Belimo B232+AFRB24 Actuator

The Belimo B232+AFRB24 is a heavy-duty 1.25" 2-way Characterized Control Valve (CCV) and actuator assembly designed for high-performance hydronic control in air handling units and heating/cooling coils. This stainless steel trim valve features a 37 Cv rating and an equal percentage flow characteristic, ensuring stable loop control and preventing the common "hunting" issues associated with lower-quality assemblies. Driven by the AFRB24 spring return actuator, the system provides 180 in-lb of torque for a reliable 200 psi close-off pressure. Operating on a 24 VAC/DC power supply, this on/off (two-position) fail-safe unit ensures the valve returns to a known safety position during power loss. Built with a NEMA 2 rated enclosure and internal NPT threads, it is a robust solution for contractors managing variable flow systems where precision and long-term durability are non-negotiable.

Core Benefits:

• Precision Flow Control: The equal percentage flow characteristic and 37 Cv rating optimize heat transfer and stabilize building automation systems.
• Superior Close-Off: Rated for a 200 psi close-off with 180 in-lb of torque, ensuring zero leakage (0% for A – AB) in high-pressure hydronic loops.
• Fail-Safe Reliability: Integrated spring return mechanism provides mechanical fail-safe security for critical HVAC components.
• Rugged Construction: Features a stainless steel ball and stem with a nickel-plated brass body for maximum corrosion resistance and longevity.
• Versatile Compatibility: Ideal for unit ventilators, VAV box re-heat coils, and bypass loops using hot/chilled water or up to 60% glycol.

Common Questions:

What is the maximum fluid temperature this valve can handle?
The assembly is rated for fluid temperatures ranging from 0°F to 250°F (-18°C to 120°C).

Can the fail-safe direction be reversed?
Yes, the spring return direction (clockwise or counter-clockwise) is reversible by changing the mounting orientation of the actuator.

Does this unit require an electrical ground?
No, the AFRB24 actuator meets cULus requirements without the need for a separate electrical ground connection.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.