Rotary Vents
Description
Rotary vents, also known as circular vents, are ventilation devices used to regulate the flow of air in HVAC systems. They are typically circular in shape and consist of multiple blades that rotate around a central axis to adjust the direction and volume of airflow. Rotary vents are commonly used in residential and commercial HVAC systems to control the flow of air into different areas of a building. They are often installed in walls, ceilings, or floors and can be adjusted manually or automatically to direct air in a particular direction.The blades of rotary vents can be made from a variety of materials, including plastic, aluminum, and steel. They are usually adjustable and can be angled to direct air in different directions, making them useful for directing air towards specific areas or away from obstructions.
Product Specifications
Frequently Asked Questions
How should airflow capacity be evaluated for Rotary Vents?
Rotary vent airflow capacity depends on multiple factors: NFA - the open area around the louvers and access from the base; wind speed - expressed as a CFM rating, commonly measured at a conservative speed (e.g., 5 mph), assuming bearing quality remains in good standing; and intake balance - which requires that soffit, gable, and other intake vents remain unobstructed.
How do Rotary Vents go in?
Match the opening and mounting surface to the selected vent's base opening size, keep moving parts unobstructed, and preserve access for inspection. Curb- and ridge-mounted rotary vents require especially accurate matching. Additional flashing and caulking can be used to support a proper fit.
What is the difference between Rotary Vents and Stationary Vents?
A rotary vent has moving blades that adjust the direction and volume of airflow. A stationary vent has no moving parts and relies on natural air movement through a fixed opening.
Should I use galvanized or aluminum for Rotary Vents?
For rotary vents, galvanized steel is the general-purpose choice. Aluminum is lighter and more corrosion-resistant, but usually more expensive.
How do Rotary Vents change the direction and volume of airflow?
Rotary vents use adjustable rotating blades to regulate the direction and volume of airflow through an HVAC opening.
What metals can I get Rotary Vents in?
Rotary Vents are made from galvanized steel or aluminum.