How does a volume control damper work?
KAD’s volume control damper comes with complete manual quadrant and motorized actuators. Manual dampers work exactly as they sound. The user twists a screw, which governs the flow of air to a section of pipe. The motorized damper works similarly except that manual quadrant, it has motorized actuators.
What is pressure relief damper?
Pressure-relief damper will allow one-way pressure relief in the ductwork. This feature is based on imbalanced blades. When the pressure in the duct rises above selected value (from 30 Pa to 150 Pa, up to 300 Pa optionally) the damper blades open to allow pressure relief.
What is a gravity damper?
Backdraft dampers (also known as gravity dampers) are used in ventilation systems to allow airflow in one direction and prevent airflow in the opposite direction. A relief damper is developed with an elevated and adjustable start-open pressure while providing the backdraft function.
Where do I put the volume control damper?
These volume control dampers are installed in branches of Air Distribution duct. The Opposed Blade Dampers are used to carry out a rough air system balance with closer control being carried out at the individual grilles or diffuser.
What is a balancing damper?
Balancing dampers are simply manual butterfly dampers encased in a sleeve. Each branch has a balancing damper installed. In this way, it’s possible to regulate the airflow by adjusting the position of the damper.
What is a relief damper?
Pressure Relief Dampers The FAMCO Pressure Relief Damper (often called a Barometric Damper) is commonly used to relieve built up pressure in zoned duct system that could potentially cause damage to HVAC equipment. The sliding weight can be adjusted to open when a certain pressure is reached.
What is the most common type of damper?
Louver dampers use flat blades on hinges to fill any size of duct. They are one of the most commonly used types of HVAC dampers.