Air Volume Control Damper Splitter Damper Bracket Castings Damper Ball Joint

Product Description

Product Description

An air damper ball joint (sometimes called a damper ball joint, actuator ball joint, or HVAC ball joint) is a small mechanical linkage component used in automotive and HVAC (heating, ventilation, and air conditioning) systems to connect the air blend doors, mode doors, or recirculation doors inside the dashboard to their electric or vacuum actuators.
 

• The actuator (a small motor or vacuum diaphragm) needs to push/pull the air door flap to change airflow direction or temperature.
• The door flap is on a rotating shaft, while the actuator moves in a straight line.
• The ball joint converts that straight-line motion into smooth rotation without binding, while allowing some misalignment and flex (dashboards vibrate and parts expand/contract with temperature).

 

 

A splitter damper bracket is a specialized hardware component used in HVAC (heating, ventilation, and air conditioning) systems to support and mount splitter dampers within ductwork. Splitter dampers are adjustable blades or vanes installed at branch points (like tee junctions) in duct runs to regulate or divert airflow, often in low-pressure applications to balance air distribution, reduce noise, or close off sections of the system. The bracket typically consists of a sturdy steel frame with a brass pivot or ball joint mechanism, allowing the damper blade to rotate smoothly via a 1/4-inch round shaft or rod for precise control.

 

The SPR40 (also referenced as SRP40 or SRP-40 in some catalogs) is a specific model manufactured by Duro Dyne, a leading supplier of sheet metal and air distribution accessories. Here's a breakdown:

• Design: It's a compact, galvanized steel bracket with a 1/4-inch round shaft compatibility, often including a brass pivot for corrosion resistance and low-friction operation.
• Dimensions and Compatibility: Sized for standard duct installations (e.g., up to 40 inches in some configurations, though exact specs vary by vendor); pairs with ball joint damper castings like the SRP-14 for full assembly.
• Installation: Mounts directly to sheet metal ducts using screws or clips. It enables quick setup of splitter dampers by securing the blade and actuator rod, ensuring level alignment for optimal airflow.
• Applications: Commonly used in commercial or residential HVAC setups for zoning, volume control, or energy efficiency. It's part of Duro Dyne's Specline™ regulator line, emphasizing easy assembly (often in kits with 1-2-3 installation steps).
• Durability: Built for long-term use in harsh environments, with premium steel construction to withstand vibration and temperature fluctuations.

A damper quadrant set (also called a quadrant damper set, hand quadrant, or damper regulator set) is a manual control assembly used primarily in HVAC ductwork to regulate the volume of air flowing through a rectangular or round damper.
 

A complete quadrant set usually consists of:

• Quadrant plate - A stamped metal plate (often galvanized steel) with a notched or perforated arc that locks the damper in position.
• Handle/lever - A short hand-operated lever or wing nut that you turn to open/close the damper.
• Locking mechanism - Usually a wing nut, spring, or detent that holds the damper blade at the desired angle.
• Shaft or axle - A square or round rod (typically 1/2" or 3/8") that goes through the duct wall and connects to the damper blade inside.
• Bearing or bushing - A plastic or metal sleeve that lets the shaft turn smoothly in the duct wall.
• Indicator - Markings on the quadrant showing "OPEN" and "CLOSED" positions and sometimes degrees or percentages open.
• Mounting hardware - Screws, nuts, or tek screws to attach it to the duct.

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