Belimo B209+LRB24-3 Valve Assembly

The Belimo B209+LRB24-3 is a precision-engineered 2-way characterized control valve (CCV) assembly designed for modulated or on/off control of hot and chilled water in HVAC systems. This 1/2" NPT assembly features a stainless steel ball and stem, ensuring high durability and resistance to scaling in closed-loop hydronic systems. With a Cv of 0.8, it provides accurate flow regulation for terminal units and hydronic heating coils. Paired with the LRB24-3 non-spring return actuator, the unit delivers 45 in-lb of torque and is compatible with on/off or floating point control signals. Operating on 24VAC/DC, the actuator includes a manual override and a brushless DC motor for consistent run times. The TEFZEL valve seats and EPDM O-rings provide a bubble-tight shut-off (zero leakage), maintaining system efficiency and preventing ghost flows in high-performance piping circuits.

Key Benefits

• Corrosion Resistance: The stainless steel trim ensures longevity and maintains the integrity of the flow characteristic over the life of the valve.
• Precise Control: Features a specialized characterizing disc that provides an equal percentage flow response, ideal for linear heat transfer in coil applications.
• Reliable Actuation: The LRB24-3 actuator is maintenance-free and utilizes a non-spring return mechanism for stable floating control.
• Leak Prevention: Rated for zero percent leakage, significantly reducing energy waste in variable primary flow systems.

Common Questions

What is the maximum close-off pressure for the B209+LRB24-3?
This assembly is rated for a close-off pressure of 200 psi, making it suitable for high-rise hydronic applications where differential pressure and system head must be managed.

Can this valve be used in steam applications?
No, the Belimo B209 CCV series is specifically engineered for water and glycol solutions (up to 60%). For steam applications, a different valve body material and seal configuration are required.

How do I wire the LRB24-3 for floating control?
The LRB24-3 uses a 3-wire connection. Apply 24V to the common and the respective clockwise or counter-clockwise terminals to drive the actuator position as required by the DDC controller.

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.