

FAQs

What material is used for air dampers? ›

Stainless steel dampers are a great choice for a wide variety of needs and industries. Stainless steel is proven to hold up its strength under even drastically high temperatures and has excellent durability, resistance to corrosion and flexibility, which makes it useful in many situations.

How to choose a damper? ›

A guide to choosing the perfect damper for your application
  1. Identify the motion type: Consider the movement you need in relation to the space in which the damper can be positioned. ...
  2. Load requirements: ...
  3. Size and form: ...
  4. Environmental conditions: ...
  5. Speed of motion: ...
  6. Ease of installation:

How to select a fire damper? ›

DYNAMIC rated fire dampers can be applied in all HVAC systems. When selecting a fire or combination fire smoke damper there are five basic decisions which affect final model selection: blade style, fire resistance rating, leakage rating, elevated temperature, and operational ratings.

What are the components of a damper? ›

Their main components are the blades, which adjust their position to control airflow. In addition, dampers include frames, linkages, axles, bearings, seals, blade pins, actuating motors, flanging, jackshafts, and sleeves, among other components.

What are dampers made of? ›

The damper is composed of two elements: an inertia mass and an energy dissipating element. Most often made of rubber, this element may be composed of a synthetic elastomer, a clutch, a spring or fluid.

What is the application of damper? ›

Dampers are a lot more than simple airflow adjusters. They are integral to the control of cool, warm, high temperature, dirty, or even toxic air. They may also be used for fire protection. Dampers maintain air quality and provide worker safety, which is why they are essential for industrial airflow regulation.

How many types of dampers are there? ›

The primary damper types include control, balancing, backdraft, multizone, industrial, and safety dampers. Control dampers: These are installed at various ductwork junctures to regulate airflow throughout the HVAC system. They can also help mix hot and cold air to attain the ideal temperature zone for occupants.

How do I find my damper? ›

HVAC dampers are usually inside your ducts, close to the main air handler. You can find the dampers by looking at the outside of your ducts for a red switch on the exterior. If you can't find the HVAC dampers installed near the air handler, refer to your HVAC system's blueprint to locate them.

Why do you need a damper? ›

Dampers are devices that regulate the flow of air through ventilation systems. They are often located within HVAC (heating, ventilation, and air conditioning) systems and are used to control the amount of air that flows into different areas of a building.

How should fire dampers be installed? ›

Fire dampers are installed in ducts passing through or in air outlet openings terminating at shaft walls, fire barriers (such as an occupancy separation wall, horizontal exit walls, corridor walls, corridor ceilings, floor-ceiling assemblies) and other fire resistance–rated assemblies as required by a building or life ...

How to identify a fire damper? ›

They work alongside fire doors and firewalls to contain the fire. Most fire dampers are installed near the wall or floor and are a part of the barrier they protect. You can find smoke dampers, which close when they detect smoke.

What is a normal fire damper? ›

Fire damper is a device installed in an air distribution system or an air transfer opening designed to close automatically upon detection of heat interrupting airflow and thereby restricting the passage of fire in the process.

What is damper material? ›

Conclusion Materials for vibration damping include metals, poly- mers, ceramics and their composites. Metals and poly- mers tend to be better than cement for damping due to their viscoelasticity. However, it is attractive to use a structural material (such as concrete) to provide some damping.

What is the formula for the damper? ›

The equation for the force or moment produced by the damper, in either x or θ, is: →Fc=c→˙x, →Mc=c→˙θ, where c is the damping constant.

What are the basics of dampers? ›

A damper is a device consisting of one or more rotating blades contained in an open frame. Their primary purpose is to regulate flow at key points in a system. They can also be designed to modulate flow. There are several different types of dampers in HVAC, and each type serves a purpose in the overall system.

What materials are used for air vents? ›

By far the most common type of rigid air duct material found in today's homes is sheet metal, which typically refers to either galvanized steel or aluminum metal. They typically come in various shapes: Round, rectangular, or even in a spiral oval shape in some situations.

What material are fire dampers made of? ›

There are two common construction types of fire dampers: curtain and multi-blade. Both styles are manufactured using either galvanized or stainless steel, and both utilize a fusible link to hold the damper blades open until it reaches an elevated temperature (minimum of 165°F).

What material is volume damper? ›

These dampers are designed to operate from one control point. The damper's blade opening is controlled by hand locking quadrant or motor. MATERIAL Extruded Aluminum or galvanized steel. Aero foil blade made from Extruded Aluminum or 3-Groove bended blade for Galvanized steel construction.

Which type of damper is typically used for fresh air intake? ›

The Fresh Air Damper (FAD) is a 24VAC power-open, power-close motorized air damper designed for installation in a fresh air intake duct connected to an outdoor air intake hood and a duct fan or the HVAC return plenum, to control the flow of fresh air into the home.

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