Belimo AFRB24 Valve Actuator, Spring Return, Ac/Dc 24 V, On/Off
$450.00
The Belimo AFRB24 is a heavy-duty, spring-return valve actuator delivering 180 in-lb [20 Nm] of torque for On/Off control in HVAC applications. Operating on AC/DC 24 V, it provides true mechanical fail-safe reliability for chilled water, hot water, and steam loops.
Upgrade your hydronic system’s reliability with the Belimo AFRB24 spring-return valve actuator. Engineered for high-torque applications, this commercial-grade actuator provides precise two-position (On/Off) control for large-diameter ball valves in air handling units, central plants, and VAV systems.
The standout feature of the AFRB24 is its mechanical fail-safe function. In the event of a power loss, the internal spring automatically drives the valve back to its original safe state (either normally open or normally closed depending on setup), protecting critical infrastructure from thermal issues or freezing.
Key Benefits:
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High Torque Performance: Delivers 180 in-lb [20 Nm] of constant torque, ensuring tight close-off even under high differential pressures.
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Smart Overload Protection: Features electronic stall protection throughout its entire 90-degree rotation, preventing motor burnout and extending service life.
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Manual Override Lock: Comes with a 5 mm hex crank tool, allowing technicians to manually position and lock the valve during installation or system testing.
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Plenum Rated Housing: UL 2043 certified, making it suitable for direct installation inside drop ceilings and air handling plenums.
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