Belimo B349+AFRB24-SR 2-Inch 3-Way Characterized Control Valve with Actuator

The Belimo B349+AFRB24-SR is a complete characterized control valve assembly combining a 2-inch bronze 3-way valve body with an AFRB24-SR proportional actuator. This assembly is engineered for hydronic HVAC systems requiring precise flow control in heating, cooling, and heat pump applications.

Key Specifications:

• Valve Size: 2 inches (DN 50) with NPT threaded connections
• Configuration: 3-way mixing/diverting valve design
• Flow Coefficient: 46 Cv for high-capacity applications
• Pressure Rating: 200 PSI maximum working pressure
• Actuator Power: 24V AC/DC operation
• Control Signal: 2-10 VDC proportional control input
• Spring Return: Fail-safe spring return mechanism for power-loss safety
• Valve Body Material: Bronze construction for durability and corrosion resistance

Features and Benefits:

• Factory-assembled and tested valve/actuator combination ensures reliable operation
• Characterized control valve (CCV) provides linear flow characteristics for accurate temperature control
• Spring return actuator automatically returns to fail-safe position during power failure
• Proportional 2-10 VDC control signal compatible with most building automation systems
• Compact direct-coupled design minimizes installation space requirements
• High flow coefficient supports large-capacity hydronic systems

This valve assembly is ideal for chilled water systems, hot water heating loops, heat pump applications, and any hydronic system requiring dependable modulating control with fail-safe functionality. The combination of Belimo's precision actuator technology with robust bronze valve construction delivers long-term reliability in commercial HVAC installations.